Files
OpenSourcereR-dev 54d89306c0 v1.2.6: FW 8-13.x poke/breakpoints/watchpoints + FW-agnostic title/content/version + SIGPIPE crash fix
Makes the "initial" 8-13.x support from v1.2.5 actually functional.
HW-validated on FW 8.xx, 9.xx, 10.xx and 12.xx (all watchpoint types,
breakpoints, title id, content id, version etc.). FW-agnostic by design; 11/13.x
are lower-risk but not tested.

Memory write (poke) on FW >= 9:
- mdbg write op (0x13) is kernel-gated with EPERM on FW >= 9, so pokes
  failed. Route writes through a DMAP page-table walk (kernel_copyin on the
  physical alias) on FW >= 9; mdbg stays the path on < 9 and as a fallback.
- PROC_ALLOC pre-faults its pages so writes land on freshly-allocated
  demand-zero memory.

Breakpoints / watchpoints on FW 9.x-13.x:
- Extend the kernel-dbreg allowlist to 9.00-13.20; HW BP/WP were silently
  no-oping on 9.x+.
- SW (INT3) breakpoints write the 0xCC via the DMAP path (mdbg rejected it
  on FW >= 9).
- Clear DR6 after each debug exception: FW 11/12 stops re-delivering a
  HW BP/WP trap after a few hits when the sticky DR6 status is left set;
  plus re-arm the debug regs for data watchpoints.

Game ID / Content ID / Version - firmware-agnostic:
- Resolve title id and content id by pattern-scanning the proc struct
  instead of per-FW offsets (which shifted at 8.x and 12.x).
- Foreground-app command resolves the title id robustly so the param.sfo
  game version reads correctly on 12.x.

Console crash on client disconnect (SIGPIPE):
- Closing the client mid-operation raised SIGPIPE in the server thread and
  killed the host SceShellCore. Suppress it: MSG_NOSIGNAL on sends +
  SO_NOSIGPIPE on the sockets.

Load notification now shows the running firmware version, and the credits
line was updated.

Documentation:
- Rewrote PROTOCOL.md against the v1.2.6 sources (commands, packet structs,
  status/bit-swap semantics, scan/xref wire formats, enums).
- Corrected and expanded README: per-release firmware support table with
  verification status, and accuracy fixes throughout.

Bump version 1.2.5 to 1.2.6.
2026-06-02 19:40:48 +00:00
..