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sergeykhbr |
/*
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* Copyright 2018 Sergey Khabarov, sergeykhbr@gmail.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "../arm-isa.h"
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#include "srcproc.h"
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#include <iostream>
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namespace debugger {
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/** Class registration in the Core */
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enum ESymbInfo {
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SymbInfo_Name,
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SymbInfo_Address,
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SymbInfo_Total,
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};
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const char *const *RN = IREGS_NAMES;
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ArmSourceService::ArmSourceService(const char *name) : IService(name) {
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registerInterface(static_cast<ISourceCode *>(this));
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brList_.make_list(0);
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symbolListSortByName_.make_list(0);
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symbolListSortByAddr_.make_list(0);
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registerAttribute("Endianess", &endianess_);
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}
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ArmSourceService::~ArmSourceService() {
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}
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void ArmSourceService::postinitService() {
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}
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void ArmSourceService::addFileSymbol(const char *name, uint64_t addr,
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int sz) {
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AttributeType symb(Attr_List);
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symb.make_list(Symbol_Total);
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symb[Symbol_Name].make_string(name);
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symb[Symbol_Addr].make_uint64(addr);
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symb[Symbol_Size].make_int64(sz);
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symbolListSortByName_.add_to_list(&symb);
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symbolListSortByName_.sort(Symbol_Name);
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symbolListSortByAddr_.add_to_list(&symb);
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symbolListSortByAddr_.sort(Symbol_Addr);
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}
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void ArmSourceService::addFunctionSymbol(const char *name,
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uint64_t addr, int sz) {
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addFileSymbol(name, addr, sz);
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}
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void ArmSourceService::addDataSymbol(const char *name, uint64_t addr,
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int sz) {
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addFileSymbol(name, addr, sz);
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}
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void ArmSourceService::clearSymbols() {
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symbolListSortByName_.make_list(0);
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symbolListSortByAddr_.make_list(0);
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}
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void ArmSourceService::addSymbols(AttributeType *list) {
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for (unsigned i = 0; i < list->size(); i++) {
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AttributeType &item = (*list)[i];
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symbolListSortByName_.add_to_list(&item);
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symbolListSortByAddr_.add_to_list(&item);
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}
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symbolListSortByName_.sort(Symbol_Name);
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symbolListSortByAddr_.sort(Symbol_Addr);
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}
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void ArmSourceService::addressToSymbol(uint64_t addr, AttributeType *info) {
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uint64_t sadr, send;
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int sz = static_cast<int>(symbolListSortByAddr_.size());
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info->make_list(SymbInfo_Total);
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(*info)[SymbInfo_Name].make_string("");
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(*info)[SymbInfo_Address].make_uint64(0);
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if (sz == 0) {
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return;
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}
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sadr = symbolListSortByAddr_[0u][Symbol_Addr].to_uint64();
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if (addr < sadr) {
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return;
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}
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bool search = true;
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int dist, pos = sz / 2;
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dist = pos;
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while (search) {
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AttributeType &symb = symbolListSortByAddr_[pos];
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sadr = symb[Symbol_Addr].to_uint64();
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if (pos < static_cast<int>(symbolListSortByAddr_.size()) - 1) {
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send = symbolListSortByAddr_[pos + 1][Symbol_Addr].to_uint64();
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} else {
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send = sadr + symb[Symbol_Size].to_uint64();
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}
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if (sadr <= addr && addr < send) {
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(*info)[SymbInfo_Name] = symb[Symbol_Name];
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(*info)[SymbInfo_Address].make_uint64(addr - sadr);
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return;
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}
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if (addr < sadr) {
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if (dist == 0 || pos == 0) {
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search = false;
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} else if (dist == 1) {
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dist = 0;
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pos--;
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} else {
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int incr = dist / 2;
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pos -= incr;
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dist = (dist / 2) + (dist & 0x1);
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if (pos < 0) {
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pos = 0;
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}
