feat(prx): unknown loader tripwires for TLOU

[Pouare514]

What

Raw-NID exports for 14 loader unknowns hit while booting TLOU Part I (Net, libc, SystemService, Http, Http2, Voice, Trophy2, libkernel, SessionSignaling), following the Agc unknown precedent. Unknown names/signatures recorded in TechnicalDebt. Anything actually called throws with its name instead of failing the load with an unnamed import.

Tested

Windows 11, MinGW GCC 15.2.0. Verified all 14 NIDs present in the built .prx\ files. Full \ctest -E agc_driver_graphics|guest_rendering_wait: 93/93.

Checklist

• Based on current \main; no other open PR implements the same functions
• One topic per PR; follow-ups go in a new PR
• No comments in code except technical debt
• Unimplemented paths throw; silent stubs are listed in TechnicalDebt
• No notes, investigation .md\ files or images added to the repository
• New third-party code is a submodule built from source
• Generic behaviour, not specific to one title
• Depends on: none
• AI-assisted: yes

[github-actions]

Progress report (9651ec9 → 20cbc8e)

📉 System libraries: 78.89% (-0.25%, +10 declared functions)

🆕 10 declared as stubs

Library	Name
libSceHttp	sceHttpParseResponseHeader
libSceHttp2	sceHttp2GetMemoryPoolStats
libSceNet	sceNetGetMemoryPoolStats
libSceNpSessionSignaling	sceNpSessionSignalingGetConnectionStatistics
libSceNpSessionSignaling	sceNpSessionSignalingGetMemoryInfo
libSceNpTrophy2	sceNpTrophy2UnregisterUnlockCallback
libSceSystemService	sceSystemServiceDisableMediaPlay
libSceSystemService	sceSystemServiceReenableMediaPlay
libSceVoice	sceVoiceSetMuteFlag
libc	snwprintf_s

[oneandonlydean]

Thanks for these. This needs a rebase: it conflicts with main in libSceHttp, libSceNpSessionSignaling, libkernel/Unimplemented.cpp and TechnicalDebt.md, and rWSuTWY2JN0 (libc/Export.cpp) and teiItL2boFw (libkernel/Unimplemented.cpp) are exported on main already, so those two can be dropped. Also, 0hlfW1O4Aa4 is a libc export here but #407 adds the same NID to libSceAmpr. Do you know which library the title imports it from?

[Pouare514]

Done, rebased: dropped rWSuTWY2JN0 and teiItL2boFw (on main), hPTXo3bICzI renumbered to sceHttpUnknown02, rMyh97BU5pY to sceNetUnknown01. Two findings while rebasing: GlelR9EEeck computes to the same NID as cbrtf (already implemented), so dropped as well. For 0hlfW1O4Aa4: Deathloop imports it from libSceAmpr (IMPORT_LIB index 48, verified from the ELF dynamic section), and TLOU only references that one NID out of Ampr's whole surface, so I removed it from libc here and kept it in #407's Ampr. libs rebuilt clean.

[oneandonlydean]

Thanks for the rebase, and good catch on GlelR9EEeck being cbrtf. Three things in the new head:

• It deletes main's sceNpSessionSignalingGetConnectionStatus, the implementation with the real signature. The duplicate I mentioned on fix(libs): TLOU runtime funcs for Net (getpeername, htonll/ntohll) #302 was the (void) one there; this one has to stay.
• The TechnicalDebt hunk also deletes seven lines that are on main (X+4jdIS75P0, AOWqIYsgVHs, GQTObcITIXI, BnMAMrsfVWo, the "AudioPropagation, AudioIn, NpSessionSignaling and PlayerInvitationDialog" line, sceAvPlayerStartEx and sceAvPlayerInit / sceAvPlayerInitEx), the same as on feat(prx): stub TextToSpeech2, Vdecsw and Coredump unknown exports #301.
• All ten NIDs here have known names, which I checked by recomputing each NID from the name:

NID	Name
hPTXo3bICzI	sceHttpParseResponseHeader
otUQuZa-mv0	sceHttp2GetMemoryPoolStats
rMyh97BU5pY	sceNetGetMemoryPoolStats
lbXTXRG5nyM	sceNpSessionSignalingGetMemoryInfo
+Q++Q49a9z8	sceNpSessionSignalingGetConnectionStatistics
wVqxM58sIKs	sceNpTrophy2UnregisterUnlockCallback
64nkF7LGk8w	sceSystemServiceDisableMediaPlay
uInYhy7xa+U	sceSystemServiceReenableMediaPlay
gwUynkEgNFY	sceVoiceSetMuteFlag
jbj2wBoiCyg	snwprintf_s

Exporting them under these names also avoids the clash with #407, which uses sceHttpUnknown02 and sceNetUnknown01 for different NIDs. Their TechnicalDebt lines would then say "unknown signature". The red Windows job is the guest_audio_in_no_device flake that #532 fixed.

[Pouare514]

Done all three: restored main's sceNpSessionSignalingGetConnectionStatus implementation and the seven TechnicalDebt lines; exported all ten NIDs under their recomputed real names as plain functions (no APS5_EXPORT, so nid_patcher resolves each to its NID with no duplicates — verified with a clean local libs build), with unknown signature TechnicalDebt lines. This also clears the sceHttpUnknown02/sceNetUnknown01 clash with #407. Also dropped the stray AudioIn hunk from this branch.

[oneandonlydean]

Thanks, that covers all three: main's sceNpSessionSignalingGetConnectionStatus and the seven TechnicalDebt lines are back, and the ten NIDs are exported under their real names with "unknown signature" lines. No other open PR exports any of these names or NIDs now.

It needs one more rebase: #555 (now on main) added sceHttpCreateRequest2 and friends at the end of libSceHttp/Export.cpp, which conflicts with sceHttpParseResponseHeader, and TechnicalDebt.md conflicts as well. Keeping both sides works; with that, libs builds here and the full ctest passes.

While rebasing, could you leave main's sceNpSessionSignalingGetConnectionStatus body as it is? The hunk there now only re-indents it, and the same goes for the deleted blank line above sceHttpUnknown00. After the rebase it's ready to merge from my side.

[Pouare514]

Rebased onto current main, keeping both sides in libSceHttp/Export.cpp (#555's CreateRequest2 and friends plus sceHttpParseResponseHeader) and TechnicalDebt.md. Main's sceNpSessionSignalingGetConnectionStatus body is now byte-identical to main, and the blank line above sceHttpUnknown00 is restored — the Http and SessionSignaling diffs are purely additive now. libs builds and full ctest (221 tests) passes locally.

[github-actions]

Other open pull requests touch the same code. Merging one will break the other, or both implement the same thing. If this one builds on them, list them in Depends on.

Pull request	Conflicting files (lines on main)	Same exports	Same new files
#582	docs/dev/TechnicalDebt.md L59

[oneandonlydean]

Thanks. After the rebase the diff only adds code: main's sceNpSessionSignalingGetConnectionStatus body and the blank line in libSceHttp are untouched, #555's functions are kept, and the ten names still recompute to their NIDs with "unknown signature" lines. No other open PR or main exports any of them. CI is green on the new head.

Ready to merge from my side. When it lands, #407, #545 and #550 each need a one-line TechnicalDebt.md rebase, because they all append to the end of "Unknown function info" (#545 also appends to the end of libc/src/RuntimeSupport.cpp).