* [Core/Dlsym] Restore normalize-dlsym-arguments and deferred bootstrap tracing from PR #94
PR #216 regressed two critical features from PR #94:
1. NormalizeKernelDynlibDlsymArguments — handles argument reordering
when standalone bootstrap loaders call sceKernelDlsym through the
bridge with (symbol_ptr, handle, out) instead of the standard
(handle, symbol_ptr, out). Without this, payloads like elfldr-ps5
and websrv-ps5 fail with a deterministic UnmanagedCallersOnly
fail-fast.
2. Deferred bootstrap tracing — ring-buffered import logging that
drains after the hot path, avoiding per-call Console.Error I/O.
Also restored:
- CompleteKernelDynlibDlsymFailure — centralized error handling
- IsPlausibleDynlibSymbolPointer — pointer bounds validation
- COW snapshot of _importEntries in ProbeReturnRip
- ResetLazyDlsymStubState and lazy-dlsym field infrastructure
- DraftDrainDeferredBootstrapTraces in Execute() finally block
Fixes#530, fixes#531
* fix: remove orphaned _importNidHashCache.Clear() reference
The field _importNidHashCache no longer exists on main (removed post PR #94).
The 3-way merge incorrectly restored the .Clear() call without the field
declaration, causing a build failure on all platforms.
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Co-authored-by: tru3 <tru3@tru3.com>
When sceKernelWaitSema finds the count insufficient it increments
WaitingThreads, releases the semaphore gate, and calls
RequestCurrentThreadBlock to set the thread-static block flags. A
signal arriving before the scheduler registers the block metadata
is missed by WakeBlockedThreads — the waiter has not been
registered yet and the signal's wake iteration skips it.
The scheduler's exit handler already re-checks TryWake() after
setting the thread to Blocked, but that requires the thread to
fully exit to the scheduler and back. Instead, re-check the
semaphore count under the gate immediately after the block request:
if the count is now sufficient, consume the tokens, cancel the
pending block via TryConsumeCurrentThreadBlock, and return without
ever yielding to the scheduler.
Co-authored-by: tru3 <tru3@tru3.com>
Add sceNpWebApi2PushEventCreateFilter (NID: MsaFhR+lPE4) to the
libSceNpWebApi2 module. This function is called by Unity games
during initialization and was unresolved, causing an import warning
and returning ORBIS_GEN2_ERROR_NOT_FOUND.
The stub validates the library context and returns an incrementing
filter handle, following the same pattern as the existing
sceNpWebApi2PushEventCreateHandle.
NID sourced via:
python scripts/aerolib_catalog.py lookup MsaFhR+lPE4
Co-authored-by: tru3 <tru3@tru3.com>
When TryAllocateAtExact fails for the main image base (0x800000000
for PS5, 0x400000 for PS4), the loader previously threw a fatal
InvalidOperationException with no recovery path. This happens when
the host OS has already claimed part of that address range — common
under Rosetta 2, with aggressive ASLR, or when another process maps
into the guest address space.
Instead of failing immediately, attempt TryBackFixedRange which
backs the range page by page, claiming any free gaps. If the
backfill also fails, Clear() rolls back partial allocations and
the exception now includes platform-specific recovery advice.
This prevents the most common emulator startup crash on affected
hosts.
Co-authored-by: tru3 <tru3@tru3.com>
Add sceFontGetVerticalLayout (NID: 3BrWWFU+4ts) to the Font module,
completing the vertical-text counterpart to the existing
GetHorizontalLayout. The SceFontVerticalLayout structure is three
floats (baseline, lineAdvance, decorationExtent) interpreted for
vertical writing such as CJK text rendered top-to-bottom.
- Write baseline=8.0f, lineAdvance=16.0f, decorationExtent=0.0f
- Validate output pointer and return INVALID_ARGUMENT on null
- Return MEMORY_FAULT when guest writes fail
Tests:
- GetVerticalLayout_WritesExactlyThreeFloats with sentinel guard
- GetVerticalLayout_NullBuffer_ReturnsInvalidArgument
NID sourced via: python scripts/aerolib_catalog.py lookup sceFontGetVerticalLayout
Co-authored-by: tru3 <tru3@tru3.com>
