# AUDIT-040 canary patch — extends audit-030 TrapLogLR helper to log
# r3..r10 + r28..r31 plus a 32-byte memdump from r4 and r5 (the two source
# pointers passed into sub_8244FC90). Total +56 LOC across 4 files. Applied
# 2026-05-09 then reverted at session close; `git status` clean afterwards.
#
# Files changed:
#   src/xenia/cpu/backend/x64/x64_emitter.cc  (+43)  TrapLogLR + dump_bytes
#   src/xenia/cpu/cpu_flags.cc                 (+5)  log_lr_on_pc cvar
#   src/xenia/cpu/cpu_flags.h                  (+2)  DECLARE_uint64
#   src/xenia/cpu/ppc/ppc_hir_builder.cc       (+6)  Trap(100) emit on PC match
#
# Build: cd build/ && ninja -f build-Debug.ninja xenia_canary
#
# The TrapLogLR helper now reads:
#   ctx->r[3..10], ctx->r[28..31], ctx->lr
#   thread_state->memory()->TranslateVirtual<const uint8_t*>(r4)  -> 32 bytes
#   thread_state->memory()->TranslateVirtual<const uint8_t*>(r5)  -> 32 bytes
#
# Output format:
#   TRACE-PC-LR pc=8244FC90 lr=82450440 r3=BC65CD00 r4=701CF580 ... r31=701CF3C0
#   TRACE-PC-LR r4* addr=701CF580 bytes=F800008C 00000000 ...  (8 dwords hex)
#   TRACE-PC-LR r5* addr=BC79C960 bytes=820B57D0 FFFFFFFF ...  (8 dwords hex)
#
# Reusable for other ctor-input investigations: change --log_lr_on_pc value;
# reinterpret r4*/r5* dumps based on the target function's argument convention.