forked from OSchip/llvm-project
970 lines
31 KiB
C++
970 lines
31 KiB
C++
//===-- IRExecutionUnit.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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#include "llvm/ExecutionEngine/ExecutionEngine.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Module.h"
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#include "llvm/Support/SourceMgr.h"
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#include "llvm/Support/raw_ostream.h"
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#include "lldb/Core/DataBufferHeap.h"
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#include "lldb/Core/DataExtractor.h"
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#include "lldb/Core/Debugger.h"
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#include "lldb/Core/Disassembler.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/Section.h"
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#include "lldb/Symbol/SymbolContext.h"
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#include "lldb/Expression/IRExecutionUnit.h"
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#include "lldb/Target/ExecutionContext.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Target/ObjCLanguageRuntime.h"
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using namespace lldb_private;
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IRExecutionUnit::IRExecutionUnit (std::unique_ptr<llvm::LLVMContext> &context_ap,
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std::unique_ptr<llvm::Module> &module_ap,
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ConstString &name,
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const lldb::TargetSP &target_sp,
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std::vector<std::string> &cpu_features) :
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IRMemoryMap(target_sp),
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m_context_ap(context_ap.release()),
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m_module_ap(module_ap.release()),
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m_module(m_module_ap.get()),
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m_cpu_features(cpu_features),
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m_name(name),
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m_did_jit(false),
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m_function_load_addr(LLDB_INVALID_ADDRESS),
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m_function_end_load_addr(LLDB_INVALID_ADDRESS)
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{
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}
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lldb::addr_t
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IRExecutionUnit::WriteNow (const uint8_t *bytes,
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size_t size,
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Error &error)
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{
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lldb::addr_t allocation_process_addr = Malloc (size,
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8,
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lldb::ePermissionsWritable | lldb::ePermissionsReadable,
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eAllocationPolicyMirror,
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error);
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if (!error.Success())
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return LLDB_INVALID_ADDRESS;
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WriteMemory(allocation_process_addr, bytes, size, error);
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if (!error.Success())
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{
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Error err;
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Free (allocation_process_addr, err);
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return LLDB_INVALID_ADDRESS;
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}
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if (Log *log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS))
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{
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DataBufferHeap my_buffer(size, 0);
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Error err;
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ReadMemory(my_buffer.GetBytes(), allocation_process_addr, size, err);
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if (err.Success())
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{
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DataExtractor my_extractor(my_buffer.GetBytes(), my_buffer.GetByteSize(), lldb::eByteOrderBig, 8);
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my_extractor.PutToLog(log, 0, my_buffer.GetByteSize(), allocation_process_addr, 16, DataExtractor::TypeUInt8);
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}
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}
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return allocation_process_addr;
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}
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void
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IRExecutionUnit::FreeNow (lldb::addr_t allocation)
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{
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if (allocation == LLDB_INVALID_ADDRESS)
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return;
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Error err;
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Free(allocation, err);
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}
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Error
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IRExecutionUnit::DisassembleFunction (Stream &stream,
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lldb::ProcessSP &process_wp)
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{
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
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ExecutionContext exe_ctx(process_wp);
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Error ret;
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ret.Clear();
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lldb::addr_t func_local_addr = LLDB_INVALID_ADDRESS;
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lldb::addr_t func_remote_addr = LLDB_INVALID_ADDRESS;
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for (JittedFunction &function : m_jitted_functions)
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{
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if (strstr(function.m_name.c_str(), m_name.AsCString()))
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{
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func_local_addr = function.m_local_addr;
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func_remote_addr = function.m_remote_addr;
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}
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}
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if (func_local_addr == LLDB_INVALID_ADDRESS)
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{
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ret.SetErrorToGenericError();
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ret.SetErrorStringWithFormat("Couldn't find function %s for disassembly", m_name.AsCString());
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return ret;
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}
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if (log)
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log->Printf("Found function, has local address 0x%" PRIx64 " and remote address 0x%" PRIx64, (uint64_t)func_local_addr, (uint64_t)func_remote_addr);
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std::pair <lldb::addr_t, lldb::addr_t> func_range;
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func_range = GetRemoteRangeForLocal(func_local_addr);
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if (func_range.first == 0 && func_range.second == 0)
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{
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ret.SetErrorToGenericError();
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ret.SetErrorStringWithFormat("Couldn't find code range for function %s", m_name.AsCString());
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return ret;
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}
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if (log)
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log->Printf("Function's code range is [0x%" PRIx64 "+0x%" PRIx64 "]", func_range.first, func_range.second);
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Target *target = exe_ctx.GetTargetPtr();
