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110 lines
4 KiB
C++
110 lines
4 KiB
C++
#include "pch.h"
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#include "Debugger/MemoryAccessCounter.h"
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#include "Debugger/DebugBreakHelper.h"
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#include "Debugger/Debugger.h"
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#include "Debugger/DebugUtilities.h"
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#include "Debugger/MemoryDumper.h"
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#include "Shared/Interfaces/IConsole.h"
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MemoryAccessCounter::MemoryAccessCounter(Debugger* debugger)
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{
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_debugger = debugger;
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//Enable breaking on uninit reads when debugger is opened at power on
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_enableBreakOnUninitRead = _debugger->GetConsole()->GetMasterClock() < 1000;
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for(int i = (int)DebugUtilities::GetLastCpuMemoryType() + 1; i < DebugUtilities::GetMemoryTypeCount(); i++) {
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uint32_t memSize = _debugger->GetMemoryDumper()->GetMemorySize((MemoryType)i);
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_counters[i].reserve(memSize);
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for(uint32_t j = 0; j < memSize; j++) {
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_counters[i].push_back({});
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}
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}
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}
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template<uint8_t accessWidth>
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ReadResult MemoryAccessCounter::ProcessMemoryRead(AddressInfo &addressInfo, uint64_t masterClock)
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{
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if(addressInfo.Address < 0) {
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return ReadResult::Normal;
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}
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ReadResult result = ReadResult::Normal;
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for(int i = 0; i < accessWidth; i++) {
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AddressCounters& counts = _counters[(int)addressInfo.Type][addressInfo.Address+i];
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if(_enableBreakOnUninitRead && counts.WriteStamp == 0 && DebugUtilities::IsVolatileRam(addressInfo.Type)) {
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result = (ReadResult)((int)result | (int)(counts.ReadStamp == 0 ? ReadResult::FirstUninitRead : ReadResult::UninitRead));
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}
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counts.ReadStamp = masterClock;
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counts.ReadCounter++;
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}
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return result;
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}
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template<uint8_t accessWidth>
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void MemoryAccessCounter::ProcessMemoryWrite(AddressInfo& addressInfo, uint64_t masterClock)
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{
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if(addressInfo.Address < 0) {
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return;
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}
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for(int i = 0; i < accessWidth; i++) {
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AddressCounters& counts = _counters[(int)addressInfo.Type][addressInfo.Address+i];
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counts.WriteStamp = masterClock;
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counts.WriteCounter++;
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}
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}
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template<uint8_t accessWidth>
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void MemoryAccessCounter::ProcessMemoryExec(AddressInfo& addressInfo, uint64_t masterClock)
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{
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if(addressInfo.Address < 0) {
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return;
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}
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for(int i = 0; i < accessWidth; i++) {
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AddressCounters& counts = _counters[(int)addressInfo.Type][addressInfo.Address+i];
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counts.ExecStamp = masterClock;
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counts.ExecCounter++;
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}
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}
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void MemoryAccessCounter::ResetCounts()
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{
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DebugBreakHelper helper(_debugger);
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for(int i = 0; i < DebugUtilities::GetMemoryTypeCount(); i++) {
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memset(_counters[i].data(), 0, _counters[i].size() * sizeof(AddressCounters));
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}
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_enableBreakOnUninitRead = _debugger->GetConsole()->GetMasterClock() < 1000;
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}
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void MemoryAccessCounter::GetAccessCounts(uint32_t offset, uint32_t length, MemoryType memoryType, AddressCounters counts[])
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{
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if(DebugUtilities::IsRelativeMemory(memoryType)) {
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AddressInfo addr = {};
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addr.Type = memoryType;
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for(uint32_t i = 0; i < length; i++) {
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addr.Address = offset + i;
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AddressInfo info = _debugger->GetAbsoluteAddress(addr);
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if(info.Address >= 0) {
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counts[i] = _counters[(int)info.Type][info.Address];
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}
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}
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} else {
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if(offset + length <= _counters[(int)memoryType].size()) {
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memcpy(counts, _counters[(int)memoryType].data() + offset, length * sizeof(AddressCounters));
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}
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}
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}
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template ReadResult MemoryAccessCounter::ProcessMemoryRead<1>(AddressInfo& addressInfo, uint64_t masterClock);
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template ReadResult MemoryAccessCounter::ProcessMemoryRead<2>(AddressInfo& addressInfo, uint64_t masterClock);
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template ReadResult MemoryAccessCounter::ProcessMemoryRead<4>(AddressInfo& addressInfo, uint64_t masterClock);
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template void MemoryAccessCounter::ProcessMemoryWrite<1>(AddressInfo& addressInfo, uint64_t masterClock);
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template void MemoryAccessCounter::ProcessMemoryWrite<2>(AddressInfo& addressInfo, uint64_t masterClock);
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template void MemoryAccessCounter::ProcessMemoryWrite<4>(AddressInfo& addressInfo, uint64_t masterClock);
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template void MemoryAccessCounter::ProcessMemoryExec<1>(AddressInfo& addressInfo, uint64_t masterClock);
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template void MemoryAccessCounter::ProcessMemoryExec<2>(AddressInfo& addressInfo, uint64_t masterClock);
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template void MemoryAccessCounter::ProcessMemoryExec<4>(AddressInfo& addressInfo, uint64_t masterClock);
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