UnwindAssemblyInstEmulation.cpp revision 3063c95c54ac0303287c34f9f5af7ba7b6b8f0bc
1f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton//===-- UnwindAssemblyInstEmulation.cpp --------------------------*- C++ -*-===// 2f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton// 3f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton// The LLVM Compiler Infrastructure 4f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton// 5f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton// This file is distributed under the University of Illinois Open Source 6f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton// License. See LICENSE.TXT for details. 7f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton// 8f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton//===----------------------------------------------------------------------===// 9f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 10f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton#include "UnwindAssemblyInstEmulation.h" 11f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 12f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton#include "llvm-c/EnhancedDisassembly.h" 13f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 14f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton#include "lldb/Core/Address.h" 15f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton#include "lldb/Core/ArchSpec.h" 16888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton#include "lldb/Core/DataBufferHeap.h" 17888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton#include "lldb/Core/Disassembler.h" 18888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton#include "lldb/Core/Error.h" 19f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton#include "lldb/Core/PluginManager.h" 20888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton#include "lldb/Core/StreamFile.h" 21f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton#include "lldb/Target/ExecutionContext.h" 22f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton#include "lldb/Target/Process.h" 23f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton#include "lldb/Target/Thread.h" 24f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton#include "lldb/Target/Target.h" 25f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 26f6e287a873007543f3b419a71546ab8f007be90bGreg Claytonusing namespace lldb; 27f6e287a873007543f3b419a71546ab8f007be90bGreg Claytonusing namespace lldb_private; 28f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 29f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 30f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 31f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton//----------------------------------------------------------------------------------------------- 32f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton// UnwindAssemblyParser_x86 method definitions 33f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton//----------------------------------------------------------------------------------------------- 34f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 35f6e287a873007543f3b419a71546ab8f007be90bGreg Claytonbool 36888a7334344778d1a4edbd58b5852ae4d53ffed9Greg ClaytonUnwindAssemblyInstEmulation::GetNonCallSiteUnwindPlanFromAssembly (AddressRange& range, 37888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton Thread& thread, 38888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton UnwindPlan& unwind_plan) 39f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton{ 40888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton#if 0 41888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton UnwindPlan::Row row; 42888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton UnwindPlan::Row::RegisterLocation regloc; 43888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 44888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton m_unwind_plan_sp->SetRegisterKind (eRegisterKindGeneric); 45888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton row.SetCFARegister (LLDB_REGNUM_GENERIC_FP); 46888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton row.SetCFAOffset (2 * 8); 47888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton row.SetOffset (0); 48888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 49888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton regloc.SetAtCFAPlusOffset (2 * -8); 50888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton row.SetRegisterInfo (LLDB_REGNUM_GENERIC_FP, regloc); 51888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton regloc.SetAtCFAPlusOffset (1 * -8); 52888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton row.SetRegisterInfo (LLDB_REGNUM_GENERIC_PC, regloc); 53888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton regloc.SetIsCFAPlusOffset (0); 54888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton row.SetRegisterInfo (LLDB_REGNUM_GENERIC_SP, regloc); 55888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 56888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton m_unwind_plan_sp->AppendRow (row); 57888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton m_unwind_plan_sp->SetSourceName ("x86_64 architectural default"); 58888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton#endif 59888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 60888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton if (range.GetByteSize() > 0 && 61888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton range.GetBaseAddress().IsValid() && 62888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton m_inst_emulator_ap.get()) 63888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton { 64888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton#if 0 65888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton Target &target = thread.GetProcess().GetTarget(); 66888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton const ArchSpec &target_arch = target.GetArchitecture(); 67888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton bool prefer_file_cache = true; 68888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton Error error; 69888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton DataBufferHeap data_buffer (range.GetByteSize(), 0); 70888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton if (target.ReadMemory (range.GetBaseAddress(), 71888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton prefer_file_cache, 72888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton data_buffer.GetBytes(), 73888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton data_buffer.GetByteSize(), 74888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton error) == data_buffer.GetByteSize()) 75888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton { 76888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton DataExtractor data (data_buffer.GetBytes(), 77888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton data_buffer.GetByteSize(), 78888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton target_arch.GetByteOrder(), 79888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton target_arch.GetAddressByteSize()); 80888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton } 81888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton#endif 82888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton StreamFile strm (stdout, false); 83888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 84888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton ExecutionContext exe_ctx; 85888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton thread.CalculateExecutionContext(exe_ctx); 86888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton DisassemblerSP disasm_sp (Disassembler::DisassembleRange (m_arch, 87888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton NULL, 88888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton exe_ctx, 89888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton range)); 90888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton if (disasm_sp) 91888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton { 92888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 93888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton m_range_ptr = ⦥ 94888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton m_thread_ptr = &thread; 95888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton m_unwind_plan_ptr = &unwind_plan; 96888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 97888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton const uint32_t addr_byte_size = m_arch.GetAddressByteSize(); 98888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton const bool show_address = true; 99888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton const bool show_bytes = true; 100888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton const bool raw = false; 101888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton // Initialize the stack pointer with a known value. In the 32 bit case 102888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton // it will be 0x80000000, and in the 64 bit case 0x8000000000000000. 103888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton // We use the address byte size to be safe for any future addresss sizes 104c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton RegisterInfo sp_reg_info; 105c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton m_inst_emulator_ap->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP, sp_reg_info); 106c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton SetRegisterValue(sp_reg_info, (1ull << ((addr_byte_size * 8) - 1))); 107888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 108888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton const InstructionList &inst_list = disasm_sp->GetInstructionList (); 109888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton const size_t num_instructions = inst_list.GetSize(); 1103063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton if (num_instructions > 0) 111888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton { 1123063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton Instruction *inst = inst_list.GetInstructionAtIndex (0).get(); 1133063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton const addr_t base_addr = inst->GetAddress().GetFileAddress(); 114888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 1153063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton for (size_t idx=0; idx<num_instructions; ++idx) 1163063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton { 1173063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton inst = inst_list.GetInstructionAtIndex (idx).get(); 1183063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton if (inst) 1193063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton { 1203063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton m_curr_row.Clear(); 1213063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton inst->Dump(&strm, inst_list.GetMaxOpcocdeByteSize (), show_address, show_bytes, &exe_ctx, raw); 1223063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton strm.EOL(); 1233063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton 1243063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton m_inst_emulator_ap->SetInstruction (inst->GetOpcode(), 1253063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton inst->GetAddress(), 1263063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton exe_ctx.target); 1273063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton m_curr_row.SetOffset (inst->GetAddress().GetFileAddress() + inst->GetOpcode().GetByteSize() - base_addr); 1283063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton 1293063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton m_inst_emulator_ap->EvaluateInstruction (eEmulateInstructionOptionIgnoreConditions); 1303063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton } 131888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton } 132888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton } 133888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton } 134888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton } 135f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton return false; 136f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton} 137f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 138f6e287a873007543f3b419a71546ab8f007be90bGreg Claytonbool 139888a7334344778d1a4edbd58b5852ae4d53ffed9Greg ClaytonUnwindAssemblyInstEmulation::GetFastUnwindPlan (AddressRange& func, 140888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton Thread& thread, 141888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton UnwindPlan &unwind_plan) 142f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton{ 143f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton return false; 144f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton} 145f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 146f6e287a873007543f3b419a71546ab8f007be90bGreg Claytonbool 147888a7334344778d1a4edbd58b5852ae4d53ffed9Greg ClaytonUnwindAssemblyInstEmulation::FirstNonPrologueInsn (AddressRange& func, 148888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton Target& target, 149888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton Thread* thread, 150888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton Address& first_non_prologue_insn) 151f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton{ 152f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton return false; 153f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton} 154f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 1558badcb2503ed2e2884a48f66099c1d48494817f4Greg ClaytonUnwindAssembly * 156f6e287a873007543f3b419a71546ab8f007be90bGreg ClaytonUnwindAssemblyInstEmulation::CreateInstance (const ArchSpec &arch) 157f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton{ 158888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton std::auto_ptr<lldb_private::EmulateInstruction> inst_emulator_ap (EmulateInstruction::FindPlugin (arch, eInstructionTypePrologueEpilogue, NULL)); 159888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton // Make sure that all prologue instructions are handled 160888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton if (inst_emulator_ap.get()) 