| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <inttypes.h> |
| #include <stdint.h> |
| |
| #include <string> |
| #include <type_traits> |
| #include <vector> |
| |
| #include <android-base/macros.h> |
| #include <android-base/stringprintf.h> |
| |
| #include <unwindstack/DwarfError.h> |
| #include <unwindstack/DwarfLocation.h> |
| #include <unwindstack/Log.h> |
| |
| #include "DwarfCfa.h" |
| #include "DwarfEncoding.h" |
| #include "DwarfOp.h" |
| |
| namespace unwindstack { |
| |
| template <typename AddressType> |
| constexpr typename DwarfCfa<AddressType>::process_func DwarfCfa<AddressType>::kCallbackTable[64]; |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::GetLocationInfo(uint64_t pc, uint64_t start_offset, uint64_t end_offset, |
| dwarf_loc_regs_t* loc_regs) { |
| if (cie_loc_regs_ != nullptr) { |
| for (const auto& entry : *cie_loc_regs_) { |
| (*loc_regs)[entry.first] = entry.second; |
| } |
| } |
| last_error_.code = DWARF_ERROR_NONE; |
| last_error_.address = 0; |
| |
| memory_->set_cur_offset(start_offset); |
| uint64_t cfa_offset; |
| cur_pc_ = fde_->pc_start; |
| loc_regs->pc_start = cur_pc_; |
| while (true) { |
| if (cur_pc_ > pc) { |
| loc_regs->pc_end = cur_pc_; |
| return true; |
| } |
| if ((cfa_offset = memory_->cur_offset()) >= end_offset) { |
| loc_regs->pc_end = fde_->pc_end; |
| return true; |
| } |
| loc_regs->pc_start = cur_pc_; |
| operands_.clear(); |
| // Read the cfa information. |
| uint8_t cfa_value; |
| if (!memory_->ReadBytes(&cfa_value, 1)) { |
| last_error_.code = DWARF_ERROR_MEMORY_INVALID; |
| last_error_.address = memory_->cur_offset(); |
| return false; |
| } |
| uint8_t cfa_low = cfa_value & 0x3f; |
| // Check the 2 high bits. |
| switch (cfa_value >> 6) { |
| case 1: |
| cur_pc_ += cfa_low * fde_->cie->code_alignment_factor; |
| break; |
| case 2: { |
| uint64_t offset; |
| if (!memory_->ReadULEB128(&offset)) { |
| last_error_.code = DWARF_ERROR_MEMORY_INVALID; |
| last_error_.address = memory_->cur_offset(); |
| return false; |
| } |
| SignedType signed_offset = |
| static_cast<SignedType>(offset) * fde_->cie->data_alignment_factor; |
| (*loc_regs)[cfa_low] = {.type = DWARF_LOCATION_OFFSET, |
| .values = {static_cast<uint64_t>(signed_offset)}}; |
| break; |
| } |
| case 3: { |
| if (cie_loc_regs_ == nullptr) { |
| log(0, "restore while processing cie"); |
| last_error_.code = DWARF_ERROR_ILLEGAL_STATE; |
| return false; |
| } |
| |
| auto reg_entry = cie_loc_regs_->find(cfa_low); |
| if (reg_entry == cie_loc_regs_->end()) { |
| loc_regs->erase(cfa_low); |
| } else { |
| (*loc_regs)[cfa_low] = reg_entry->second; |
| } |
| break; |
| } |
| case 0: { |
| const auto handle_func = DwarfCfa<AddressType>::kCallbackTable[cfa_low]; |
| if (handle_func == nullptr) { |
| last_error_.code = DWARF_ERROR_ILLEGAL_VALUE; |
| return false; |
| } |
| |
| const auto cfa = &DwarfCfaInfo::kTable[cfa_low]; |
| for (size_t i = 0; i < cfa->num_operands; i++) { |
| if (cfa->operands[i] == DW_EH_PE_block) { |
| uint64_t block_length; |
| if (!memory_->ReadULEB128(&block_length)) { |