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}
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} else {
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if (dist == 0 || pos == (sz - 1)) {
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search = false;
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} else if (dist == 1) {
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dist = 0;
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pos++;
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} else {
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int incr = dist / 2;
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pos += incr;
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dist = (dist / 2) + (dist & 0x1);
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if (pos >= sz) {
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pos = sz - 1;
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}
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}
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}
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}
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}
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int ArmSourceService::symbol2Address(const char *name, uint64_t *addr) {
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for (unsigned i = 0; i < symbolListSortByName_.size(); i++) {
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AttributeType &item = symbolListSortByName_[i];
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if (item[Symbol_Name].is_equal(name)) {
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*addr = item[Symbol_Addr].to_uint64();
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return 0;
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}
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}
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return -1;
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}
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void ArmSourceService::registerBreakpoint(uint64_t addr, uint64_t flags,
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uint64_t instr) {
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AttributeType item;
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item.make_list(BrkList_Total);
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item[BrkList_address].make_uint64(addr);
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item[BrkList_flags].make_uint64(flags);
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//item[BrkList_instr].make_uint64(instr);
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bool not_found = true;
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for (unsigned i = 0; i < brList_.size(); i++) {
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AttributeType &br = brList_[i];
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if (addr == br[BrkList_address].to_uint64()) {
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not_found = false;
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}
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}
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if (not_found) {
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brList_.add_to_list(&item);
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}
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}
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int ArmSourceService::unregisterBreakpoint(uint64_t addr, uint64_t *flags,
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uint64_t *instr) {
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for (unsigned i = 0; i < brList_.size(); i++) {
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AttributeType &br = brList_[i];
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if (addr == br[BrkList_address].to_uint64()) {
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*flags = br[BrkList_flags].to_uint64();
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//*instr = br[BrkList_instr].to_uint64();
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brList_.remove_from_list(i);
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return 0;
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}
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}
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return 1;
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}
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void ArmSourceService::getBreakpointList(AttributeType *list) {
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if (!list->is_list() || list->size() != brList_.size()) {
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list->make_list(brList_.size());
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}
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for (unsigned i = 0; i < brList_.size(); i++) {
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AttributeType &item = (*list)[i];
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AttributeType &br = brList_[i];
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if (!item.is_list() || item.size() != 3) {
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item.make_list(BrkList_Total);
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}
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item[BrkList_address] = br[BrkList_address];
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item[BrkList_flags] = br[BrkList_flags];
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item[BrkList_instr] = br[BrkList_instr];
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}
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}
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bool ArmSourceService::isBreakpoint(uint64_t addr, AttributeType *outbr) {
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for (unsigned i = 0; i < brList_.size(); i++) {
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uint64_t bradr = brList_[i][BrkList_address].to_uint64();
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if (addr == bradr) {
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*outbr = brList_[i];
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return true;
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}
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}
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return false;
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}
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int ArmSourceService::disasm(uint64_t pc,
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uint8_t *data,
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int offset,
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AttributeType *mnemonic,
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AttributeType *comment) {
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uint32_t instr;
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memcpy(&instr, &data[offset], 4);
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if ((instr & 0x0FB00000) == 0x03000000) {
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return parseUndefinedInstruction(pc, instr, mnemonic, comment);
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} else if ((instr & 0x0F0000F0) == 0x9
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&& (((instr >> 22) & 0x3F) == 0 || ((instr >> 23) & 0x1F) == 1)) {
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return parseMultiply(pc, instr, mnemonic, comment);
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} else if (((instr >> 4) & 0x00FFFFFF) == 0x12FFF1) {
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return parseBranchExchange(pc, instr, mnemonic, comment);
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} else if ((instr & 0x0F0000F0) == 0x06000070) {
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// ARM V6 operation: uxtab, uxtb, uxah, uxth..
