bpo-29324 update test_socket AEAD test for kernel 4.9 and up by matejcik · Pull Request #133 · python/cpython

(cherry picked from commit 9764c15)

(cherry picked from commit 9764c15)

Per theologian W27c audit 00:06:36Z + supervisor 00:07:10Z (a)
local-accumulate posture; conversion python#1 in the 5-method PARTIAL
backlog. Cat A pure dispatch-glue: C++ wrapper becomes 10-line
BytecodeInstruction-extraction stub; new C orchestrator
hir_builder_emit_load_attr_c wires together the existing C
sub-functions (load_attr_slot_c, load_attr_module_c,
load_attr_instance_value_c, load_attr_generic_c, load_method_c)
that already live in builder_emit_c.c.

Honest ratio framing per librarian D-1776879377 / D-1776880214:
post-conversion 96/100 PURE-CONVERTED + 4 PARTIAL Cat-B remaining
(was 95/100 + 5 PARTIAL). emitLoadAttr is now a delegation stub,
not pure-C++-eliminated; same metric reading as the established
honest-scope record.

Cat A nature: zero behavior change, pure C++→C dispatch move.
Snapshot-before-pop discipline preserved (Bug 7 / Phoenix-introduced
fix carried over).

VERIFICATION (testkeeper 00:48:33Z, x86_64 release at this HEAD):
- Build: PASS (binary 1777076003)
- JIT smoke (force_compile add/mul/fib): PASS
- nbody crash check (3 iters identical): PASS
- W-RE-PARSER substrate-stability check (per generalist 00:19:14Z
  + pythia python#133 python#2 challenge): OUTCOME 1 confirmed — sentinel
  fingerprint preserved (same Tokenizer.__next + Tokenizer.match
  + SubPattern.__getitem__ + SubPattern.getwidth detach sequence
  → SEGV). Substrate stable; W-RE-PARSER repro replayable on
  post-W27c-python#1 HEAD. Pythia python#133 python#2 substrate-shift risk
  FALSIFIED at this commit.

DEFERRED VERIFICATION:
- Full Phoenix test suite + ABBA 4-bench gate: BLOCKED on system
  load (avg 170-300, 132 python processes from team-parallel
  builds; per feedback_benchmark_protocol.md no benchmarks under
  contention). testkeeper to re-run when load drops.

PUSH DEFERRED: per supervisor 00:07:10Z (α) ARM64-debt-cap
discipline (currently 4/5 from pushes 50/51/52/53). Bundle with
future W27c python#2/python#3 commits once devgpu004 SSH-2FA infra restored
+ system load returns to normal + full ABBA verifies perf floor.

Auth chain: theologian audit + APPROVE 00:11:50Z; supervisor
authorization 00:07:10Z (α) local-accumulate; testkeeper
verification 00:48:33Z (4 checks PASS, 2 deferred under load).

Per theologian W27c pair-batch design 00:08:52Z + supervisor (α)
local-accumulate posture. Conversion #2a in the 5-method PARTIAL
backlog (now 4 → 3 PARTIAL Cat-B remaining); paired with W27c #2b
emitCallExceptionHandler which reuses the same opcode-array helper.

Cat B residue elimination: pre-resolve loop that previously ran
on the C++ side (PyTuple_GET_ITEM(co_consts) for LOAD_CONST/
RETURN_CONST + getBlockAtOff for JUMP_BACKWARD*) is moved into
a new C helper build_inline_except_opcode_array_c in
builder_emit_c.c. Helper iterates via JitBytecodeInstr
(cinderx/Jit/bytecode_c.h), allocates via PyMem_RawMalloc, and
mirrors the original terminator-detection logic byte-for-byte
(RETURN_VALUE / RETURN_CONST / JUMP_BACKWARD* recognized; default
out-of-pass-through-set → deopt-terminator).

Signature change: hir_builder_emit_inline_exception_match_c drops
(opcodes, opcode_count) params; builds opcode array internally
from PyCodeObject (via tc->frame.code) + builder block_map +
except_body_offset. C++ stub shrinks from ~70 lines to ~25, just
picks getitem_fn and passes JITRT_MatchAndClearException pointer.

Helper is intentionally reusable for W27c #2b emitCallExceptionHandler
which has the same shape (handler bytecode iteration with same
pre-resolve + terminator semantics).

Honest ratio framing per librarian D-1776879377 / D-1776880214:
post-conversion 97/100 PURE-CONVERTED + 3 PARTIAL Cat-B remaining
(was 96/100 + 4 PARTIAL after W27c python#1). emitInlineExceptionMatch
is now a delegation stub with C-side residue elimination, not
pure-C++-eliminated; same metric reading as the established
honest-scope record.

Memory line 50 ('no Python.h in JIT C headers transitional') is
about HEADERS — .c TUs may include Python.h directly per existing
pattern in builder_emit_c.c (already includes Python.h via
hir_c_api.h transitively + cinderx/Common/code.h directly).

VERIFICATION (testkeeper 01:45:23Z + 05:39:16Z deferred-verify,
x86_64 release at this HEAD on top of 7bfb7d1 W27c python#1):
- Build: PASS (binary 1777081390)
- JIT smoke (force_compile add/mul/fib): PASS
- nbody crash check (3 iters identical): PASS
- W-RE-PARSER substrate-stability (3-outcome per generalist
  00:19:14Z + pythia python#133 python#2 challenge): OUTCOME 1 confirmed —
  same 4-method deopt-detach trace as pre-W27c-python#1 baseline AND
  post-W27c-python#1 baseline (Tokenizer.__next + Tokenizer.match +
  SubPattern.__getitem__ + SubPattern.getwidth detach → SEGV).
  Substrate stable across W27c python#1+#2a; W-RE-PARSER repro
  replayable. Pythia python#133 python#2 substrate-shift risk FALSIFIED.
- Phoenix CPython suite (43,990 tests, 499/511 modules):
  ZERO new JIT regressions. 8 PreExistingProven env/infra
  failures (test_gdb x2, test_cmd_line, test_pdb,
  test_peg_generator, test_posixpath, test_urllib, test_urllib2)
  match docs/gates/a45aa5b69c.log baseline. +1 expected
  test_phoenix_re_parser_jit_crash sentinel SEGV (locally
  un-skipped W-RE-PARSER, not part of this commit).
- ABBA 4-bench (docs/benchmarks/abba_w27c2a_2026-04-24.md):
  fibonacci 2.28x / nqueens 1.61x / gen_simple 0.74x /
  func_calls 0.99x → geo 1.28x ≥ 1.0x hard floor. Per-bench
  parity with pinned baseline (fibonacci 2.18x baseline,
  gen_simple 0.74x baseline EXACT match).

PUSH DEFERRED: per supervisor (α) accumulation. Bundle with
W27c python#1 (7bfb7d1) + queued W27c #2b for push 54 once ARM64
verify completes on devgpu004 (server reboot done; ARM64
connectivity restored 16:53Z).

Auth chain: theologian design 00:08:52Z + APPROVE 01:13:25Z;
supervisor (α) authorization 00:07:10Z + 00:50:09Z; testkeeper
01:45:23Z substrate-stability + 05:39:16Z full deferred-verify.