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if (!target)
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{
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ret.SetErrorToGenericError();
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ret.SetErrorString("Couldn't find the target");
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return ret;
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}
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lldb::DataBufferSP buffer_sp(new DataBufferHeap(func_range.second, 0));
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Process *process = exe_ctx.GetProcessPtr();
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Error err;
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process->ReadMemory(func_remote_addr, buffer_sp->GetBytes(), buffer_sp->GetByteSize(), err);
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if (!err.Success())
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{
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ret.SetErrorToGenericError();
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ret.SetErrorStringWithFormat("Couldn't read from process: %s", err.AsCString("unknown error"));
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return ret;
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}
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ArchSpec arch(target->GetArchitecture());
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const char *plugin_name = NULL;
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const char *flavor_string = NULL;
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lldb::DisassemblerSP disassembler_sp = Disassembler::FindPlugin(arch, flavor_string, plugin_name);
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if (!disassembler_sp)
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{
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ret.SetErrorToGenericError();
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ret.SetErrorStringWithFormat("Unable to find disassembler plug-in for %s architecture.", arch.GetArchitectureName());
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return ret;
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}
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if (!process)
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{
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ret.SetErrorToGenericError();
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ret.SetErrorString("Couldn't find the process");
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return ret;
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}
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DataExtractor extractor(buffer_sp,
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process->GetByteOrder(),
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target->GetArchitecture().GetAddressByteSize());
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if (log)
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{
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log->Printf("Function data has contents:");
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extractor.PutToLog (log,
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0,
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extractor.GetByteSize(),
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func_remote_addr,
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16,
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DataExtractor::TypeUInt8);
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}
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disassembler_sp->DecodeInstructions (Address (func_remote_addr), extractor, 0, UINT32_MAX, false, false);
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InstructionList &instruction_list = disassembler_sp->GetInstructionList();
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instruction_list.Dump(&stream, true, true, &exe_ctx);
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// FIXME: The DisassemblerLLVMC has a reference cycle and won't go away if it has any active instructions.
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// I'll fix that but for now, just clear the list and it will go away nicely.
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disassembler_sp->GetInstructionList().Clear();
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return ret;
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}
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static void ReportInlineAsmError(const llvm::SMDiagnostic &diagnostic, void *Context, unsigned LocCookie)
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{
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Error *err = static_cast<Error*>(Context);
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if (err && err->Success())
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{
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err->SetErrorToGenericError();
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err->SetErrorStringWithFormat("Inline assembly error: %s", diagnostic.getMessage().str().c_str());
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}
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}
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void
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IRExecutionUnit::ReportSymbolLookupError(const ConstString &name)
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{
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m_failed_lookups.push_back(name);
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}
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void
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IRExecutionUnit::GetRunnableInfo(Error &error,
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lldb::addr_t &func_addr,
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lldb::addr_t &func_end)
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{
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lldb::ProcessSP process_sp(GetProcessWP().lock());
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static Mutex s_runnable_info_mutex(Mutex::Type::eMutexTypeRecursive);
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func_addr = LLDB_INVALID_ADDRESS;
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func_end = LLDB_INVALID_ADDRESS;
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if (!process_sp)
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{
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error.SetErrorToGenericError();
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error.SetErrorString("Couldn't write the JIT compiled code into the process because the process is invalid");
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return;
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}
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if (m_did_jit)
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{
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func_addr = m_function_load_addr;
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func_end = m_function_end_load_addr;
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return;
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};
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Mutex::Locker runnable_info_mutex_locker(s_runnable_info_mutex);
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m_did_jit = true;
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
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std::string error_string;
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if (log)
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{
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std::string s;
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llvm::raw_string_ostream oss(s);
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m_module->print(oss, NULL);
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oss.flush();
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log->Printf ("Module being sent to JIT: \n%s", s.c_str());
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}
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llvm::Triple triple(m_module->getTargetTriple());
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llvm::Function *function = m_module->getFunction (m_name.AsCString());
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llvm::Reloc::Model relocModel;
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llvm::CodeModel::Model codeModel;
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if (triple.isOSBinFormatELF())
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{
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relocModel = llvm::Reloc::Static;
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// This will be small for 32-bit and large for 64-bit.