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return parseBytesExtending(pc, instr, mnemonic, comment);
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} else if (((instr >> 26) & 0x3) == 0x1) {
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return parseSingleDataTransfer(pc, instr, mnemonic, comment);
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} else if (((instr >> 25) & 0x7) == 0x4) {
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return parseBlockDataTransfer(pc, instr, mnemonic, comment);
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} else if (((instr >> 24) & 0xF) == 0xE && (instr & 0x10)) {
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return parseCoprocRegTransfer(pc, instr, mnemonic, comment);
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} else if (((instr >> 26) & 0x3) == 0x0) {
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return parseDataProcessing(pc, instr, mnemonic, comment);
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} else if (((instr >> 25) & 0x7) == 0x5) {
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return parseBranch(pc, instr, mnemonic, comment);
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}
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mnemonic->make_string("unimpl");
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comment->make_string("");
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return 4;
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}
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void ArmSourceService::disasm(uint64_t pc,
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AttributeType *idata,
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AttributeType *asmlist) {
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asmlist->make_list(0);
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if (!idata->is_data()) {
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return;
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}
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uint8_t *data = idata->data();
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AttributeType asm_item, symb_item, info, brpoint;
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asm_item.make_list(ASM_Total);
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symb_item.make_list(3);
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asm_item[ASM_list_type].make_int64(AsmList_disasm);
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symb_item[ASM_list_type].make_int64(AsmList_symbol);
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uint64_t off = 0;
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Reg64Type code;
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| 274 |
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int codesz;
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| 275 |
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| 276 |
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while (static_cast<unsigned>(off) < idata->size()) {
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code.val = *reinterpret_cast<uint32_t*>(&data[off]);
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| 278 |
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| 279 |
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addressToSymbol(pc + off, &info);
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if (info[SymbInfo_Name].size() != 0 &&
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| 281 |
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info[SymbInfo_Address].to_int() == 0) {
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| 282 |
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symb_item[1].make_uint64(pc + off);
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| 283 |
