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docs(phase-31): narrow main's link defect — retarget delta == sizeof(.text 800c2.o) == 0x2A0

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- call site is libmcrd1/func_80060D9C.s +0xD8, referencing the callee BY NAME (jal func_80061FA8)
- our build resolves that name 0x2A0 later, which is EXACTLY the .text size of build/src/800c2.o,
  the object starting at 0x80061FA8 -> the name binds to the END of the object (the next
  section's first symbol, firstfile in psyq/apicard/A66.o) instead of its start
- 3 ordered hypotheses recorded (duplicate func_80061FA8/.NON_MATCHING pair; object dropped or
  reordered when src/800.o gains an undefined ref; an absolute symbol shadowing the object's)
- everything to test it is in the map + the 4 preserved main drafts
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Drew T
2026-08-15 02:33:02 -06:00
parent cb30f26799
commit b398a9d908
1 changed files with 3 additions and 0 deletions
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phase-ends/CURRENT_PHASE.md
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@@ -103,6 +103,9 @@ R22 clean-fleet **213/213** after every banked batch · tools-health green · 0
## Blockers
- **main (79,510 weighted ins @ 0.5%) is blocked on a LINK-RESOLUTION defect, not on matching** — see the 2-byte `jal` retarget above. Needs its own lane before any main wave is worth running. Overlay/md lanes are unaffected and continue to bank.
- **NARROWED 2026-08-15 (a specific, testable lead).** The call site is `asm/nonmatchings/libmcrd1/func_80060D9C.s` +0xD8, and it references the callee **BY NAME**: `jal func_80061FA8`. Original encodes `0x80061FA8`; our build with one extra C function encodes `0x80062248`. **The delta is exactly `0x2A0`, which the map shows is precisely the `.text` SIZE of `build/src/800c2.o`** — the object whose `.text` *starts* at `0x80061FA8` (map line 3712: `.text 0x80061fa8 0x2a0 build/src/800c2.o`, with `func_80061FA8` and `func_80061FA8.NON_MATCHING` both bound there, and `func_80062144` inside it). So the name `func_80061FA8` resolved to the **END** of that object instead of its start — i.e. one object's length later, landing on the next section's first symbol (`firstfile`, `build/psyq/apicard/A66.o`). **Hypotheses to test, in order:** (1) the duplicate `func_80061FA8` / `func_80061FA8.NON_MATCHING` pair — a second definition winning under a changed link order; (2) `800c2.o` being dropped/reordered when a new undefined ref appears in `src/800.o`, so the name binds to the following object; (3) an `undefined_syms_auto.txt` / `symbols.us.txt` absolute (`firstfile2 = 0x80062248`) shadowing the object-provided symbol. Everything needed to test is in `build/us/SLUS_007.26.map` + `.run/wave_p31e/main/*.c` (4 preserved main drafts).
## 🛑 SESSION CHECKPOINT (REFRESHED 2026-08-15, overnight campaign mid-flight — do NOT close the phase)