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Two previously-untested syscalls now have integration coverage:
- getrandom (Security family, READ_CLASSIFIED): new security-getrandom
scenario fills a 32-byte buffer via unix.Getrandom, looping past any
signal-interrupted short reads so the cumulative byte count is strictly
positive. TestSecurityGetrandom asserts enter_getrandom MinCount>=1,
bytes>=1 (locking in the READ byte-count classification end-to-end), and
a positive duration.
- flock (FamilyFS, KindFd@args[0], UNCLASSIFIED): new flock-basic scenario
opens a temp file, takes LOCK_EX then LOCK_UN via syscall.Flock, and
closes it. TestFlockBasic asserts enter_flock with PathContains the temp
filename, confirming the fd resolves to the file path via the procfd
cache.
Both scenarios use raw unix/syscall calls so the exact sys_enter tracepoints
fire, and are registered in cmd/ioworkload/scenarios.go.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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