WebAssembly / WebAssembly/wasi-libc

dlmalloc locks seems to be not enabled in pthread builds

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#393 7 comments 0 reactions 0 assignees View on GitHub

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Dominant language
C
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Forks
251
Avg merge
7h 15m
Merged PRs (30d)
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Description

It seems that in the pthread builds, dlmalloc locks are not enabled, and this makes the libc allocator not thread-safe to use.

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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

The issue names no files, tests, or entry points. Start by locating the pthread build configuration and dlmalloc lock setup, then trace how the libc allocator is exercised in threaded builds. Done means establishing whether locks are enabled there and adding or updating a test that verifies thread-safe allocator use.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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