feat(baremetal): implement PAL memory free support - #490
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- Implement free-capable heap allocation for baremetal PAL memory APIs by replacing the previous bump-only heap behavior with allocator metadata, free-list tracking, and adjacent block coalescing. - Store per-allocation metadata so mem_free() can recover and validate the owning block, mark it free, and make the memory available for later allocations. - Route baremetal page and cacheable memory free paths through mem_free() so PAL allocation APIs have matching free handling. - Allow baremetal memory allocated through PAL helpers to be reused after free, reducing the risk of heap exhaustion across tests that allocate and release temporary buffers. Signed-off-by: Sahil Shakil Malpekar <Sahil.ShakilMalpekar@arm.com> Change-Id: I9b34a26ae8d5fd7d72b82f0c0c1ed18eda0571f8
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Implement free-capable heap allocation for baremetal PAL memory APIs by replacing the previous bump-only heap behavior with allocator metadata, free-list tracking, and adjacent block coalescing.
Store per-allocation metadata so mem_free() can recover and validate the owning block, mark it free, and make the memory available for later allocations.
Route baremetal page and cacheable memory free paths through mem_free() so PAL allocation APIs have matching free handling.
Allow baremetal memory allocated through PAL helpers to be reused after free, reducing the risk of heap exhaustion across tests that allocate and release temporary buffers.
Change-Id: I9b34a26ae8d5fd7d72b82f0c0c1ed18eda0571f8