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symb_item[2].make_string(info[SymbInfo_Name].to_string());
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| 284 |
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asmlist->add_to_list(&symb_item);
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| 285 |
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}
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| 286 |
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asm_item[ASM_addrline].make_uint64(pc + off);
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| 287 |
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asm_item[ASM_breakpoint].make_boolean(false);
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| 288 |
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asm_item[ASM_label].make_string("");
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| 289 |
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| 290 |
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if (isBreakpoint(pc + off, &brpoint)) {
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| 291 |
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asm_item[ASM_breakpoint].make_boolean(true);
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| 292 |
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//if (!(brpoint[BrkList_flags].to_uint64() & BreakFlag_HW)) {
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| 293 |
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// code.val = brpoint[BrkList_instr].to_uint32();
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| 294 |
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//}
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| 295 |
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}
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| 296 |
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codesz = disasm(pc + off,
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| 297 |
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code.buf,
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| 298 |
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0,
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| 299 |
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&asm_item[ASM_mnemonic],
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&asm_item[ASM_comment]);
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| 301 |
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| 302 |
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uint64_t swap = code.val;
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| 303 |
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if (codesz == 2) {
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| 304 |
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swap = code.buf16[0];
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| 305 |
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}
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| 306 |
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if (endianess_.to_int() == 1) {
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| 307 |
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swap = 0;
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| 308 |
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for (int i = 0; i < codesz; i++) {
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| 309 |
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swap = (swap << 8) | code.buf[i];
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| 310 |
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}
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| 311 |
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}
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| 312 |
