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https://github.com/RGBCube/serenity
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UserspaceEmulator: Make big malloc block lookup O(1) as well
By passing the Region& to the auditing functions, we know exactly which block we are hitting. This allows us to track big mallocations the same way we already do chunked ones. This gets rid of the O(n) scan in find_mallocation() for allocations larger than the maximum malloc chunk size. :^)
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parent
8d9dd4c518
commit
e1f617950e
4 changed files with 57 additions and 55 deletions
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@ -75,7 +75,7 @@ ValueWithShadow<u8> MmapRegion::read8(FlatPtr offset)
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if (is_malloc_block()) {
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if (auto* tracer = Emulator::the().malloc_tracer())
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tracer->audit_read(base() + offset, 1);
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tracer->audit_read(*this, base() + offset, 1);
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}
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ASSERT(offset < size());
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@ -92,7 +92,7 @@ ValueWithShadow<u16> MmapRegion::read16(u32 offset)
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if (is_malloc_block()) {
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if (auto* tracer = Emulator::the().malloc_tracer())
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tracer->audit_read(base() + offset, 2);
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tracer->audit_read(*this, base() + offset, 2);
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}
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ASSERT(offset + 1 < size());
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@ -109,7 +109,7 @@ ValueWithShadow<u32> MmapRegion::read32(u32 offset)
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if (is_malloc_block()) {
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if (auto* tracer = Emulator::the().malloc_tracer())
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tracer->audit_read(base() + offset, 4);
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tracer->audit_read(*this, base() + offset, 4);
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}
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ASSERT(offset + 3 < size());
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@ -126,7 +126,7 @@ ValueWithShadow<u64> MmapRegion::read64(u32 offset)
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if (is_malloc_block()) {
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if (auto* tracer = Emulator::the().malloc_tracer())
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tracer->audit_read(base() + offset, 8);
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tracer->audit_read(*this, base() + offset, 8);
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}
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ASSERT(offset + 7 < size());
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@ -143,7 +143,7 @@ void MmapRegion::write8(u32 offset, ValueWithShadow<u8> value)
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if (is_malloc_block()) {
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if (auto* tracer = Emulator::the().malloc_tracer())
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tracer->audit_write(base() + offset, 1);
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tracer->audit_write(*this, base() + offset, 1);
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}
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ASSERT(offset < size());
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@ -161,7 +161,7 @@ void MmapRegion::write16(u32 offset, ValueWithShadow<u16> value)
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if (is_malloc_block()) {
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if (auto* tracer = Emulator::the().malloc_tracer())
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tracer->audit_write(base() + offset, 2);
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tracer->audit_write(*this, base() + offset, 2);
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}
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ASSERT(offset + 1 < size());
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@ -179,7 +179,7 @@ void MmapRegion::write32(u32 offset, ValueWithShadow<u32> value)
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if (is_malloc_block()) {
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if (auto* tracer = Emulator::the().malloc_tracer())
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tracer->audit_write(base() + offset, 4);
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tracer->audit_write(*this, base() + offset, 4);
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}
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ASSERT(offset + 3 < size());
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@ -198,7 +198,7 @@ void MmapRegion::write64(u32 offset, ValueWithShadow<u64> value)
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if (is_malloc_block()) {
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if (auto* tracer = Emulator::the().malloc_tracer())
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tracer->audit_write(base() + offset, 8);
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tracer->audit_write(*this, base() + offset, 8);
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}
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ASSERT(offset + 7 < size());
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