999sian f84d869795 [Kernel] Match path cache comparisons to host filesystem case sensitivity (#381) ...

The negative-stat cache and the apr file-size cache memoize host
filesystem probe outcomes, but both were keyed with an ignore-case
comparer while the probes themselves (File.Exists/Directory.Exists/
FileInfo) are case-sensitive on Linux. That aliases distinct paths:

- stat("/app0/DATA.BIN") fails, the miss is cached, and a later
  stat("/app0/Data.bin") is answered NOT_FOUND from the cache without
  ever probing the disk - even though the file exists and the probe
  would succeed.
- sceKernelAprResolveFilepathsToIdsAndFileSizes serves the cached size
  of a case-distinct sibling file instead of the file's own size.

The registered-mount containment guard had the inverse problem: the
ignore-case StartsWith accepted a ".." path that resolves into a
sibling directory differing from the mount root only by case
("…/Save" vs "…/save"), letting guest I/O escape the mount.

All three sites now compare with the host filesystem's semantics:
ordinal-ignore-case on Windows, ordinal elsewhere. Windows behavior is
unchanged. Tests probe actual host filesystem behavior with real temp
files and skip their case-specific sections on case-insensitive hosts.

2026-07-18 13:36:01 +03:00

..

SharpEmu.Libs.Tests

[Kernel] Match path cache comparisons to host filesystem case sensitivity (#381)

2026-07-18 13:36:01 +03:00

SharpEmu.SourceGenerators.Tests

[SourceGenerators] Compile-time SysAbi export registry, analyzers, and build-generated aerolib.bin (#204)

2026-07-16 00:00:32 +03:00