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codeModel = llvm::CodeModel::JITDefault;
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}
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else
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{
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relocModel = llvm::Reloc::PIC_;
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codeModel = llvm::CodeModel::Small;
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}
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m_module_ap->getContext().setInlineAsmDiagnosticHandler(ReportInlineAsmError, &error);
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llvm::EngineBuilder builder(std::move(m_module_ap));
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builder.setEngineKind(llvm::EngineKind::JIT)
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.setErrorStr(&error_string)
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.setRelocationModel(relocModel)
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.setMCJITMemoryManager(std::unique_ptr<MemoryManager>(new MemoryManager(*this)))
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.setCodeModel(codeModel)
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.setOptLevel(llvm::CodeGenOpt::Less);
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llvm::StringRef mArch;
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llvm::StringRef mCPU;
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llvm::SmallVector<std::string, 0> mAttrs;
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for (std::string &feature : m_cpu_features)
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mAttrs.push_back(feature);
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llvm::TargetMachine *target_machine = builder.selectTarget(triple,
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mArch,
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mCPU,
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mAttrs);
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m_execution_engine_ap.reset(builder.create(target_machine));
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if (!m_execution_engine_ap.get())
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{
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error.SetErrorToGenericError();
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error.SetErrorStringWithFormat("Couldn't JIT the function: %s", error_string.c_str());
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return;
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}
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// Make sure we see all sections, including ones that don't have relocations...
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m_execution_engine_ap->setProcessAllSections(true);
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m_execution_engine_ap->DisableLazyCompilation();
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// We don't actually need the function pointer here, this just forces it to get resolved.
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void *fun_ptr = m_execution_engine_ap->getPointerToFunction(function);
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if (!error.Success())
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{
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// We got an error through our callback!
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return;
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}
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if (!function)
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{
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error.SetErrorToGenericError();
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error.SetErrorStringWithFormat("Couldn't find '%s' in the JITted module", m_name.AsCString());
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return;
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}
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if (!fun_ptr)
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{
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error.SetErrorToGenericError();
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error.SetErrorStringWithFormat("'%s' was in the JITted module but wasn't lowered", m_name.AsCString());
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return;
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}
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m_jitted_functions.push_back (JittedFunction(m_name.AsCString(), (lldb::addr_t)fun_ptr));
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CommitAllocations(process_sp);
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ReportAllocations(*m_execution_engine_ap);
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WriteData(process_sp);
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if (m_failed_lookups.size())
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{
