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Crash: Lookup block numbers more efficiently.

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We only care about the first one in these places anyway.  Also make sure
we don't try to match an invalid block number.
This commit is contained in:
Unknown W. Brackets 2022-12-20 20:26:41 -08:00
parent c1c8a70401
commit b9fe48f42d
4 changed files with 25 additions and 12 deletions
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18
Core/MIPS/ARM64/Arm64Jit.cpp
View File

@ -427,12 +427,20 @@ bool Arm64Jit::DescribeCodePtr(const u8 *ptr, std::string &name) {
name = "loadStaticRegisters";
else {
u32 addr = blocks.GetAddressFromBlockPtr(ptr);
std::vector<int> numbers;
blocks.GetBlockNumbersFromAddress(addr, &numbers);
if (!numbers.empty()) {
const JitBlock *block = blocks.GetBlock(numbers[0]);
// Returns 0 when it's valid, but unknown.
if (addr == 0) {
name = "(unknown or deleted block)";
return true;
} else if (addr != (u32)-1) {
name = "(outside space)";
return true;
}
int number = blocks.GetBlockNumberFromAddress(addr);
if (number != -1) {
const JitBlock *block = blocks.GetBlock(number);
if (block) {
name = StringFromFormat("(block %d at %08x)", numbers[0], block->originalAddress);
name = StringFromFormat("(block %d at %08x)", number, block->originalAddress);
return true;
}
}

9
Core/MIPS/JitCommon/JitBlockCache.cpp
View File

@ -375,6 +375,15 @@ void JitBlockCache::GetBlockNumbersFromAddress(u32 em_address, std::vector<int>
block_numbers->push_back(i);
}
int JitBlockCache::GetBlockNumberFromAddress(u32 em_address) {
for (int i = 0; i < num_blocks_; i++) {
if (blocks_[i].ContainsAddress(em_address))
return i;
}
return -1;
}
u32 JitBlockCache::GetAddressFromBlockPtr(const u8 *ptr) const {
if (!codeBlock_->IsInSpace(ptr))
return (u32)-1;

2
Core/MIPS/JitCommon/JitBlockCache.h
View File

@ -143,6 +143,8 @@ public:
// Returns a list of block numbers - only one block can start at a particular address, but they CAN overlap.
// This one is slow so should only be used for one-shots from the debugger UI, not for anything during runtime.
void GetBlockNumbersFromAddress(u32 em_address, std::vector<int> *block_numbers);
// Similar to above, but only the first matching address.
int GetBlockNumberFromAddress(u32 em_address);
int GetBlockNumberFromEmuHackOp(MIPSOpcode inst, bool ignoreBad = false) const;
u32 GetAddressFromBlockPtr(const u8 *ptr) const;

8
UI/DevScreens.cpp
View File

@ -1145,13 +1145,7 @@ UI::EventReturn JitCompareScreen::OnCurrentBlock(UI::EventParams &e) {
JitBlockCache *blockCache = MIPSComp::jit->GetBlockCache();
if (!blockCache)
return UI::EVENT_DONE;
std::vector<int> blockNum;
blockCache->GetBlockNumbersFromAddress(currentMIPS->pc, &blockNum);
if (blockNum.size() > 0) {
currentBlock_ = blockNum[0];
} else {
currentBlock_ = -1;
}
currentBlock_ = blockCache->GetBlockNumberFromAddress(currentMIPS->pc);
UpdateDisasm();
return UI::EVENT_DONE;
}