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InvalidationTracker: Better match Windows code invalidation behaviour

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When given a NULL base address, Windows invalidation callbacks will
ignore the given size and invalidate all code.
This commit is contained in:
Billy Laws 2024-07-29 12:56:08 +00:00
parent c5fe8723d3
commit 93ab57454a
1 changed files with 6 additions and 1 deletions
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7
Source/Windows/Common/InvalidationTracker.cpp
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@ -63,8 +63,13 @@ void InvalidationTracker::InvalidateContainingSection(uint64_t Address, bool Fre
}
void InvalidationTracker::InvalidateAlignedInterval(uint64_t Address, uint64_t Size, bool Free) {
if (!Address) {
// Match the Windows behaviour when passed a NULL base address.
Size = std::numeric_limits<uint64_t>::max();
}
const auto AlignedBase = Address & FEXCore::Utils::FEX_PAGE_MASK;
const auto AlignedSize = (Address - AlignedBase + Size + FEXCore::Utils::FEX_PAGE_SIZE - 1) & FEXCore::Utils::FEX_PAGE_MASK;
const auto AlignedSize = std::max(Size, (Address - AlignedBase + Size + FEXCore::Utils::FEX_PAGE_SIZE - 1) & FEXCore::Utils::FEX_PAGE_MASK);
{
std::scoped_lock Lock(CTX.GetCodeInvalidationMutex());