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StreamString ss;
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ss.PutCString("Couldn't lookup symbols:\n");
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bool emitNewLine = false;
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for (const ConstString &failed_lookup : m_failed_lookups)
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{
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if (emitNewLine)
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ss.PutCString("\n");
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emitNewLine = true;
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ss.PutCString(" ");
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ss.PutCString(Mangled(failed_lookup).GetDemangledName(lldb::eLanguageTypeObjC_plus_plus).AsCString());
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}
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m_failed_lookups.clear();
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error.SetErrorString(ss.GetData());
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return;
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}
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m_function_load_addr = LLDB_INVALID_ADDRESS;
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m_function_end_load_addr = LLDB_INVALID_ADDRESS;
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for (JittedFunction &jitted_function : m_jitted_functions)
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{
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jitted_function.m_remote_addr = GetRemoteAddressForLocal (jitted_function.m_local_addr);
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if (!jitted_function.m_name.compare(m_name.AsCString()))
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{
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AddrRange func_range = GetRemoteRangeForLocal(jitted_function.m_local_addr);
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m_function_end_load_addr = func_range.first + func_range.second;
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m_function_load_addr = jitted_function.m_remote_addr;
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}
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}
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if (log)
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{
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log->Printf("Code can be run in the target.");
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StreamString disassembly_stream;
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Error err = DisassembleFunction(disassembly_stream, process_sp);
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if (!err.Success())
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{
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log->Printf("Couldn't disassemble function : %s", err.AsCString("unknown error"));
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}
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else
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{
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log->Printf("Function disassembly:\n%s", disassembly_stream.GetData());
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}
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log->Printf("Sections: ");
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for (AllocationRecord &record : m_records)
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{
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if (record.m_process_address != LLDB_INVALID_ADDRESS)
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{
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record.dump(log);
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DataBufferHeap my_buffer(record.m_size, 0);
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Error err;
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ReadMemory(my_buffer.GetBytes(), record.m_process_address, record.m_size, err);
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if (err.Success())
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{
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DataExtractor my_extractor(my_buffer.GetBytes(), my_buffer.GetByteSize(), lldb::eByteOrderBig, 8);
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my_extractor.PutToLog(log, 0, my_buffer.GetByteSize(), record.m_process_address, 16, DataExtractor::TypeUInt8);
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}
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}
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}
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}
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func_addr = m_function_load_addr;
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func_end = m_function_end_load_addr;
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return;
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}