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asm_item[ASM_code].make_uint64(swap);
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| 313 |
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asm_item[ASM_codesize].make_uint64(codesz);
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| 314 |
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asmlist->add_to_list(&asm_item);
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| 315 |
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off += codesz;
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| 316 |
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}
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| 317 |
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}
|
| 318 |
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| 319 |
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int ArmSourceService::parseUndefinedInstruction(uint64_t pc, uint32_t instr,
|
| 320 |
|
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AttributeType *mnemonic,
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| 321 |
|
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AttributeType *comment) {
|
| 322 |
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char tstr[64];
|
| 323 |
|
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if (((instr >> 20) & 0xFF) == 0x34) {
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| 324 |
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uint32_t imm16 = instr & 0xFFF;
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| 325 |
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imm16 |= ((instr & 0xF0000) >> 12);
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| 326 |
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RISCV_sprintf(tstr, sizeof(tstr), "movt %s,#%04x",
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| 327 |
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IREGS_NAMES[(instr >> 12) & 0xf], imm16);
|
| 328 |
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} else {
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| 329 |
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mnemonic->make_string("unimpl");
|
| 330 |
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comment->make_string("");
|
| 331 |
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}
|
| 332 |
|
|
return 4;
|
| 333 |
|
|
}
|
| 334 |
|
|
|
| 335 |
|
|
|
| 336 |
|
|
int ArmSourceService::parseSingleDataTransfer(uint64_t pc, uint32_t instr,
|
| 337 |
|
|
AttributeType *mnemonic,
|
| 338 |
|
|
AttributeType *comment) {
|
| 339 |
|
|
char tstr[64];
|
| 340 |
|
|
SingleDataTransferType u;
|
| 341 |
|
|
const char *strdown[2] = {"-", ""};
|
| 342 |
|
|
u.value = instr;
|
| 343 |
|
|
if (u.imm_bits.L) {
|
| 344 |
|
|
if (!u.imm_bits.I) {
|
| 345 |
|
|
if (u.imm_bits.rd == Reg_pc && u.imm_bits.rn == Reg_pc
|
| 346 |
|
|
&& (u.imm_bits.imm & 0x1)) {
|
| 347 |
|
|
if (u.imm_bits.imm == 0x4F) {
|
| 348 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "%s", "dsb");
|
| 349 |
|
|
} else if (u.imm_bits.imm == 0x6F) {
|
| 350 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "%s", "isb");
|
| 351 |
|
|
} else {
|
| 352 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "%s", "?sb");
|
| 353 |
|
|
}
|
| 354 |
|
|
} else {
|
| 355 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "ldr %s,[%s,#%s%d]",
|
| 356 |
|
|
IREGS_NAMES[u.imm_bits.rd],
|
| 357 |
|
|
IREGS_NAMES[u.imm_bits.rn],
|
| 358 |
|
|
strdown[u.imm_bits.U],
|
| 359 |
|
|
u.imm_bits.imm
|
| 360 |
|
|
);
|
| 361 |
|
|
}
|
| 362 |
|
|
} else {
|
| 363 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "ldr %s,[%s,%s,LSL#%d]",
|
| 364 |
|
|
IREGS_NAMES[u.reg_bits.rd],
|
| 365 |
|
|
IREGS_NAMES[u.reg_bits.rn],
|
| 366 |
|
|
IREGS_NAMES[u.reg_bits.rm],