| last_error_.code = DWARF_ERROR_MEMORY_INVALID; |
| last_error_.address = memory_->cur_offset(); |
| return false; |
| } |
| operands_.push_back(block_length); |
| memory_->set_cur_offset(memory_->cur_offset() + block_length); |
| continue; |
| } |
| uint64_t value; |
| if (!memory_->ReadEncodedValue<AddressType>(cfa->operands[i], &value)) { |
| last_error_.code = DWARF_ERROR_MEMORY_INVALID; |
| last_error_.address = memory_->cur_offset(); |
| return false; |
| } |
| operands_.push_back(value); |
| } |
| |
| if (!(this->*handle_func)(loc_regs)) { |
| return false; |
| } |
| break; |
| } |
| } |
| } |
| } |
| |
| template <typename AddressType> |
| std::string DwarfCfa<AddressType>::GetOperandString(uint8_t operand, uint64_t value, |
| uint64_t* cur_pc) { |
| std::string string; |
| switch (operand) { |
| case DwarfCfaInfo::DWARF_DISPLAY_REGISTER: |
| string = " register(" + std::to_string(value) + ")"; |
| break; |
| case DwarfCfaInfo::DWARF_DISPLAY_SIGNED_NUMBER: |
| string += " " + std::to_string(static_cast<SignedType>(value)); |
| break; |
| case DwarfCfaInfo::DWARF_DISPLAY_ADVANCE_LOC: |
| *cur_pc += value; |
| FALLTHROUGH_INTENDED; |
| // Fall through to log the value. |
| case DwarfCfaInfo::DWARF_DISPLAY_NUMBER: |
| string += " " + std::to_string(value); |
| break; |
| case DwarfCfaInfo::DWARF_DISPLAY_SET_LOC: |
| *cur_pc = value; |
| FALLTHROUGH_INTENDED; |
| // Fall through to log the value. |
| case DwarfCfaInfo::DWARF_DISPLAY_ADDRESS: |
| if (std::is_same<AddressType, uint32_t>::value) { |
| string += android::base::StringPrintf(" 0x%" PRIx32, static_cast<uint32_t>(value)); |
| } else { |
| string += android::base::StringPrintf(" 0x%" PRIx64, static_cast<uint64_t>(value)); |
| } |
| break; |
| default: |
| string = " unknown"; |
| } |
| return string; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::LogOffsetRegisterString(uint32_t indent, uint64_t cfa_offset, |
| uint8_t reg) { |
| uint64_t offset; |
| if (!memory_->ReadULEB128(&offset)) { |
| return false; |
| } |
| uint64_t end_offset = memory_->cur_offset(); |
| memory_->set_cur_offset(cfa_offset); |
| |
| std::string raw_data = "Raw Data:"; |
| for (uint64_t i = cfa_offset; i < end_offset; i++) { |
| uint8_t value; |
| if (!memory_->ReadBytes(&value, 1)) { |
| return false; |
| } |
| raw_data += android::base::StringPrintf(" 0x%02x", value); |
| } |
| log(indent, "DW_CFA_offset register(%d) %" PRId64, reg, offset); |
| log(indent, "%s", raw_data.c_str()); |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::LogInstruction(uint32_t indent, uint64_t cfa_offset, uint8_t op, |
| uint64_t* cur_pc) { |
| const auto* cfa = &DwarfCfaInfo::kTable[op]; |
| if (cfa->name[0] == '\0') { |
| log(indent, "Illegal"); |
| log(indent, "Raw Data: 0x%02x", op); |
| return true; |
| } |
| |
| std::string log_string(cfa->name); |
| std::vector<std::string> expression_lines; |
| for (size_t i = 0; i < cfa->num_operands; i++) { |
| if (cfa->operands[i] == DW_EH_PE_block) { |
| // This is a Dwarf Expression. |
| uint64_t end_offset; |
| if (!memory_->ReadULEB128(&end_offset)) { |
| return false; |