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IRExecutionUnit::~IRExecutionUnit ()
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{
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m_module_ap.reset();
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m_execution_engine_ap.reset();
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m_context_ap.reset();
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}
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IRExecutionUnit::MemoryManager::MemoryManager (IRExecutionUnit &parent) :
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m_default_mm_ap (new llvm::SectionMemoryManager()),
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m_parent (parent)
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{
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}
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IRExecutionUnit::MemoryManager::~MemoryManager ()
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{
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}
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lldb::SectionType
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IRExecutionUnit::GetSectionTypeFromSectionName (const llvm::StringRef &name, IRExecutionUnit::AllocationKind alloc_kind)
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{
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lldb::SectionType sect_type = lldb::eSectionTypeCode;
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switch (alloc_kind)
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{
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case AllocationKind::Stub: sect_type = lldb::eSectionTypeCode; break;
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case AllocationKind::Code: sect_type = lldb::eSectionTypeCode; break;
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case AllocationKind::Data: sect_type = lldb::eSectionTypeData; break;
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case AllocationKind::Global:sect_type = lldb::eSectionTypeData; break;
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case AllocationKind::Bytes: sect_type = lldb::eSectionTypeOther; break;
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}
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if (!name.empty())
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{
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if (name.equals("__text") || name.equals(".text"))
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sect_type = lldb::eSectionTypeCode;
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else if (name.equals("__data") || name.equals(".data"))
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sect_type = lldb::eSectionTypeCode;
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else if (name.startswith("__debug_") || name.startswith(".debug_"))
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{
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const uint32_t name_idx = name[0] == '_' ? 8 : 7;
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llvm::StringRef dwarf_name(name.substr(name_idx));
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switch (dwarf_name[0])
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{
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case 'a':
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if (dwarf_name.equals("abbrev"))
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sect_type = lldb::eSectionTypeDWARFDebugAbbrev;
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else if (dwarf_name.equals("aranges"))
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sect_type = lldb::eSectionTypeDWARFDebugAranges;
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else if (dwarf_name.equals("addr"))
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sect_type = lldb::eSectionTypeDWARFDebugAddr;
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break;
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case 'f':
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if (dwarf_name.equals("frame"))
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sect_type = lldb::eSectionTypeDWARFDebugFrame;
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break;
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case 'i':
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if (dwarf_name.equals("info"))
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sect_type = lldb::eSectionTypeDWARFDebugInfo;
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break;
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case 'l':
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if (dwarf_name.equals("line"))
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sect_type = lldb::eSectionTypeDWARFDebugLine;
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else if (dwarf_name.equals("loc"))
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sect_type = lldb::eSectionTypeDWARFDebugLoc;