|
| 367 |
|
|
u.reg_bits.sh_sel
|
| 368 |
|
|
);
|
| 369 |
|
|
}
|
| 370 |
|
|
} else {
|
| 371 |
|
|
const char *instrname[2] = {"str ", "strb "};
|
| 372 |
|
|
if (!u.imm_bits.I) {
|
| 373 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "%s %s,[%s,#%s%d]",
|
| 374 |
|
|
instrname[u.imm_bits.B],
|
| 375 |
|
|
IREGS_NAMES[u.imm_bits.rd],
|
| 376 |
|
|
IREGS_NAMES[u.imm_bits.rn],
|
| 377 |
|
|
strdown[u.imm_bits.U],
|
| 378 |
|
|
u.imm_bits.imm
|
| 379 |
|
|
);
|
| 380 |
|
|
} else {
|
| 381 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "%s %s,[%s,%s,LSL#%d]",
|
| 382 |
|
|
instrname[u.imm_bits.B],
|
| 383 |
|
|
IREGS_NAMES[u.reg_bits.rd],
|
| 384 |
|
|
IREGS_NAMES[u.reg_bits.rn],
|
| 385 |
|
|
IREGS_NAMES[u.reg_bits.rm],
|
| 386 |
|
|
u.reg_bits.sh_sel
|
| 387 |
|
|
);
|
| 388 |
|
|
}
|
| 389 |
|
|
}
|
| 390 |
|
|
mnemonic->make_string(tstr);
|
| 391 |
|
|
return 4;
|
| 392 |
|
|
}
|
| 393 |
|
|
|
| 394 |
|
|
int ArmSourceService::parseBlockDataTransfer(uint64_t pc, uint32_t instr,
|
| 395 |
|
|
AttributeType *mnemonic,
|
| 396 |
|
|
AttributeType *comment) {
|
| 397 |
|
|
BlockDataTransferType u;
|
| 398 |
|
|
const char *instrname[2] = {"stm ", "ldm "};
|
| 399 |
|
|
const char *spname[2] = {"push ", "pop "};
|
| 400 |
|
|
const char *sflag[2] = {"", "^"};
|
| 401 |
|
|
char rnames[512] = "";
|
| 402 |
|
|
char tstr[512];
|
| 403 |
|
|
int sz = 0;
|
| 404 |
|
|
u.value = instr;
|
| 405 |
|
|
for (int i = 0; i < 16; i++) {
|
| 406 |
|
|
if ((instr & (1 << i )) == 0) {
|
| 407 |
|
|
continue;
|
| 408 |
|
|
}
|
| 409 |
|
|
if (sz) {
|
| 410 |
|
|
sz = RISCV_sprintf(&rnames[sz], sizeof(rnames) - sz,
|
| 411 |
|
|
",%s", IREGS_NAMES[i]);
|
| 412 |
|
|
} else {
|
| 413 |
|
|
sz = RISCV_sprintf(&rnames[sz], sizeof(rnames) - sz,
|
| 414 |
|
|
"%s", IREGS_NAMES[i]);
|
| 415 |
|
|
}
|
| 416 |
|
|
}
|
| 417 |
|
|
|
| 418 |
|
|
if (u.bits.rn == Reg_sp) {
|
| 419 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "%s {%s}%s",
|
| 420 |
|
|
spname[u.bits.L],
|
| 421 |
|
|
rnames,
|
| 422 |
|
|
sflag[u.bits.S]
|
| 423 |
|
|
);
|
| 424 |
|
|
} else {
|
| 425 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "%s %s,{%s}%s",
|
| 426 |
|
|
instrname[u.bits.L],
|
| 427 |
|
|
IREGS_NAMES[u.bits.rn],
|
| 428 |
|
|
rnames,
|
| 429 |
|
|
sflag[u.bits.S]
|
| 430 |
|
|
);
|
| 431 |
|
|
}
|
| 432 |
|
|
mnemonic->make_string(tstr);
|
| 433 |
|
|
return 4;
|
| 434 |
|
|
}
|
| 435 |
|
|
|
| 436 |
|
|
|
| 437 |
|
|
int ArmSourceService::parseDataProcessing(uint64_t pc, uint32_t instr,
|
| 438 |
|
|
AttributeType *mnemonic,
|
| 439 |
|
|
AttributeType *comment) {
|
| 440 |
|
|
char tstr[64];
|
| 441 |
|
|
char op2[32];
|
| 442 |
|
|
DataProcessingType u;
|
| 443 |
|
|
u.value = instr;
|
| 444 |
|
|
const char instr_name[][16] = {
|
| 445 |
|
|
"and ", "eor ", "sub ", "rsb ",
|
| 446 |
|
|
"add ", "adc ", "sbc ", "rsc ",
|
| 447 |
|
|
"tst ", "teq ", "cmp ", "cmn ",
|
| 448 |
|
|
"orr ", "mov ", "bic ", "mvn "
|
| 449 |
|
|
|
| 450 |
|
|
};
|
| 451 |
|
|
const char psrname[2][16] = {"CPSR", "SPSR"};
|
| 452 |
|
|
// N Z C V
|
| 453 |
|
|
const char flagmask[][16] = {
|
| 454 |
|
|
"", "v", "c", "cv",
|
| 455 |
|
|
"z", "zv", "zc", "zcv",
|
| 456 |
|
|
"n", "nv", "nc", "ncv",
|
| 457 |
|
|
"nz", "nzv", "nzc", "nzcv"
|
| 458 |
|
|
};
|
| 459 |
|
|
|
| 460 |
|
|
if (u.imm_bits.I) {
|
| 461 |
|
|
uint32_t rsh = 2*u.imm_bits.rotate;
|
| 462 |
|
|
uint32_t imm = (u.imm_bits.imm >> rsh)
|
| 463 |
|
|
| (u.imm_bits.imm << (32 - rsh));
|
| 464 |
|
|
RISCV_sprintf(op2, sizeof(op2), "#%d", imm);
|
| 465 |
|
|
} else {
|
| 466 |
|
|
if (u.reg_bits.shift) {
|
| 467 |
|
|
RISCV_sprintf(op2, sizeof(op2), "%s{,%d}",
|
| 468 |
|
|
IREGS_NAMES[u.reg_bits.rm],
|
| 469 |
|
|
u.reg_bits.shift);
|
| 470 |
|
|
} else {
|
| 471 |
|
|
RISCV_sprintf(op2, sizeof(op2), "%s",
|
| 472 |
|
|
