1866208 - PHC should not statically compile page sizes on some platforms

Status: NEW

(Core :: Memory Allocator, enhancement)

Description

[Paul Bone [:pbone]]

Some platforms/architectures can be configured with different page sizes (eg aarch64). We should configure the page size at runtime on these platforms while continuing to statically compile it when we know it (eg on x86_64).

This will also extend PHC's support onto those platforms.

We must solve Bug 1864828 first since increasing the page size without decreasing the PHC area size would consume extra memory, so it's best to have a configurable PHC area size first.