Struct framehop::MustNotAllocateDuringUnwind

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pub struct MustNotAllocateDuringUnwind;
Expand description

Require allocation-free unwinding. This is one of the two AllocationPolicy implementations.

Using this means that the unwinder cache takes up more memory, because it preallocates space for DWARF CFI unwind table row evaluation and for DWARF CFI expression evaluation. And because those preallocations are of a fixed size, it is possible that this fixed size is not large enough for certain DWARF unwinding tasks.

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