eglantine-cirakg/src/core/file_sys, branch nx2

nup_writer: keep the dump's own layout for non-exefs/romfs entries

2026-11-03T00:12:54+00:00

file_sys: reject NUP tables with wrapping bounds or cyclic directories

2026-11-02T19:53:47+00:00

31b901b93b checked the TOC with unchecked arithmetic on counts and offsets read from the file. The record-table size (u64 count times record size) and u32 first_child + child_count can wrap, so the bounds checks pass and later reads go out of bounds; the same holds for the TOC range, name ranges, file extents and the meta range. A directory that lists its own ancestor as a child also made BuildDirTree recurse until the stack overflowed. Bound the counts by the TOC size before multiplying, compare ranges by subtraction, and widen the child range to u64. Walk the directory graph once after parsing with an explicit stack and reject cycles and nesting deeper than 128, so BuildDirTree can no longer recurse without bound. The file is rejected with ErrorNUPBadFormat. Assisted-by: Claude Sonnet 5.5 (implementation and commit message)

file_sys: decompress large NUP zstd members once

2026-11-02T19:53:47+00:00

31b901b93b only cached a zstd member while it fit the 512 MiB cache. Anything larger was never cached, so every Read() allocated the full uncompressed size and decompressed the whole extent again, which makes a multi-GB RomFS read in small chunks unusably slow. Members between 256 and 512 MiB evicted each other on alternate reads, and Insert copied the vector so memory briefly doubled. Two threads decompressing the same member also left a duplicate LRU entry and a wrong byte count. The writer emits one zstd frame per member, so there are no frame boundaries to seek by. Members larger than half the cache are now streamed once into a temporary file under the cache directory and read from there, using bounded memory. The file is removed when the container is released. Smaller members stay in the LRU, which now moves the vector in and ignores a duplicate insert. Assisted-by: Claude Sonnet 5.5 (implementation and commit message)

file_sys: let the NUP packer override and probe the name, icon and version

2026-11-02T16:23:47+00:00

PackOptions::metadata overrides the title name, icon and display version found in the dump. A version override is written to the base and to the newest update, since the NUP loader reads the version from the newest update first. ProbeMetadata reads what a dump would be packed with, the version coming from the newest update that reports one, else the base. Assisted-by: Claude Sonnet 5.5 (wrote the metadata overrides, ProbeMetadata and their test)

Merge nx2 into nx2-experimental

2026-11-02T13:43:01+00:00

Resolved by area: - audio feature_support.h: nx2's native revision handling. - fiber.cpp: ours, which also drops the unused rewind stack. - host_memory.cpp: ours granule bitmap and HintCold, plus nx2's fallocate hole punching per whole dirty granule on Linux. - texture_cache.h: nx2's old-age eviction pass, then our Collect(). - kepler_compute.cpp: shared upscale slots, then Fortune's Weave's, then the Kirby Air Riders scan. - nx2_gsv.h: ours, plus nx2's GetBufferMaxResolution and graphics device ids (1-based). - nvhost_ctrl_gpu.cpp: engine support flag bits 40-44. - lower_to_maxwell.h: ours as the base, with nx2's seven lowering commits applied one at a time. Second texture descriptor buffers are read bindless in TEX, TLD.SCR (level zero) and SUST; FSEL keeps its operand modifiers; TXD takes any channel mask. lower_to_maxwell.h lowers 837 Fortune's Weave and 1183 Mario Kart World shader dumps with the same rejects as nx2 and ours (12 and 0). Assisted-by: Claude Sonnet 5.5 (conflict analysis and drafting)

file_sys: add a deterministic NUP packer, Convert to NUP in Qt and eden-cli --pack-nup (#271)

2026-11-02T07:39:49+00:00

* file_sys: add a NUP packer for loose dumps Packs a loose dump (exefs/romfs, base/, updates// and dlc///) into a NUP v1 container with the aligned record layout. Every package is kept, files are deduplicated by SHA-256 and compressed with zstd unless that does not shrink them, and files over 256 MiB are stored raw. Output is byte-identical on every platform: compression is single-threaded with every frame parameter set explicitly, and zstd is always bundled so all builds use the same version. A low-storage mode deletes each source file once its extent is synced and journaled, and an interrupted run resumes from the journal. Assisted-by: Claude Opus 5.5 (wrote the packer, its EdenPack-free dump detection, the aligned record layout and the deterministic zstd setup; ran the Raiders and Donkey Kong Bananza packs and boot checks) * tests: cover the NUP packer Round-trips a dump through NupContainer, checks standalone updates, a bare exefs/romfs dump, low-storage resume and overwrite rejection, and pins the hash of a packed dump so changes to the output are deliberate. Assisted-by: Claude Opus 5.5 (wrote the tests, including the pinned output hash) * qt: add Convert to NUP to the game list Shown for loose dumps. Asks for confirmation with the estimated space, offers low-storage mode, runs in the background with progress and cancel, and resumes an interrupted low-storage conversion. Assisted-by: Claude Opus 5.5 (wrote the Convert to NUP action and its progress and resume handling) * cli: add --pack-nup [out.nup] Assisted-by: Claude Opus 5.5 (wrote the --pack-nup option)

nup_container: update record layouts to aligned NUP v1 fields

2026-11-02T02:38:53+00:00

nup_container: update record layouts to aligned NUP v1 fields

2026-11-02T01:41:05+00:00

Merge pull request #258 from Djihads80/nx2

2026-11-01T23:05:04+00:00

bring nx2-experimental up to date

loader: add NUP (Unencrypted (Archival) Package) container support

2026-11-01T18:53:47+00:00