2026-09-02 (ps5 native execution) targeted SDK dictionary, procparam inspection, and PRX module contract

Resolved the native PS5 process startup blocker 0x80020063 (SCE_KERNEL_ERROR_ESDKVERSION), decoupled SDK versioning into an external dictionary, canonized procparam auditing in 048-selfaudit, and uncovered the PT_SCE_MODULE_PARAM contract on hardware.

  1. Targeted SDK builds and external dictionary (D297):

    • Created selfish/data/sdk-versions.toml mapping human-readable version strings (e.g. "2.000.009", "8.050.001"), aliases (ps5-native, ps5-current, ps4-compat), generations, and descriptions outside of source code.
    • Implemented selfish-container::sdk::SdkDictionary with validation against console generations (rejecting Gen-5 Prospero versions for Gen-4 packages and vice versa).
    • Added patch_elf_procparam() to locate PT_SCE_PROCPARAM and stamp both sdk_version and sdk_version_second.
    • Exposed --sdk on selfish-cli wrap, obscene-tool mkself, and Makefile. Default for native is ps5-native (0x08050001 / 0x02000009).
    • Verified on PS5 FW 12.40 hardware: [KERNEL] INFO: SDK vesion: PS4:08050001 PPR:02000009. SCE_KERNEL_ERROR_ESDKVERSION is completely resolved.

  2. libc_param and SIGSEGV at 0x28 diagnosis (D298):

    • Setting .libc_param = 0 caused an immediate SIGSEGV page fault at address 0x0000000000000028 inside libkernel.sprx during startup.
    • Restored .libc_param = &obs_libc_param: libkernel, libSceLibcInternal, libSceSysmodule, and libSceAmpr loaded cleanly without memory faults.

  3. PT_SCE_MODULE_PARAM contract identified (D298):

    • After the eboot's primary libraries loaded, libSceSysmodule reported PRX_SCE_MODULE_LOAD_ERROR (0xa0020102) ("Lack of a .prx file in /app0/sce_module is detected").
    • Investigation identified that PS5 PRX modules require program header PT_SCE_MODULE_PARAM (0x61000002), which carries module parameters including SDK version (0x08050001 / 0x02000009).
    • Adding PT_SCE_MODULE_PARAM directly to our synthetic src/probe/sce_module.c satisfies libSceSysmodule, allowing modules to build completely from open source.

  4. Canonized PT_SCE_PROCPARAM audit in 048-selfaudit (D299):

    • Extended 048-selfaudit/container-structure in src/probe/sections/selfaudit.c to locate and read PT_SCE_PROCPARAM, reporting ps4_sdk, ppr_sdk, and libc/mem pointers.
    • Verified that both host harness (make check) and tooling tests (all 209 unit tests) pass cleanly.

  5. End-to-end native execution on PS5 hardware (10,112 OBS records):

    • Integrated PT_SCE_MODULE_PARAM (0x61000002) directly into link/library.ld and src/probe/sce_module.c, and omitted libSceFios2 for Gen-5.
    • Closed stuck processes cleanly via Home Menu (avoiding POSIX kill signals that bypass VSH app lifecycle state).
    • Deployed the complete native build to /user/data/homebrew/PPSA99980 via ./bin/obscene native --deploy.
    • Executed launch PPSA99980 on console FW 12.40: process ran natively without errors or faults, executing sections 000-boot through 910-bulk.
    • Captured full live run report in reports/hardware/console-native-run.txt: 10,112 records, tally 122|12|381|54, concluding cleanly at OBS|end|puts.