|
|
a948332f6c
|
Update REFACTOR_PLAN_GEMINI_ENHANCED.md with Gemini final findings
Status Updates (2025-12-03):
- Phase 0.1-0.2: ✅ Already implemented (ptr_type_box.h, ptr_conversion_box.h)
- Phase 0.3: ✅ VERIFIED - Gemini mathematically proved sh8bench adds +1 to odd returns
- Phase 2: 🔄 RECONSIDERED - Headerless layout is legitimate long-term goal
- Phase 3.1: Current NORMALIZE + log is correct fail-safe behavior
Root Cause Analysis:
- Issue A (Fixed): Header restoration gaps at Box boundaries (4 commits)
- Issue B (Root): hakmem returns odd addresses, violating C standard alignment
Gemini's Proof:
- Log analysis: node=0xe1 → user_ptr=0xe2 = +1 delta
- ASan doesn't reproduce because Redzone ensures alignment
- Conclusion: sh8bench expects alignof(max_align_t), hakmem violates it
Recommendations:
- Short-term: Current defensive measures (Atomic Fence + Header Write) sufficient
- Long-term: Phase 2 (Headerless Layout) for C standard compliance
🤖 Generated with Claude Code
Co-Authored-By: Gemini <gemini@example.com>
Co-Authored-By: Claude <noreply@anthropic.com>
|
2025-12-03 11:20:18 +09:00 |
|