IREGS_NAMES[u.reg_bits.rm],
|
| 473 |
|
|
u.reg_bits.shift);
|
| 474 |
|
|
}
|
| 475 |
|
|
}
|
| 476 |
|
|
if (instr == 0xe320f000) {
|
| 477 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "nop {%d}", 0);
|
| 478 |
|
|
} else if (u.mrs_bits.b27_23 == 0x2 && u.mrs_bits.b21_20 == 0
|
| 479 |
|
|
&& u.mrs_bits.mask == 0xF && u.mrs_bits.zero12 == 0) {
|
| 480 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "mrs %s,%s",
|
| 481 |
|
|
IREGS_NAMES[u.mrs_bits.rd],
|
| 482 |
|
|
psrname[u.mrs_bits.ps]);
|
| 483 |
|
|
} else if ((u.mrs_bits.b27_23 == 0x2 || u.mrs_bits.b27_23 == 0x6)
|
| 484 |
|
|
&& u.mrs_bits.b21_20 == 0x2
|
| 485 |
|
|
&& u.mrs_bits.rd == 0xf) {
|
| 486 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "msr %s_%s,%s",
|
| 487 |
|
|
psrname[u.mrs_bits.ps],
|
| 488 |
|
|
flagmask[u.mrs_bits.mask+1],
|
| 489 |
|
|
op2
|
| 490 |
|
|
);
|
| 491 |
|
|
} else if (u.imm_bits.opcode == 13 || u.imm_bits.opcode == 15) {
|
| 492 |
|
|
// MOV, MVN
|
| 493 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "%s %s,%s",
|
| 494 |
|
|
instr_name[u.imm_bits.opcode],
|
| 495 |
|
|
IREGS_NAMES[u.imm_bits.rd],
|
| 496 |
|
|
op2);
|
| 497 |
|
|
} else if (u.imm_bits.opcode == 8 || u.imm_bits.opcode == 9
|
| 498 |
|
|
|| u.imm_bits.opcode == 10 || u.imm_bits.opcode == 11) {
|
| 499 |
|
|
// CMP, CMN, TEQ, TST
|
| 500 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "%s %s,%s",
|
| 501 |
|
|
instr_name[u.imm_bits.opcode],
|
| 502 |
|
|
IREGS_NAMES[u.imm_bits.rn],
|
| 503 |
|
|
op2);
|
| 504 |
|
|
} else {
|
| 505 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "%s %s,%s,%s",
|
| 506 |
|
|
instr_name[u.imm_bits.opcode],
|
| 507 |
|
|
IREGS_NAMES[u.imm_bits.rd],
|
| 508 |
|
|
IREGS_NAMES[u.imm_bits.rn],
|
| 509 |
|
|
op2);
|
| 510 |
|
|
}
|
| 511 |
|
|
mnemonic->make_string(tstr);
|
| 512 |
|
|
return 4;
|
| 513 |
|
|
}
|
| 514 |
|
|
|
| 515 |
|
|
int ArmSourceService::parseMultiply(uint64_t pc, uint32_t instr,
|
| 516 |
|
|
AttributeType *mnemonic,
|
| 517 |
|
|
AttributeType *comment) {
|
| 518 |
|
|
char tstr[64] = "unimpl";
|
| 519 |
|
|
instr &= 0x0FFFFFFF;
|
| 520 |
|
|
if ((instr >> 23) == 0) {
|
| 521 |
|
|
MulType u;
|
| 522 |
|
|
u.value = instr;
|
| 523 |
|
|
if (u.bits.A) {
|
| 524 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "mla %s,%s,%s,%s",
|
| 525 |
|
|
IREGS_NAMES[u.bits.rd],
|
| 526 |
|
|
IREGS_NAMES[u.bits.rm],
|
| 527 |
|
|
IREGS_NAMES[u.bits.rs],
|
| 528 |
|
|
IREGS_NAMES[u.bits.rn]);
|
| 529 |
|
|
} else {
|
| 530 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "mul %s,%s,%s",
|
| 531 |
|
|
IREGS_NAMES[u.bits.rd],
|
| 532 |
|
|
IREGS_NAMES[u.bits.rm],
|
| 533 |
|
|
IREGS_NAMES[u.bits.rs]);
|
| 534 |
|
|
}
|
| 535 |
|
|
} else if ((instr >> 23) == 1) {
|
| 536 |
|
|
const char *str_s[2] = {"u", "s"};
|
| 537 |
|
|
const char *str_instr[2] = {"mull ", "mlal "};
|
| 538 |
|
|
MulLongType u;
|
| 539 |
|
|
u.value = instr;
|
| 540 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "%s%s %s,%s,%s,%s",
|
| 541 |
|
|
str_s[u.bits.S],
|
| 542 |
|
|
str_instr[u.bits.A],
|
| 543 |
|
|
IREGS_NAMES[u.bits.rdhi],
|
| 544 |
|
|
IREGS_NAMES[u.bits.rdlo],
|
| 545 |
|
|
IREGS_NAMES[u.bits.rm],
|
| 546 |
|
|
IREGS_NAMES[u.bits.rs]);
|
| 547 |
|
|
}
|
| 548 |
|
|
mnemonic->make_string(tstr);
|
| 549 |
|
|
return 4;
|
| 550 |
|
|
}
|
| 551 |
|
|
|
| 552 |
|
|
int ArmSourceService::parseBytesExtending(uint64_t pc, uint32_t instr,
|
| 553 |
|
|
AttributeType *mnemonic,
|
| 554 |
|
|
AttributeType *comment) {
|
| 555 |
|
|
char tstr[64] = "unimpl";
|
| 556 |
|
|
SignExtendType u;
|
| 557 |
|
|
u.value = instr;
|
| 558 |
|
|
if (u.bits.rn == 0xF) {
|
| 559 |
|
|
if (u.bits.b27_20 == 0x6E) {
|
| 560 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "uxtb %s,%s,sh#%d",
|
| 561 |
|
|
IREGS_NAMES[u.bits.rd],
|
| 562 |
|
|
IREGS_NAMES[u.bits.rm],