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break;
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case 'm':
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if (dwarf_name.equals("macinfo"))
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sect_type = lldb::eSectionTypeDWARFDebugMacInfo;
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break;
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case 'p':
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if (dwarf_name.equals("pubnames"))
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sect_type = lldb::eSectionTypeDWARFDebugPubNames;
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else if (dwarf_name.equals("pubtypes"))
|
|
sect_type = lldb::eSectionTypeDWARFDebugPubTypes;
|
|
break;
|
|
|
|
case 's':
|
|
if (dwarf_name.equals("str"))
|
|
sect_type = lldb::eSectionTypeDWARFDebugStr;
|
|
else if (dwarf_name.equals("str_offsets"))
|
|
sect_type = lldb::eSectionTypeDWARFDebugStrOffsets;
|
|
break;
|
|
|
|
case 'r':
|
|
if (dwarf_name.equals("ranges"))
|
|
sect_type = lldb::eSectionTypeDWARFDebugRanges;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
else if (name.startswith("__apple_") || name.startswith(".apple_"))
|
|
{
|
|
#if 0
|
|
const uint32_t name_idx = name[0] == '_' ? 8 : 7;
|
|
llvm::StringRef apple_name(name.substr(name_idx));
|
|
switch (apple_name[0])
|
|
{
|
|
case 'n':
|
|
if (apple_name.equals("names"))
|
|
sect_type = lldb::eSectionTypeDWARFAppleNames;
|
|
else if (apple_name.equals("namespac") || apple_name.equals("namespaces"))
|
|
sect_type = lldb::eSectionTypeDWARFAppleNamespaces;
|
|
break;
|
|
case 't':
|
|
if (apple_name.equals("types"))
|
|
sect_type = lldb::eSectionTypeDWARFAppleTypes;
|
|
break;
|
|
case 'o':
|
|
if (apple_name.equals("objc"))
|
|
sect_type = lldb::eSectionTypeDWARFAppleObjC;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
#else
|
|
sect_type = lldb::eSectionTypeInvalid;
|
|
#endif
|
|
}
|
|
else if (name.equals("__objc_imageinfo"))
|
|
sect_type = lldb::eSectionTypeOther;
|
|
}
|
|
return sect_type;
|
|
}
|
|
|
|
uint8_t *
|
|
IRExecutionUnit::MemoryManager::allocateCodeSection(uintptr_t Size,
|
|
unsigned Alignment,
|
|
unsigned SectionID,
|
|
llvm::StringRef SectionName)
|
|
{
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
uint8_t *return_value = m_default_mm_ap->allocateCodeSection(Size, Alignment, SectionID, SectionName);
|
|
|
|
m_parent.m_records.push_back(AllocationRecord((uintptr_t)return_value,
|
|
lldb::ePermissionsReadable | lldb::ePermissionsExecutable,
|
|
GetSectionTypeFromSectionName (SectionName, AllocationKind::Code),
|
|
Size,
|
|
Alignment,
|
|
SectionID,
|
|
SectionName.str().c_str()));
|
|
|
|
if (log)
|
|
{
|
|
log->Printf("IRExecutionUnit::allocateCodeSection(Size=0x%" PRIx64 ", Alignment=%u, SectionID=%u) = %p",
|
|
(uint64_t)Size, Alignment, SectionID, (void *)return_value);
|
|
}
|
|
|
|
return return_value;
|
|
}
|
|
|
|
uint8_t *
|
|
IRExecutionUnit::MemoryManager::allocateDataSection(uintptr_t Size,
|
|
unsigned Alignment,
|
|
unsigned SectionID,
|
|
llvm::StringRef SectionName,
|
|
bool IsReadOnly)
|
|
{
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
uint8_t *return_value = m_default_mm_ap->allocateDataSection(Size, Alignment, SectionID, SectionName, IsReadOnly);
|
|
|
|
uint32_t permissions = lldb::ePermissionsReadable;
|
|
if (!IsReadOnly)
|
|
permissions |= lldb::ePermissionsWritable;
|
|
m_parent.m_records.push_back(AllocationRecord((uintptr_t)return_value,
|
|
permissions,
|
|
GetSectionTypeFromSectionName (SectionName, AllocationKind::Data),
|
|
Size,
|
|
Alignment,
|
|
SectionID,
|
|
SectionName.str().c_str()));
|
|
if (log)
|
|
{
|
|
log->Printf("IRExecutionUnit::allocateDataSection(Size=0x%" PRIx64 ", Alignment=%u, SectionID=%u) = %p",
|
|
(uint64_t)Size, Alignment, SectionID, (void *)return_value);
|
|
}
|
|
|
|
return return_value;
|
|
}
|
|
|
|
uint64_t
|
|
IRExecutionUnit::MemoryManager::getSymbolAddress(const std::string &Name)
|
|
{
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
SymbolContextList sc_list;
|
|
|
|
ExecutionContextScope *exe_scope = m_parent.GetBestExecutionContextScope();
|
|
|
|
lldb::TargetSP target_sp = exe_scope->CalculateTarget();
|
|
|
|
const char *name = Name.c_str();
|
|
|
|
ConstString bare_name_cs(name);
|
|
ConstString name_cs;
|
|
|
|
if (name[0] == '_')
|
|
name_cs = ConstString(name + 1);
|
|
|
|
if (!target_sp)
|
|
{
|
|
if (log)
|
|
log->Printf("IRExecutionUnit::getSymbolAddress(Name=\"%s\") = <no target>",
|
|
Name.c_str());
|
|
|
|
m_parent.ReportSymbolLookupError(name_cs);
|
|
|
|
return 0xbad0bad0;
|
|
}
|
|
|
|
uint32_t num_matches = 0;
|
|
lldb::ProcessSP process_sp = exe_scope->CalculateProcess();
|
|
|
|
if (!name_cs.IsEmpty())
|
|
{
|
|
target_sp->GetImages().FindSymbolsWithNameAndType(name_cs, lldb::eSymbolTypeAny, sc_list);
|
|
num_matches = sc_list.GetSize();
|
|
}
|
|
|
|
if (!num_matches)
|
|
{
|
|
target_sp->GetImages().FindSymbolsWithNameAndType(bare_name_cs, lldb::eSymbolTypeAny, sc_list);
|
|
num_matches = sc_list.GetSize();
