tock / tock/elf2tab

Entry point offset should use segment virtual address

Open
#90 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Rust
Stars
18
Forks
42
PR merge metrics
No merged PRs in 30d

Description

The entry point in the ELF file header (e_entry) is specified as a virtual address. However the logic that calculates TBF init_fn_offset compares it to the segment's physical address, resulting in an incorrect offset for ELF files where physical and virtual addresses differ.

The fix is trivial; PR incoming as I sort out my workflow.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at the logic that calculates the TBF init_fn_offset from the ELF entry point and segment addresses. Check the ELF header's e_entry handling against a segment whose physical and virtual addresses differ; the issue is complete when the offset is based on the segment virtual address and the differing-address case is covered.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
tooling
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.