rust-osdev/linked-list-allocator

Support using more than one memory region

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#83 opened on Jul 25, 2024

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help wanted

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Description

The ESP32 (using esp-hal) has two memory regions that are usable, in the linker scripts as dram_seg and dram2_seg. Currently, this dram2_seg is unusable unless a user is to setup multiple heaps which is annoying to use. Can support be added to allow one Heap to both (or even more) regions of memory?

Contributor guide

Research direction
Investigate the Heap struct and its methods to understand how to extend it to support multiple memory regions. Look at the existing region handling (e.g., init, add to heap) and consider modifying them to track a list of memory regions. Also check the linker scripts (e.g., from esp hal) to understand the memory layout.
Tech stack
rust
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
RustMemory allocation internals
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30