|
|
}
|
|
|
|
lldb::addr_t symbol_load_addr = LLDB_INVALID_ADDRESS;
|
|
|
|
for (uint32_t i=0; i<num_matches && (symbol_load_addr == 0 || symbol_load_addr == LLDB_INVALID_ADDRESS); i++)
|
|
{
|
|
SymbolContext sym_ctx;
|
|
sc_list.GetContextAtIndex(i, sym_ctx);
|
|
|
|
symbol_load_addr = sym_ctx.symbol->ResolveCallableAddress(*target_sp);
|
|
|
|
if (symbol_load_addr == LLDB_INVALID_ADDRESS)
|
|
symbol_load_addr = sym_ctx.symbol->GetAddress().GetLoadAddress(target_sp.get());
|
|
}
|
|
|
|
if (symbol_load_addr == LLDB_INVALID_ADDRESS && process_sp && name_cs)
|
|
{
|
|
// Try the Objective-C language runtime.
|
|
|
|
ObjCLanguageRuntime *runtime = process_sp->GetObjCLanguageRuntime();
|
|
|
|
if (runtime)
|
|
symbol_load_addr = runtime->LookupRuntimeSymbol(name_cs);
|
|
}
|
|
|
|
if (symbol_load_addr == LLDB_INVALID_ADDRESS)
|
|
{
|
|
if (log)
|
|
log->Printf("IRExecutionUnit::getSymbolAddress(Name=\"%s\") = <not found>",
|
|
name);
|
|
|
|
m_parent.ReportSymbolLookupError(bare_name_cs);
|
|
|
|
return 0xbad0bad0;
|
|
}
|
|
|
|
if (log)
|
|
log->Printf("IRExecutionUnit::getSymbolAddress(Name=\"%s\") = %" PRIx64,
|
|
name,
|
|
symbol_load_addr);
|
|
|
|
if (symbol_load_addr == 0)
|
|
return 0xbad00add;
|
|
|
|
return symbol_load_addr;
|
|
}
|
|
|
|
void *
|
|
IRExecutionUnit::MemoryManager::getPointerToNamedFunction(const std::string &Name,
|
|
bool AbortOnFailure) {
|
|
assert (sizeof(void *) == 8);
|
|
|
|
return (void*)getSymbolAddress(Name);
|
|
}
|
|
|
|
lldb::addr_t
|
|
IRExecutionUnit::GetRemoteAddressForLocal (lldb::addr_t local_address)
|
|
{
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
for (AllocationRecord &record : m_records)
|
|
{
|
|
if (local_address >= record.m_host_address &&
|
|
local_address < record.m_host_address + record.m_size)
|
|
{
|
|
if (record.m_process_address == LLDB_INVALID_ADDRESS)
|
|
return LLDB_INVALID_ADDRESS;
|
|
|
|
lldb::addr_t ret = record.m_process_address + (local_address - record.m_host_address);
|
|
|
|
if (log)
|
|
{
|
|
log->Printf("IRExecutionUnit::GetRemoteAddressForLocal() found 0x%" PRIx64 " in [0x%" PRIx64 "..0x%" PRIx64 "], and returned 0x%" PRIx64 " from [0x%" PRIx64 "..0x%" PRIx64 "].",
|
|
local_address,
|
|
(uint64_t)record.m_host_address,
|
|
(uint64_t)record.m_host_address + (uint64_t)record.m_size,
|
|
ret,
|
|
record.m_process_address,
|
|
record.m_process_address + record.m_size);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return LLDB_INVALID_ADDRESS;
|
|
}
|
|
|
|
IRExecutionUnit::AddrRange
|
|
IRExecutionUnit::GetRemoteRangeForLocal (lldb::addr_t local_address)
|
|
{
|
|
for (AllocationRecord &record : m_records)
|
|
{
|
|
if (local_address >= record.m_host_address &&
|
|
local_address < record.m_host_address + record.m_size)
|
|
{
|
|
if (record.m_process_address == LLDB_INVALID_ADDRESS)
|
|
return AddrRange(0, 0);
|
|
|
|
return AddrRange(record.m_process_address, record.m_size);
|
|
}
|
|
}
|
|
|
|
return AddrRange (0, 0);
|
|
}
|
|
|
|
bool
|
|
IRExecutionUnit::CommitAllocations (lldb::ProcessSP &process_sp)
|
|
{
|
|
bool ret = true;
|
|
|
|
lldb_private::Error err;
|
|
|
|
for (AllocationRecord &record : m_records)
|
|
{
|
|
if (record.m_process_address != LLDB_INVALID_ADDRESS)
|
|
continue;
|
|
|
|
switch (record.m_sect_type)
|
|
{
|
|
case lldb::eSectionTypeInvalid:
|
|
case lldb::eSectionTypeDWARFDebugAbbrev:
|
|
case lldb::eSectionTypeDWARFDebugAddr:
|
|
case lldb::eSectionTypeDWARFDebugAranges:
|
|
case lldb::eSectionTypeDWARFDebugFrame:
|
|
case lldb::eSectionTypeDWARFDebugInfo:
|
|
case lldb::eSectionTypeDWARFDebugLine:
|
|
case lldb::eSectionTypeDWARFDebugLoc:
|
|
case lldb::eSectionTypeDWARFDebugMacInfo:
|
|
case lldb::eSectionTypeDWARFDebugPubNames:
|
|
case lldb::eSectionTypeDWARFDebugPubTypes:
|
|
case lldb::eSectionTypeDWARFDebugRanges:
|
|
case lldb::eSectionTypeDWARFDebugStr:
|
|
case lldb::eSectionTypeDWARFDebugStrOffsets:
|
|
case lldb::eSectionTypeDWARFAppleNames:
|
|
case lldb::eSectionTypeDWARFAppleTypes:
|
|
case lldb::eSectionTypeDWARFAppleNamespaces:
|
|
case lldb::eSectionTypeDWARFAppleObjC:
|
|
err.Clear();
|
|
break;
|
|
default:
|
|
record.m_process_address = Malloc (record.m_size,
|
|
record.m_alignment,
|
|
record.m_permissions,
|
|
eAllocationPolicyProcessOnly,
|
|
err);
|
|
break;
|
|
}
|
|
|
|
if (!err.Success())
|
|
{
|
|
ret = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!ret)
|
|
{
|
|
for (AllocationRecord &record : m_records)
|
|
{
|
|
if (record.m_process_address != LLDB_INVALID_ADDRESS)
|
|
{
|
|
Free(record.m_process_address, err);
|
|
record.m_process_address = LLDB_INVALID_ADDRESS;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
IRExecutionUnit::ReportAllocations (llvm::ExecutionEngine &engine)
|
|
{
|
|
for (AllocationRecord &record : m_records)
|
|
{
|
|
if (record.m_process_address == LLDB_INVALID_ADDRESS)
|
|
continue;
|
|
|
|
if (record.m_section_id == eSectionIDInvalid)
|
|
continue;
|
|
|
|
engine.mapSectionAddress((void*)record.m_host_address, record.m_process_address);
|
|
}
|
|
|
|
// Trigger re-application of relocations.
