Files
Xenia-Canary/src/xenia/kernel/kernel_flags.h
MechaCat02 07f09f8fe0 [Audit] round 24: signal-path probes (XEvent::Set + IO + NtDuplicateObject)
Adds AUDIT-HLC probes for every path that signals an XEvent or duplicates
its handle, so the round-23 puzzle (waits completing without visible
NtSetEvent/KeSetEvent) can be cross-referenced by underlying X_KEVENT VA
and by primary handle.

  * NtCreateEvent_inner: always log kevent_va for handle/VA cross-ref
  * XEvent::Set: universal hook prints primary handle + kevent_va + LR;
    catches all paths into the event regardless of shim used
  * NtSetEvent: extended with PPC back-chain walk for caller's guest_lr
    (same idiom as the wait probe), so the signaler function is
    immediately identifiable
  * NtReadFile / NtReadFileScatter / NtWriteFile: log when signal_event
    path fires ev->Set() inline at IO completion (bypasses both
    NtSetEvent and KeSetEvent shims)
  * CompleteOverlappedEx (kernel_state.cc): log when overlapped event
    is signaled at completion
  * NtDuplicateObject: log src/dst handle pair (round-24 confirmed silph
    event is dup'd before signaling, explaining the handle-mismatch
    puzzle between NtSetEvent's `handle=` argument and XEvent::Set's
    primary handle())

Result: silph wait at sub_821CB030+0x1B0 on handle F80000A0 is signaled
via NtSetEvent on handle F80000A8 (the duplicate created by sub_8245D9D8
at lr=0x82450DF4 inside the worker chain sub_82450A28 ← 0xA68 ← 0xB68).
Verdict A confirmed: signaler exists and is reachable, but round-17.β
missed it because the search keyed on the wrong handle. No bypass path;
the worker chain is identical between canary and ours-impl, but ours
signals different handles (work-item queue divergence at sub_82452DC0).

Audit-only diagnostic. No semantic changes. Net delta +86 LOC across 7
files. All probes gated on the existing audit_handle_lifecycle cvar
(default off). Tested via Sylpheed boot (35 s, 4 MB log). Audit-handle-
lifecycle-probes branch, local-only.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-07-12 15:43:23 +02:00

20 lines
785 B
C

/**
******************************************************************************
* Xenia : Xbox 360 Emulator Research Project *
******************************************************************************
* Copyright 2013 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. *
******************************************************************************
*/
#ifndef XENIA_KERNEL_KERNEL_FLAGS_H_
#define XENIA_KERNEL_KERNEL_FLAGS_H_
#include "xenia/base/cvar.h"
DECLARE_bool(headless);
DECLARE_bool(log_high_frequency_kernel_calls);
DECLARE_bool(audit_handle_lifecycle);
DECLARE_uint32(audit_track_event_handle);
#endif // XENIA_KERNEL_KERNEL_FLAGS_H_