161888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton return new UnwindAssemblyInstEmulation (arch, inst_emulator_ap.release()); 162f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton return NULL; 163f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton} 164f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 165f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 166f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton//------------------------------------------------------------------ 167f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton// PluginInterface protocol in UnwindAssemblyParser_x86 168f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton//------------------------------------------------------------------ 169f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 170f6e287a873007543f3b419a71546ab8f007be90bGreg Claytonconst char * 171f6e287a873007543f3b419a71546ab8f007be90bGreg ClaytonUnwindAssemblyInstEmulation::GetPluginName() 172f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton{ 173f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton return "UnwindAssemblyInstEmulation"; 174f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton} 175f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 176f6e287a873007543f3b419a71546ab8f007be90bGreg Claytonconst char * 177f6e287a873007543f3b419a71546ab8f007be90bGreg ClaytonUnwindAssemblyInstEmulation::GetShortPluginName() 178f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton{ 179f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton return "unwindassembly.inst-emulation"; 180f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton} 181f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 182f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 183f6e287a873007543f3b419a71546ab8f007be90bGreg Claytonuint32_t 184f6e287a873007543f3b419a71546ab8f007be90bGreg ClaytonUnwindAssemblyInstEmulation::GetPluginVersion() 185f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton{ 186f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton return 1; 187f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton} 188f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 189f6e287a873007543f3b419a71546ab8f007be90bGreg Claytonvoid 190f6e287a873007543f3b419a71546ab8f007be90bGreg ClaytonUnwindAssemblyInstEmulation::Initialize() 191f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton{ 192f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton PluginManager::RegisterPlugin (GetPluginNameStatic(), 193f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton GetPluginDescriptionStatic(), 194f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton CreateInstance); 195f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton} 196f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 197f6e287a873007543f3b419a71546ab8f007be90bGreg Claytonvoid 198f6e287a873007543f3b419a71546ab8f007be90bGreg ClaytonUnwindAssemblyInstEmulation::Terminate() 199f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton{ 200f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton PluginManager::UnregisterPlugin (CreateInstance); 201f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton} 202f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 203f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 204f6e287a873007543f3b419a71546ab8f007be90bGreg Claytonconst char * 205f6e287a873007543f3b419a71546ab8f007be90bGreg ClaytonUnwindAssemblyInstEmulation::GetPluginNameStatic() 206f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton{ 207f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton return "UnwindAssemblyInstEmulation"; 208f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton} 209f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton 210f6e287a873007543f3b419a71546ab8f007be90bGreg Claytonconst char * 211f6e287a873007543f3b419a71546ab8f007be90bGreg ClaytonUnwindAssemblyInstEmulation::GetPluginDescriptionStatic() 212f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton{ 213f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton return "Instruction emulation based unwind information."; 214f6e287a873007543f3b419a71546ab8f007be90bGreg Clayton} 215888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 216888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 217c07d451bb046e47215bd73fda0235362cc6b1a47Greg Claytonuint64_t 218c07d451bb046e47215bd73fda0235362cc6b1a47Greg ClaytonUnwindAssemblyInstEmulation::MakeRegisterKindValuePair (const lldb_private::RegisterInfo ®_info) 219c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton{ 220c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton uint32_t reg_kind, reg_num; 221c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton if (EmulateInstruction::GetBestRegisterKindAndNumber (reg_info, reg_kind, reg_num)) 222c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton return (uint64_t)reg_kind << 24 | reg_num; 223c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton return 0ull; 224c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton} 225c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton 226c07d451bb046e47215bd73fda0235362cc6b1a47Greg Claytonvoid 227c07d451bb046e47215bd73fda0235362cc6b1a47Greg ClaytonUnwindAssemblyInstEmulation::SetRegisterValue (const lldb_private::RegisterInfo ®_info, uint64_t reg_value) 228c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton{ 229c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton m_register_values[MakeRegisterKindValuePair (reg_info)] = reg_value; 230c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton} 231c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton 232c07d451bb046e47215bd73fda0235362cc6b1a47Greg Claytonuint64_t 233c07d451bb046e47215bd73fda0235362cc6b1a47Greg ClaytonUnwindAssemblyInstEmulation::GetRegisterValue (const lldb_private::RegisterInfo ®_info) 234c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton{ 235c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton const uint64_t reg_id = MakeRegisterKindValuePair (reg_info); 236c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton RegisterValueMap::const_iterator pos = m_register_values.find(reg_id); 237c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton if (pos != m_register_values.end()) 238c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton return pos->second; 239c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton return MakeRegisterKindValuePair (reg_info); 240c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton} 241c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton 242888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 243888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Claytonsize_t 244888a7334344778d1a4edbd58b5852ae4d53ffed9Greg ClaytonUnwindAssemblyInstEmulation::ReadMemory (EmulateInstruction *instruction, 245888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton void *baton, 246888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton const EmulateInstruction::Context &context, 247888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton lldb::addr_t addr, 248888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton void *dst, 249888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton size_t dst_len) 250888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton{ 251888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton //UnwindAssemblyInstEmulation *inst_emulator = (UnwindAssemblyInstEmulation *)baton; 252c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton printf ("UnwindAssemblyInstEmulation::ReadMemory (addr = 0x%16.16llx, dst = %p, dst_len = %zu, context = ", 253888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton addr, 254888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton dst, 255888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton dst_len); 256c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton context.Dump(stdout, instruction); 257888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton return dst_len; 258888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton} 259888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 260888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Claytonsize_t 261888a7334344778d1a4edbd58b5852ae4d53ffed9Greg ClaytonUnwindAssemblyInstEmulation::WriteMemory (EmulateInstruction *instruction, 262888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton void *baton, 263888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton const EmulateInstruction::Context &context, 264888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton lldb::addr_t addr, 265888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton const void *dst, 266888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton size_t dst_len) 267888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton{ 2683063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton UnwindAssemblyInstEmulation *inst_emulator = (UnwindAssemblyInstEmulation *)baton; 269888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 270888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton DataExtractor data (dst, 271888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton dst_len, 272888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton instruction->GetArchitecture ().GetByteOrder(), 273888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton instruction->GetArchitecture ().GetAddressByteSize()); 274888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton StreamFile strm(stdout, false); 275888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 276c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton strm.PutCString ("UnwindAssemblyInstEmulation::WriteMemory ("); 277888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton data.Dump(&strm, 0, eFormatBytes, 1, dst_len, UINT32_MAX, addr, 0, 0); 278c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton strm.PutCString (", context = "); 279c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton context.Dump(stdout, instruction); 2803063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton 2813063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton switch (context.type) 2823063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton { 2833063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextInvalid: 2843063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextReadOpcode: 2853063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextImmediate: 2863063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextAdjustBaseRegister: 2873063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextRegisterPlusOffset: 2883063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextAdjustPC: 2893063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextRegisterStore: 2903063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextRegisterLoad: 2913063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextRelativeBranchImmediate: 2923063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextAbsoluteBranchRegister: 2933063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextSupervisorCall: 2943063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextTableBranchReadMemory: 2953063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextWriteRegisterRandomBits: 2963063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextWriteMemoryRandomBits: 2973063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextArithmetic: 2983063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextAdvancePC: 2993063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextReturnFromException: 3003063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextPopRegisterOffStack: 3013063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextAdjustStackPointer: 3023063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton break; 3033063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton 3043063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eContextPushRegisterOnStack: 3053063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton switch (context.info_type) 3063063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton { 3073063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eInfoTypeRegisterToRegisterPlusOffset: 3083063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton { 3093063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton UnwindPlan::Row::RegisterLocation regloc; 3103063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton const uint32_t dwarf_reg_num = context.info.RegisterToRegisterPlusOffset.data_reg.kinds[eRegisterKindDWARF]; 3113063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton const addr_t reg_cfa_offset = inst_emulator->m_curr_row.GetCFAOffset() + context.info.RegisterToRegisterPlusOffset.offset; 3123063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton regloc.SetIsCFAPlusOffset (reg_cfa_offset); 3133063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton inst_emulator->m_curr_row.SetRegisterInfo (dwarf_reg_num, regloc); 3143063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton } 3153063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton break; 3163063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton 3173063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton default: 3183063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton assert (!"unhandled case, add code to handle this!"); 3193063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton break; 3203063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton } 3213063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton break; 3223063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton 3233063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton break; 3243063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton 3253063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton } 3263063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton 327888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton return dst_len; 328888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton} 329888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 330888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Claytonbool 331888a7334344778d1a4edbd58b5852ae4d53ffed9Greg ClaytonUnwindAssemblyInstEmulation::ReadRegister (EmulateInstruction *instruction, 332888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton void *baton, 