|
|
engine.finalizeObject();
|
|
}
|
|
|
|
bool
|
|
IRExecutionUnit::WriteData (lldb::ProcessSP &process_sp)
|
|
{
|
|
bool wrote_something = false;
|
|
for (AllocationRecord &record : m_records)
|
|
{
|
|
if (record.m_process_address != LLDB_INVALID_ADDRESS)
|
|
{
|
|
lldb_private::Error err;
|
|
WriteMemory (record.m_process_address, (uint8_t*)record.m_host_address, record.m_size, err);
|
|
if (err.Success())
|
|
wrote_something = true;
|
|
}
|
|
}
|
|
return wrote_something;
|
|
}
|
|
|
|
void
|
|
IRExecutionUnit::AllocationRecord::dump (Log *log)
|
|
{
|
|
if (!log)
|
|
return;
|
|
|
|
log->Printf("[0x%llx+0x%llx]->0x%llx (alignment %d, section ID %d)",
|
|
(unsigned long long)m_host_address,
|
|
(unsigned long long)m_size,
|
|
(unsigned long long)m_process_address,
|
|
(unsigned)m_alignment,
|
|
(unsigned)m_section_id);
|
|
}
|
|
|
|
|
|
lldb::ByteOrder
|
|
IRExecutionUnit::GetByteOrder () const
|
|
{
|
|
ExecutionContext exe_ctx (GetBestExecutionContextScope());
|
|
return exe_ctx.GetByteOrder();
|
|
}
|
|
|
|
uint32_t
|
|
IRExecutionUnit::GetAddressByteSize () const
|
|
{
|
|
ExecutionContext exe_ctx (GetBestExecutionContextScope());
|
|
return exe_ctx.GetAddressByteSize();
|
|
}
|
|
|
|
void
|
|
IRExecutionUnit::PopulateSymtab (lldb_private::ObjectFile *obj_file,
|
|
lldb_private::Symtab &symtab)
|
|
{
|
|
// No symbols yet...
|
|
}
|
|
|
|
|
|
void
|
|
IRExecutionUnit::PopulateSectionList (lldb_private::ObjectFile *obj_file,
|
|
lldb_private::SectionList §ion_list)
|
|
{
|
|
for (AllocationRecord &record : m_records)
|
|
{
|
|
if (record.m_size > 0)
|
|
{
|
|
lldb::SectionSP section_sp (new lldb_private::Section (obj_file->GetModule(),
|
|
obj_file,
|
|
record.m_section_id,
|
|
ConstString(record.m_name),
|
|
record.m_sect_type,
|
|
record.m_process_address,
|
|
record.m_size,
|
|
record.m_host_address, // file_offset (which is the host address for the data)
|
|
record.m_size, // file_size
|
|
0,
|
|
record.m_permissions)); // flags
|
|
section_list.AddSection (section_sp);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool
|
|
IRExecutionUnit::GetArchitecture (lldb_private::ArchSpec &arch)
|
|
{
|
|
ExecutionContext exe_ctx (GetBestExecutionContextScope());
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (target)
|
|
arch = target->GetArchitecture();
|
|
else
|
|
arch.Clear();
|
|
return arch.IsValid();
|
|
}
|
|
|
|
lldb::ModuleSP
|
|
IRExecutionUnit::GetJITModule ()
|
|
{
|
|
ExecutionContext exe_ctx (GetBestExecutionContextScope());
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (target)
|
|
{
|
|
lldb::ModuleSP jit_module_sp = lldb_private::Module::CreateJITModule (std::static_pointer_cast<lldb_private::ObjectFileJITDelegate>(shared_from_this()));
|
|
if (jit_module_sp)
|
|
{
|
|
bool changed = false;
|
|
jit_module_sp->SetLoadAddress(*target, 0, true, changed);
|
|
}
|
|
return jit_module_sp;
|
|
}
|
|
return lldb::ModuleSP();
|
|
}
|