Fixed-static-arena allocator profile

• Type: feature
• Status: rainy-day
• Owner: —
• Blocked-by: feature-unified-heap-allocator
• Opened: 2026-06-06 (from todo.md §2d)

Motivation

Allocator and managed-value tests currently need mmap/munmap/brk. A bare-metal / RTOS target has no such syscalls, so there must be a profile that runs entirely from a fixed static RAM region.

Scope

• A fixed-static-arena memory profile sharing the unified allocator contract (see feature-unified-heap-allocator).
• Allocator and managed-value tests pass under this profile with no mmap, munmap, or brk.

Acceptance

The managed-value / allocator regression set passes with the static-arena profile selected; no host syscalls used for heap.

Log

• 2026-06-06 — ticket opened from todo.md §2d.