333c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton const RegisterInfo ®_info, 334888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton uint64_t ®_value) 335888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton{ 336888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton UnwindAssemblyInstEmulation *inst_emulator = (UnwindAssemblyInstEmulation *)baton; 337c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton reg_value = inst_emulator->GetRegisterValue (reg_info); 338888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 339c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton printf ("UnwindAssemblyInstEmulation::ReadRegister (name = \"%s\") => value = 0x%16.16llx\n", reg_info.name, reg_value); 340888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 341888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton return true; 342888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton} 343888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 344888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Claytonbool 345888a7334344778d1a4edbd58b5852ae4d53ffed9Greg ClaytonUnwindAssemblyInstEmulation::WriteRegister (EmulateInstruction *instruction, 346888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton void *baton, 347888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton const EmulateInstruction::Context &context, 348c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton const RegisterInfo ®_info, 349888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton uint64_t reg_value) 350888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton{ 351888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton UnwindAssemblyInstEmulation *inst_emulator = (UnwindAssemblyInstEmulation *)baton; 352888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 353c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton printf ("UnwindAssemblyInstEmulation::WriteRegister (name = \"%s\", value = 0x%16.16llx, context =", 354c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton reg_info.name, 355c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton reg_value); 356c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton context.Dump(stdout, instruction); 357c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton 358c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton inst_emulator->SetRegisterValue (reg_info, reg_value); 359888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 360888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton switch (context.type) 361888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton { 362888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextInvalid: 363888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextReadOpcode: 364888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextImmediate: 365888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextAdjustBaseRegister: 366888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextRegisterPlusOffset: 367888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextAdjustPC: 368888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextRegisterStore: 369888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextRegisterLoad: 370888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextRelativeBranchImmediate: 371888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextAbsoluteBranchRegister: 372888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextSupervisorCall: 373888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextTableBranchReadMemory: 374888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextWriteRegisterRandomBits: 375888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextWriteMemoryRandomBits: 376c07d451bb046e47215bd73fda0235362cc6b1a47Greg Clayton case EmulateInstruction::eContextArithmetic: 377888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextAdvancePC: 378888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextReturnFromException: 379888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextPushRegisterOnStack: 380888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton break; 3813063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton 382888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextPopRegisterOffStack: 3833063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton { 3843063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton switch (context.info_type) 3853063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton { 3863063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eInfoTypeRegisterPlusOffset: 3873063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton { 3883063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton const uint32_t dwarf_reg_num = reg_info.kinds[eRegisterKindDWARF]; 3893063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton UnwindPlan::Row::RegisterLocation regloc; 3903063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton regloc.SetSame(); 3913063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton inst_emulator->m_curr_row.SetRegisterInfo (dwarf_reg_num, regloc); 3923063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton } 3933063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton break; 3943063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton 3953063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton default: 3963063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton assert (!"unhandled case, add code to handle this!"); 3973063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton break; 3983063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton } 3993063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton } 400888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton break; 401888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 402888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton case EmulateInstruction::eContextAdjustStackPointer: 4033063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton switch (context.info_type) 4043063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton { 4053063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton case EmulateInstruction::eInfoTypeImmediateSigned: 4063063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton inst_emulator->m_curr_row.SetCFAOffset (inst_emulator->m_curr_row.GetCFAOffset() + context.info.signed_immediate); 4073063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton break; 4083063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton 4093063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton default: 4103063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton assert (!"unhandled case, add code to handle this!"); 4113063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton break; 4123063c95c54ac0303287c34f9f5af7ba7b6b8f0bcGreg Clayton } 413888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton break; 414888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton } 415888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton return true; 416888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton} 417888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 418888a7334344778d1a4edbd58b5852ae4d53ffed9Greg Clayton 419