| } |
| log_string += " " + std::to_string(end_offset); |
| end_offset += memory_->cur_offset(); |
| |
| DwarfOp<AddressType> op(memory_, nullptr); |
| op.GetLogInfo(memory_->cur_offset(), end_offset, &expression_lines); |
| memory_->set_cur_offset(end_offset); |
| } else { |
| uint64_t value; |
| if (!memory_->ReadEncodedValue<AddressType>(cfa->operands[i], &value)) { |
| return false; |
| } |
| log_string += GetOperandString(cfa->display_operands[i], value, cur_pc); |
| } |
| } |
| log(indent, "%s", log_string.c_str()); |
| |
| // Get the raw bytes of the data. |
| uint64_t end_offset = memory_->cur_offset(); |
| memory_->set_cur_offset(cfa_offset); |
| std::string raw_data("Raw Data:"); |
| for (uint64_t i = 0; i < end_offset - cfa_offset; i++) { |
| uint8_t value; |
| if (!memory_->ReadBytes(&value, 1)) { |
| return false; |
| } |
| |
| // Only show 10 raw bytes per line. |
| if ((i % 10) == 0 && i != 0) { |
| log(indent, "%s", raw_data.c_str()); |
| raw_data.clear(); |
| } |
| if (raw_data.empty()) { |
| raw_data = "Raw Data:"; |
| } |
| raw_data += android::base::StringPrintf(" 0x%02x", value); |
| } |
| if (!raw_data.empty()) { |
| log(indent, "%s", raw_data.c_str()); |
| } |
| |
| // Log any of the expression data. |
| for (const auto& line : expression_lines) { |
| log(indent + 1, "%s", line.c_str()); |
| } |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::Log(uint32_t indent, uint64_t pc, uint64_t start_offset, |
| uint64_t end_offset) { |
| memory_->set_cur_offset(start_offset); |
| uint64_t cfa_offset; |
| uint64_t cur_pc = fde_->pc_start; |
| uint64_t old_pc = cur_pc; |
| while ((cfa_offset = memory_->cur_offset()) < end_offset && cur_pc <= pc) { |
| // Read the cfa information. |
| uint8_t cfa_value; |
| if (!memory_->ReadBytes(&cfa_value, 1)) { |
| return false; |
| } |
| |
| // Check the 2 high bits. |
| uint8_t cfa_low = cfa_value & 0x3f; |
| switch (cfa_value >> 6) { |
| case 0: |
| if (!LogInstruction(indent, cfa_offset, cfa_low, &cur_pc)) { |
| return false; |
| } |
| break; |
| case 1: |
| log(indent, "DW_CFA_advance_loc %d", cfa_low); |
| log(indent, "Raw Data: 0x%02x", cfa_value); |
| cur_pc += cfa_low * fde_->cie->code_alignment_factor; |
| break; |
| case 2: |
| if (!LogOffsetRegisterString(indent, cfa_offset, cfa_low)) { |
| return false; |
| } |
| break; |
| case 3: |
| log(indent, "DW_CFA_restore register(%d)", cfa_low); |
| log(indent, "Raw Data: 0x%02x", cfa_value); |
| break; |
| } |
| if (cur_pc != old_pc) { |
| log(0, ""); |
| log(indent, "PC 0x%" PRIx64, cur_pc); |
| } |
| old_pc = cur_pc; |
| } |
| return true; |
| } |
| |
| // Static data. |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_nop(dwarf_loc_regs_t*) { |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_set_loc(dwarf_loc_regs_t*) { |
| AddressType cur_pc = cur_pc_; |
| AddressType new_pc = operands_[0]; |
| if (new_pc < cur_pc) { |
| if (std::is_same<AddressType, uint32_t>::value) { |
| log(0, "Warning: PC is moving backwards: old 0x%" PRIx32 " new 0x%" PRIx32, cur_pc, new_pc); |
| } else { |
