All symbols starting with `h' in kern

• hardclock kern/kern_clock.c:136
• hashinit kern/kern_subr.c:197
• holdrele kern/vfs_subr.c:929
• hostid kern/kern_sysctl.c:179
• hostname kern/kern_sysctl.c:177
• hostnamelen kern/kern_sysctl.c:178
• hw_sysctl kern/kern_sysctl.c:61
• hzto kern/kern_clock.c:331