cc -O2 -Wall -o /tmp/mmap_ofs /tmp/mmap_ofs_overflow.c
cc -O2 -Wall -o /tmp/mmap_alias_rw /tmp/mmap_alias_rw.c
cc -O2 -Wall -o /tmp/sanity_mmap /tmp/sanity_mmap.c
(no warnings; BUILD-OK from vm.sh run_root on the audio-attached guest, 2026-09-16; identical commands succeeded on both the stock baseline boot and the fix-v2 boot)