| log(0, "Warning: PC is moving backwards: old 0x%" PRIx64 " new 0x%" PRIx64, cur_pc, new_pc); |
| } |
| } |
| cur_pc_ = new_pc; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_advance_loc(dwarf_loc_regs_t*) { |
| cur_pc_ += operands_[0] * fde_->cie->code_alignment_factor; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_offset(dwarf_loc_regs_t* loc_regs) { |
| AddressType reg = operands_[0]; |
| (*loc_regs)[reg] = {.type = DWARF_LOCATION_OFFSET, .values = {operands_[1]}}; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_restore(dwarf_loc_regs_t* loc_regs) { |
| AddressType reg = operands_[0]; |
| if (cie_loc_regs_ == nullptr) { |
| log(0, "restore while processing cie"); |
| last_error_.code = DWARF_ERROR_ILLEGAL_STATE; |
| return false; |
| } |
| auto reg_entry = cie_loc_regs_->find(reg); |
| if (reg_entry == cie_loc_regs_->end()) { |
| loc_regs->erase(reg); |
| } else { |
| (*loc_regs)[reg] = reg_entry->second; |
| } |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_undefined(dwarf_loc_regs_t* loc_regs) { |
| AddressType reg = operands_[0]; |
| (*loc_regs)[reg] = {.type = DWARF_LOCATION_UNDEFINED}; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_same_value(dwarf_loc_regs_t* loc_regs) { |
| AddressType reg = operands_[0]; |
| loc_regs->erase(reg); |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_register(dwarf_loc_regs_t* loc_regs) { |
| AddressType reg = operands_[0]; |
| AddressType reg_dst = operands_[1]; |
| (*loc_regs)[reg] = {.type = DWARF_LOCATION_REGISTER, .values = {reg_dst}}; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_remember_state(dwarf_loc_regs_t* loc_regs) { |
| loc_reg_state_.push(*loc_regs); |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_restore_state(dwarf_loc_regs_t* loc_regs) { |
| if (loc_reg_state_.size() == 0) { |
| log(0, "Warning: Attempt to restore without remember."); |
| return true; |
| } |
| *loc_regs = loc_reg_state_.top(); |
| loc_reg_state_.pop(); |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_def_cfa(dwarf_loc_regs_t* loc_regs) { |
| (*loc_regs)[CFA_REG] = {.type = DWARF_LOCATION_REGISTER, .values = {operands_[0], operands_[1]}}; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_def_cfa_register(dwarf_loc_regs_t* loc_regs) { |
| auto cfa_location = loc_regs->find(CFA_REG); |
| if (cfa_location == loc_regs->end() || cfa_location->second.type != DWARF_LOCATION_REGISTER) { |
| log(0, "Attempt to set new register, but cfa is not already set to a register."); |
| last_error_.code = DWARF_ERROR_ILLEGAL_STATE; |
| return false; |
| } |
| |
| cfa_location->second.values[0] = operands_[0]; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_def_cfa_offset(dwarf_loc_regs_t* loc_regs) { |
| // Changing the offset if this is not a register is illegal. |
| auto cfa_location = loc_regs->find(CFA_REG); |
| if (cfa_location == loc_regs->end() || cfa_location->second.type != DWARF_LOCATION_REGISTER) { |
| log(0, "Attempt to set offset, but cfa is not set to a register."); |
| last_error_.code = DWARF_ERROR_ILLEGAL_STATE; |
| return false; |
| } |
