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Shadow memory initialization functions #7836

Merged
merged 4 commits into from
Aug 7, 2023
Merged

Shadow memory initialization functions #7836

merged 4 commits into from
Aug 7, 2023

Commits on Aug 7, 2023

  1. Add util for cleaning pointer argument expr 

    Clean the given pointer expression so that it has the right
shape for being used for identifying shadow memory.
This handles some quirks regarding array sizes containing
L2 symbols and string constants not having char-pointer type.
    @peterschrammel
    peterschrammel authored and Enrico Steffinlongo committed Aug 7, 2023
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  2. Functionality for initializing shadow memory 

    Allocates shadows for a given original memory
for each declared field. The shadows are registered
in the shadow_memory_state (part of goto_symex_statet
to consider scoping of local shadows).

In the next step this functionality is used to
allocate shadow memory for the original memory
allocations encountered when symexing a
goto model.
    @peterschrammel
    peterschrammel authored and Enrico Steffinlongo committed Aug 7, 2023
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  3. iwyu

    Enrico Steffinlongo committed Aug 7, 2023
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  4. Add implementation to shadow memory init function 

    This commit adds the implementation to the 4 shadow memory
user-facing initialization functions.
Namely:
 - shadow_memoryt::symex_field_static_init
 - shadow_memoryt::symex_field_static_init_string_constant
 - shadow_memoryt::symex_field_local_init
 - shadow_memoryt::symex_field_dynamic_init
    Enrico Steffinlongo committed Aug 7, 2023
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