Support high-entropy 64-bit ASLR
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|
Type |
Switch |
|
Syntax |
{$HIGHENTROPYVA ON}, {$HIGHENTROPYVA OFF} |
|
Default |
{$HIGHENTROPYVA ON} |
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Scope |
Global |
Remarks
Enabling the flag {$HIGHENTROPYVA} provides secure protection against attacks based on buffer overrun. Enable this flag to prevent attacks in memory-corruption vulnerabilities by enabling ASLR to randomly arrange the address space positions for the stack, heap, libraries, and key data areas of a process.
Note: To enable the {$HIGHENTROPYVA} flag, first you must enable {$LARGEADDRESSAWARE} and {$DYNAMICBASE}.
Note: {$HIGHENTROPYVA} is only available for 64-bit Windows.
Delphi 11.2 expands ASLR support for the Win64 platform. It adds the ability to randomize memory addresses at high locations. This makes 64-bit applications really take advantage of the full address space.
Note: This configuration might require you to clean up some of your code according to 64-bit rules.