| cfa_location->second.values[1] = operands_[0]; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_def_cfa_expression(dwarf_loc_regs_t* loc_regs) { |
| // There is only one type of expression for CFA evaluation and the DWARF |
| // specification is unclear whether it returns the address or the |
| // dereferenced value. GDB expects the value, so will we. |
| (*loc_regs)[CFA_REG] = {.type = DWARF_LOCATION_VAL_EXPRESSION, |
| .values = {operands_[0], memory_->cur_offset()}}; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_expression(dwarf_loc_regs_t* loc_regs) { |
| AddressType reg = operands_[0]; |
| (*loc_regs)[reg] = {.type = DWARF_LOCATION_EXPRESSION, |
| .values = {operands_[1], memory_->cur_offset()}}; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_offset_extended_sf(dwarf_loc_regs_t* loc_regs) { |
| AddressType reg = operands_[0]; |
| SignedType value = static_cast<SignedType>(operands_[1]) * fde_->cie->data_alignment_factor; |
| (*loc_regs)[reg] = {.type = DWARF_LOCATION_OFFSET, .values = {static_cast<uint64_t>(value)}}; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_def_cfa_sf(dwarf_loc_regs_t* loc_regs) { |
| SignedType offset = static_cast<SignedType>(operands_[1]) * fde_->cie->data_alignment_factor; |
| (*loc_regs)[CFA_REG] = {.type = DWARF_LOCATION_REGISTER, |
| .values = {operands_[0], static_cast<uint64_t>(offset)}}; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_def_cfa_offset_sf(dwarf_loc_regs_t* loc_regs) { |
| // Changing the offset if this is not a register is illegal. |
| auto cfa_location = loc_regs->find(CFA_REG); |
| if (cfa_location == loc_regs->end() || cfa_location->second.type != DWARF_LOCATION_REGISTER) { |
| log(0, "Attempt to set offset, but cfa is not set to a register."); |
| last_error_.code = DWARF_ERROR_ILLEGAL_STATE; |
| return false; |
| } |
| SignedType offset = static_cast<SignedType>(operands_[0]) * fde_->cie->data_alignment_factor; |
| cfa_location->second.values[1] = static_cast<uint64_t>(offset); |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_val_offset(dwarf_loc_regs_t* loc_regs) { |
| AddressType reg = operands_[0]; |
| SignedType offset = static_cast<SignedType>(operands_[1]) * fde_->cie->data_alignment_factor; |
| (*loc_regs)[reg] = {.type = DWARF_LOCATION_VAL_OFFSET, .values = {static_cast<uint64_t>(offset)}}; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_val_offset_sf(dwarf_loc_regs_t* loc_regs) { |
| AddressType reg = operands_[0]; |
| SignedType offset = static_cast<SignedType>(operands_[1]) * fde_->cie->data_alignment_factor; |
| (*loc_regs)[reg] = {.type = DWARF_LOCATION_VAL_OFFSET, .values = {static_cast<uint64_t>(offset)}}; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_val_expression(dwarf_loc_regs_t* loc_regs) { |
| AddressType reg = operands_[0]; |
| (*loc_regs)[reg] = {.type = DWARF_LOCATION_VAL_EXPRESSION, |
| .values = {operands_[1], memory_->cur_offset()}}; |
| return true; |
| } |
| |
| template <typename AddressType> |
| bool DwarfCfa<AddressType>::cfa_gnu_negative_offset_extended(dwarf_loc_regs_t* loc_regs) { |
| AddressType reg = operands_[0]; |
