Use only get_virtual_memory_page_size() #194
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added 2 commits
August 27, 2025 08:52
virtual_memory_page_size has been deprecated, but it was being used internally extensively. Prior to this change, static use was impossible if PAGESIZE or PAGE_SIZE weren't set. The deprecation has been taken one step forward in that virtual_memory_page_size is no longer available by default. This is a breaking change, but the previous behavior can be enabled with FOONATHAN_MEMORY_ALLOW_VIRTUAL_MEMORY_PAGE_SIZE.
The initialization order is undetermined, and is difficult to reproduce in a test, but this one has a better chance of hitting the failure situation where the virtual_memory_page_size variable is accessed before it has been set, yielding a value of zero. This is basically the crash scenario that I encountered, which prompted these changes.
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virtual_memory_page_size has been deprecated, but it was being used internally extensively. Prior to this change, static use was impossible if PAGESIZE or PAGE_SIZE weren't set.
The deprecation has been taken one step forward in that virtual_memory_page_size is no longer available by default. This is a breaking change, but the previous behavior can be enabled with FOONATHAN_MEMORY_ALLOW_VIRTUAL_MEMORY_PAGE_SIZE.