Make Oniro musl ABI compatible with OpenHarmony

Ensure that Oniro provides OpenHarmony ABI compatible musl libc.

• Identify the relevant musl code bases to extract patches from (they are dynamically generated during build using //third_party/musl/porting overlays)
• Extract complete patch sets for each musl code base
• Filter out patches that are not needed in newer upstream (musl) versions
• Filter out patches that does not involve ABI/API compatibility
• Refactor patch sets into a single combined patch set
• Rebase patch set into potentially upstreamable patches
• For each patch (series)...
  • Discuss with OpenHarmony teams if it is actually needed
  • Submit to musl upstream and follow up to get it merged

added to epic &1

changed the description

added teamtoolchain label

set weight to 10

changed epic to &88

changed milestone to %goofy alpha

changed iteration to Oniro Core Iterations May 1, 2022 - May 31, 2022

marked the checklist item Filter out patches that are not needed in newer upstream (musl) versions as completed

marked the checklist item Filter out patches that are not needed in newer upstream (musl) versions as incomplete

added Doing label

!121 gets the patches in sync with OpenHarmony 3.1 (but on top of current musl). The patches need some additional fixing, but compatibility is enabled now. Will add a followup task for June.

closed

removed Doing label