| SignedType offset = -static_cast<SignedType>(operands_[1]); |
| (*loc_regs)[reg] = {.type = DWARF_LOCATION_OFFSET, .values = {static_cast<uint64_t>(offset)}}; |
| return true; |
| } |
| |
| const DwarfCfaInfo::Info DwarfCfaInfo::kTable[64] = { |
| { |
| // 0x00 DW_CFA_nop |
| "DW_CFA_nop", |
| 2, |
| 0, |
| {}, |
| {}, |
| }, |
| { |
| "DW_CFA_set_loc", // 0x01 DW_CFA_set_loc |
| 2, |
| 1, |
| {DW_EH_PE_absptr}, |
| {DWARF_DISPLAY_SET_LOC}, |
| }, |
| { |
| "DW_CFA_advance_loc1", // 0x02 DW_CFA_advance_loc1 |
| 2, |
| 1, |
| {DW_EH_PE_udata1}, |
| {DWARF_DISPLAY_ADVANCE_LOC}, |
| }, |
| { |
| "DW_CFA_advance_loc2", // 0x03 DW_CFA_advance_loc2 |
| 2, |
| 1, |
| {DW_EH_PE_udata2}, |
| {DWARF_DISPLAY_ADVANCE_LOC}, |
| }, |
| { |
| "DW_CFA_advance_loc4", // 0x04 DW_CFA_advance_loc4 |
| 2, |
| 1, |
| {DW_EH_PE_udata4}, |
| {DWARF_DISPLAY_ADVANCE_LOC}, |
| }, |
| { |
| "DW_CFA_offset_extended", // 0x05 DW_CFA_offset_extended |
| 2, |
| 2, |
| {DW_EH_PE_uleb128, DW_EH_PE_uleb128}, |
| {DWARF_DISPLAY_REGISTER, DWARF_DISPLAY_NUMBER}, |
| }, |
| { |
| "DW_CFA_restore_extended", // 0x06 DW_CFA_restore_extended |
| 2, |
| 1, |
| {DW_EH_PE_uleb128}, |
| {DWARF_DISPLAY_REGISTER}, |
| }, |
| { |
| "DW_CFA_undefined", // 0x07 DW_CFA_undefined |
| 2, |
| 1, |
| {DW_EH_PE_uleb128}, |
| {DWARF_DISPLAY_REGISTER}, |
| }, |
| { |
| "DW_CFA_same_value", // 0x08 DW_CFA_same_value |
| 2, |
| 1, |
| {DW_EH_PE_uleb128}, |
| {DWARF_DISPLAY_REGISTER}, |
| }, |
| { |
| "DW_CFA_register", // 0x09 DW_CFA_register |
| 2, |
| 2, |
| {DW_EH_PE_uleb128, DW_EH_PE_uleb128}, |
| {DWARF_DISPLAY_REGISTER, DWARF_DISPLAY_REGISTER}, |
| }, |
| { |
| "DW_CFA_remember_state", // 0x0a DW_CFA_remember_state |
| 2, |
| 0, |
| {}, |
| {}, |
| }, |
| { |
| "DW_CFA_restore_state", // 0x0b DW_CFA_restore_state |
| 2, |
| 0, |
| {}, |
| {}, |
| }, |
| { |
| "DW_CFA_def_cfa", // 0x0c DW_CFA_def_cfa |
| 2, |
| 2, |
| {DW_EH_PE_uleb128, DW_EH_PE_uleb128}, |
| {DWARF_DISPLAY_REGISTER, DWARF_DISPLAY_NUMBER}, |
| }, |
| { |
| "DW_CFA_def_cfa_register", // 0x0d DW_CFA_def_cfa_register |
| 2, |
| 1, |
| {DW_EH_PE_uleb128}, |
| {DWARF_DISPLAY_REGISTER}, |
| }, |
| { |
| "DW_CFA_def_cfa_offset", // 0x0e DW_CFA_def_cfa_offset |
| 2, |
| 1, |
| {DW_EH_PE_uleb128}, |
| {DWARF_DISPLAY_NUMBER}, |
| }, |
| { |
| "DW_CFA_def_cfa_expression", // 0x0f DW_CFA_def_cfa_expression |
| 2, |
| 1, |
| {DW_EH_PE_block}, |
| {DWARF_DISPLAY_EVAL_BLOCK}, |
| }, |
| { |
| "DW_CFA_expression", // 0x10 DW_CFA_expression |
| 2, |
| 2, |
| {DW_EH_PE_uleb128, DW_EH_PE_block}, |
| {DWARF_DISPLAY_REGISTER, DWARF_DISPLAY_EVAL_BLOCK}, |
| }, |
| { |
| "DW_CFA_offset_extended_sf", // 0x11 DW_CFA_offset_extend_sf |
| 2, |
| 2, |
| {DW_EH_PE_uleb128, DW_EH_PE_sleb128}, |
| {DWARF_DISPLAY_REGISTER, DWARF_DISPLAY_SIGNED_NUMBER}, |
| }, |
| { |
| "DW_CFA_def_cfa_sf", // 0x12 DW_CFA_def_cfa_sf |
| 2, |
| 2, |
| {DW_EH_PE_uleb128, DW_EH_PE_sleb128}, |
| {DWARF_DISPLAY_REGISTER, DWARF_DISPLAY_SIGNED_NUMBER}, |
| }, |
| { |
| "DW_CFA_def_cfa_offset_sf", // 0x13 DW_CFA_def_cfa_offset_sf |
| 2, |
| 1, |
| {DW_EH_PE_sleb128}, |
| {DWARF_DISPLAY_SIGNED_NUMBER}, |