|
| 563 |
|
|
8*u.bits.rotate);
|
| 564 |
|
|
} else if (u.bits.b27_20 == 0x6C) {
|
| 565 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "uxtb16 %s,%s,sh#%d",
|
| 566 |
|
|
IREGS_NAMES[u.bits.rd],
|
| 567 |
|
|
IREGS_NAMES[u.bits.rm],
|
| 568 |
|
|
8*u.bits.rotate);
|
| 569 |
|
|
} else if (u.bits.b27_20 == 0x6F) {
|
| 570 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "uxth %s,%s,sh#%d",
|
| 571 |
|
|
IREGS_NAMES[u.bits.rd],
|
| 572 |
|
|
IREGS_NAMES[u.bits.rm],
|
| 573 |
|
|
8*u.bits.rotate);
|
| 574 |
|
|
}
|
| 575 |
|
|
} else {
|
| 576 |
|
|
if (u.bits.b27_20 == 0x6E) {
|
| 577 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "uxtab %s,%s,%s,sh#%d",
|
| 578 |
|
|
IREGS_NAMES[u.bits.rd],
|
| 579 |
|
|
IREGS_NAMES[u.bits.rn],
|
| 580 |
|
|
IREGS_NAMES[u.bits.rm],
|
| 581 |
|
|
8*u.bits.rotate);
|
| 582 |
|
|
} else if (u.bits.b27_20 == 0x6C) {
|
| 583 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "uxtab16 %s,%s,%s,sh#%d",
|
| 584 |
|
|
IREGS_NAMES[u.bits.rd],
|
| 585 |
|
|
IREGS_NAMES[u.bits.rn],
|
| 586 |
|
|
IREGS_NAMES[u.bits.rm],
|
| 587 |
|
|
8*u.bits.rotate);
|
| 588 |
|
|
} else if (u.bits.b27_20 == 0x6F) {
|
| 589 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "uxtah %s,%s,%s,sh#%d",
|
| 590 |
|
|
IREGS_NAMES[u.bits.rd],
|
| 591 |
|
|
IREGS_NAMES[u.bits.rn],
|
| 592 |
|
|
IREGS_NAMES[u.bits.rm],
|
| 593 |
|
|
8*u.bits.rotate);
|
| 594 |
|
|
}
|
| 595 |
|
|
}
|
| 596 |
|
|
mnemonic->make_string(tstr);
|
| 597 |
|
|
return 4;
|
| 598 |
|
|
}
|
| 599 |
|
|
|
| 600 |
|
|
|
| 601 |
|
|
int ArmSourceService::parseCoprocRegTransfer(uint64_t pc, uint32_t instr,
|
| 602 |
|
|
AttributeType *mnemonic,
|
| 603 |
|
|
AttributeType *comment) {
|
| 604 |
|
|
char tstr[64] = "unimpl";
|
| 605 |
|
|
CoprocessorTransferType u;
|
| 606 |
|
|
u.value = instr;
|
| 607 |
|
|
const char instr_name[2][16] = {"mcr ", "mrc "};
|
| 608 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "%s p%d,%d,%s,c%d,c%d,%d",
|
| 609 |
|
|
instr_name[u.bits.L],
|
| 610 |
|
|
u.bits.cp_num,
|
| 611 |
|
|
u.bits.mode,
|
| 612 |
|
|
IREGS_NAMES[u.bits.rd],
|
| 613 |
|
|
u.bits.crn,
|
| 614 |
|
|
u.bits.crm,
|
| 615 |
|
|
u.bits.cp_nfo
|
| 616 |
|
|
);
|
| 617 |
|
|
mnemonic->make_string(tstr);
|
| 618 |
|
|
return 4;
|
| 619 |
|
|
}
|
| 620 |
|
|
|
| 621 |
|
|
int ArmSourceService::parseBranch(uint64_t pc, uint32_t instr,
|
| 622 |
|
|
AttributeType *mnemonic,
|
| 623 |
|
|
AttributeType *comment) {
|
| 624 |
|
|
char tstr[64];
|
| 625 |
|
|
BranchType u;
|
| 626 |
|
|
u.value = instr;
|
| 627 |
|
|
const char *flags[16] = {
|
| 628 |
|
|
"eq", "ne", "cs", "cc", "mi", "pl", "vs", "vc",
|
| 629 |
|
|
"hi", "ls", "ge", "lt", "gt", "le", "", ""
|
| 630 |
|
|
};
|
| 631 |
|
|
|
| 632 |
|
|
uint32_t off = u.bits.offset;
|
| 633 |
|
|
if ((u.value >> 23) & 0x1) {
|
| 634 |
|
|
off |= 0xFF000000;
|
| 635 |
|
|
}
|
| 636 |
|
|
off = static_cast<uint32_t>(pc + (off << 2) + 8);
|
| 637 |
|
|
|
| 638 |
|
|
if (u.bits.L) {
|
| 639 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "bl %x",
|
| 640 |
|
|
off);
|
| 641 |
|
|
} else {
|
| 642 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "b%2s %x",
|
| 643 |
|
|
flags[u.bits.cond],
|
| 644 |
|
|
off);
|
| 645 |
|
|
}
|
| 646 |
|
|
mnemonic->make_string(tstr);
|
| 647 |
|
|
return 4;
|
| 648 |
|
|
}
|
| 649 |
|
|
|
| 650 |
|
|
int ArmSourceService::parseBranchExchange(uint64_t pc, uint32_t instr,
|
| 651 |
|
|
AttributeType *mnemonic,
|
| 652 |
|
|
AttributeType *comment) {
|
| 653 |
|
|
char tstr[64];
|
| 654 |
|
|
BranchType u;
|
| 655 |
|
|
u.value = instr;
|
| 656 |
|
|
|
| 657 |
|
|
RISCV_sprintf(tstr, sizeof(tstr), "bx %s",
|
| 658 |
|
|
IREGS_NAMES[u.bits.offset & 0xF]);
|
| 659 |
|
|
mnemonic->make_string(tstr);
|
| 660 |
|
|
return 4;
|
| 661 |
|
|
}
|
| 662 |
|
|
|
| 663 |
|
|
} // namespace debugger
|
