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[PR #3499] [CLOSED] fix(native): preserve arm64e variant for otool #5782

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opened 2026-10-31 01:09:24 +00:00 by bsakaguchi · 0 comments

bsakaguchi commented

2026-10-31 01:09:24 +00:00

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📋 Pull Request Information

Original PR: https://github.com/morluto/rea/pull/3499
Author: @zpf2234
Created: 10/14/2026
Status: ❌ Closed

Base: main ← Head: fix/native-arm64e-otool

📝 Commits (1)

ad0c8c2 fix(native): preserve arm64e variant for otool

📊 Changes

2 files changed (+10 additions, -4 deletions)

View changed files

📝 src/native/NativeMachoInspection.test.ts (+3 -1)
📝 src/native/NativeMachoInspection.ts (+7 -3)

📄 Description

Summary

Fixes #3389. A universal Mach-O containing x86_64 and arm64e.x1 can be selected correctly by REA, but otool receives arm64e after the variant suffix is stripped and may reject the valid slice.

Problem and expected behavior

dyld_info already receives the exact lipo spelling. otool needs the same exact spelling for newer arm64e.* variants on affected Apple toolchains; the generic base spelling is not equivalent for slice selection.

Change and scope

Keep the exact architecture name only for otool when the selected name is an arm64e.* variant. Other tools retain their existing base-family behavior, and dyld_info remains unchanged. The test adds a universal x86_64/arm64e.x1 selection case and checks the command argument.

Contract and boundary impact

Semantic owner and earliest changed stage: native Mach-O slice command construction.
Contribution scope fit and linked maintainer decision: ordinary platform compatibility fix; no additional decision required.
CLI and MCP/tool-catalog contract: no schema or catalog change.
Provider, bridge, target-format, or platform compatibility: improves Apple otool handling for lipo-reported arm64e variants.
Evidence, artifact, provenance, or reconstruction contract: keeps the selected slice identity in the native command invocation.
Target selection, authority, upstream behavior, and cleanup details: read-only native inspection; no process launch or target mutation.
Generated metadata or package impact: none.

Evidence and regression coverage

Tests added or updated: src/native/NativeMachoInspection.test.ts covers selection of arm64e.x1 alongside x86_64 and preserves existing base-family expectations for other variants.
Base reproduction or other evidence: issue #3389 reports direct otool -arch arm64e.x1 success and REA's -arch arm64e failure.
Remaining proof gaps: the test uses the repository's command fixture; a real Apple otool run on a universal arm64e.x1 binary remains to be executed.

Validation performed

npm run test:focused -- src/native/NativeMachoInspection.test.ts — 20 passed.
npm run check:fast — typecheck and lint passed.

Compatibility, safety, and release

Breaking changes or migration steps: none.
Real provider or OS coverage: no live Apple toolchain was available on this Windows host.
Package or release metadata impact: none.
Security, privacy, process, or containment review: read-only argument selection; no new authority.

Author readiness

Human owner:

I reviewed the final diff and relevant existing code, understand the change and its edge cases, and take responsibility for the complete PR, including AI-assisted work.
I checked the evidence above, confirmed it supports the current change, and recorded meaningful validation gaps.
I declare this PR ready for initial maintainer review.

Before merge

This PR addresses a concrete problem or an agreed enhancement.
Material scope and authority questions are resolved, and any required maintainer scope decision covers the final diff.
The PR has one focused outcome and the title follows type(scope): outcome.
Tests cover changed observable behavior and meaningful failure paths.
Owning docs, contracts, and generated metadata are updated where needed.
User-visible CLI/MCP changes include representative output.
I checked the final diff for secrets, unrelated cleanup, and unsupported claims.

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/morluto/rea/pull/3499 **Author:** [@zpf2234](https://github.com/zpf2234) **Created:** 10/14/2026 **Status:** ❌ Closed **Base:** `main` ← **Head:** `fix/native-arm64e-otool` --- ### 📝 Commits (1) - [`ad0c8c2`](https://github.com/morluto/rea/commit/ad0c8c26486d7f69a3bb30d6f49a3674da1e2dfd) fix(native): preserve arm64e variant for otool ### 📊 Changes **2 files changed** (+10 additions, -4 deletions) <details> <summary>View changed files</summary> 📝 `src/native/NativeMachoInspection.test.ts` (+3 -1) 📝 `src/native/NativeMachoInspection.ts` (+7 -3) </details> ### 📄 Description ## Summary Fixes #3389. A universal Mach-O containing `x86_64` and `arm64e.x1` can be selected correctly by REA, but `otool` receives `arm64e` after the variant suffix is stripped and may reject the valid slice. ## Problem and expected behavior `dyld_info` already receives the exact lipo spelling. `otool` needs the same exact spelling for newer `arm64e.*` variants on affected Apple toolchains; the generic base spelling is not equivalent for slice selection. ## Change and scope Keep the exact architecture name only for `otool` when the selected name is an `arm64e.*` variant. Other tools retain their existing base-family behavior, and `dyld_info` remains unchanged. The test adds a universal `x86_64`/`arm64e.x1` selection case and checks the command argument. ## Contract and boundary impact - Semantic owner and earliest changed stage: native Mach-O slice command construction. - Contribution scope fit and linked maintainer decision: ordinary platform compatibility fix; no additional decision required. - CLI and MCP/tool-catalog contract: no schema or catalog change. - Provider, bridge, target-format, or platform compatibility: improves Apple `otool` handling for lipo-reported arm64e variants. - Evidence, artifact, provenance, or reconstruction contract: keeps the selected slice identity in the native command invocation. - Target selection, authority, upstream behavior, and cleanup details: read-only native inspection; no process launch or target mutation. - Generated metadata or package impact: none. ## Evidence and regression coverage - Tests added or updated: `src/native/NativeMachoInspection.test.ts` covers selection of `arm64e.x1` alongside `x86_64` and preserves existing base-family expectations for other variants. - Base reproduction or other evidence: issue #3389 reports direct `otool -arch arm64e.x1` success and REA's `-arch arm64e` failure. - Remaining proof gaps: the test uses the repository's command fixture; a real Apple `otool` run on a universal arm64e.x1 binary remains to be executed. ## Validation performed - `npm run test:focused -- src/native/NativeMachoInspection.test.ts` — 20 passed. - `npm run check:fast` — typecheck and lint passed. ## Compatibility, safety, and release - Breaking changes or migration steps: none. - Real provider or OS coverage: no live Apple toolchain was available on this Windows host. - Package or release metadata impact: none. - Security, privacy, process, or containment review: read-only argument selection; no new authority. ## Author readiness Human owner:  - [ ] I reviewed the final diff and relevant existing code, understand the change and its edge cases, and take responsibility for the complete PR, including AI-assisted work. - [ ] I checked the evidence above, confirmed it supports the current change, and recorded meaningful validation gaps. - [ ] I declare this PR ready for initial maintainer review. ## Before merge - [ ] This PR addresses a concrete problem or an agreed enhancement. - [ ] Material scope and authority questions are resolved, and any required maintainer scope decision covers the final diff. - [ ] The PR has one focused outcome and the title follows `type(scope): outcome`. - [ ] Tests cover changed observable behavior and meaningful failure paths. - [ ] Owning docs, contracts, and generated metadata are updated where needed. - [ ] User-visible CLI/MCP changes include representative output. - [ ] I checked the final diff for secrets, unrelated cleanup, and unsupported claims. --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

bsakaguchi

2026-10-31 01:09:24 +00:00

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