| }, |
| { |
| "DW_CFA_val_offset", // 0x14 DW_CFA_val_offset |
| 2, |
| 2, |
| {DW_EH_PE_uleb128, DW_EH_PE_uleb128}, |
| {DWARF_DISPLAY_REGISTER, DWARF_DISPLAY_NUMBER}, |
| }, |
| { |
| "DW_CFA_val_offset_sf", // 0x15 DW_CFA_val_offset_sf |
| 2, |
| 2, |
| {DW_EH_PE_uleb128, DW_EH_PE_sleb128}, |
| {DWARF_DISPLAY_REGISTER, DWARF_DISPLAY_SIGNED_NUMBER}, |
| }, |
| { |
| "DW_CFA_val_expression", // 0x16 DW_CFA_val_expression |
| 2, |
| 2, |
| {DW_EH_PE_uleb128, DW_EH_PE_block}, |
| {DWARF_DISPLAY_REGISTER, DWARF_DISPLAY_EVAL_BLOCK}, |
| }, |
| {"", 0, 0, {}, {}}, // 0x17 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x18 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x19 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x1a illegal cfa |
| {"", 0, 0, {}, {}}, // 0x1b illegal cfa |
| {"", 0, 0, {}, {}}, // 0x1c DW_CFA_lo_user (Treat as illegal) |
| {"", 0, 0, {}, {}}, // 0x1d illegal cfa |
| {"", 0, 0, {}, {}}, // 0x1e illegal cfa |
| {"", 0, 0, {}, {}}, // 0x1f illegal cfa |
| {"", 0, 0, {}, {}}, // 0x20 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x21 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x22 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x23 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x24 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x25 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x26 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x27 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x28 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x29 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x2a illegal cfa |
| {"", 0, 0, {}, {}}, // 0x2b illegal cfa |
| {"", 0, 0, {}, {}}, // 0x2c illegal cfa |
| {"", 0, 0, {}, {}}, // 0x2d DW_CFA_GNU_window_save (Treat as illegal) |
| { |
| "DW_CFA_GNU_args_size", // 0x2e DW_CFA_GNU_args_size |
| 2, |
| 1, |
| {DW_EH_PE_uleb128}, |
| {DWARF_DISPLAY_NUMBER}, |
| }, |
| { |
| "DW_CFA_GNU_negative_offset_extended", // 0x2f DW_CFA_GNU_negative_offset_extended |
| 2, |
| 2, |
| {DW_EH_PE_uleb128, DW_EH_PE_uleb128}, |
| {DWARF_DISPLAY_REGISTER, DWARF_DISPLAY_NUMBER}, |
| }, |
| {"", 0, 0, {}, {}}, // 0x31 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x32 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x33 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x34 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x35 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x36 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x37 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x38 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x39 illegal cfa |
| {"", 0, 0, {}, {}}, // 0x3a illegal cfa |
| {"", 0, 0, {}, {}}, // 0x3b illegal cfa |
| {"", 0, 0, {}, {}}, // 0x3c illegal cfa |
| {"", 0, 0, {}, {}}, // 0x3d illegal cfa |
| {"", 0, 0, {}, {}}, // 0x3e illegal cfa |
| {"", 0, 0, {}, {}}, // 0x3f DW_CFA_hi_user (Treat as illegal) |
| }; |
| |
| // Explicitly instantiate DwarfCfa. |
| template class DwarfCfa<uint32_t>; |
| template class DwarfCfa<uint64_t>; |
| |
| } // namespace unwindstack |
