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_atomic64e.h
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_atomic_subword.h
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_bitset.h
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_bus_dma.h
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_callout.h
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_cpuset.h
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_cscan_atomic.h
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_eventhandler.h
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_iovec.h
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_lock.h
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_lockmgr.h
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_mutex.h
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_null.h
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_pctrie.h
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_pthreadtypes.h
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_rangeset.h
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_rmlock.h
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_rwlock.h
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_semaphore.h
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_seqc.h
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_sigset.h
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_smr.h
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_sockaddr_storage.h
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_stack.h
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_stdint.h
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_sx.h
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_task.h
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_termios.h
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_timeval.h
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aac_ioctl.h
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abi_compat.h
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acct.h
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acl.h
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agpio.h
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aio.h
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alq.h
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apm.h
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arb.h
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assym.h
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ata.h
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atomic_common.h
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auxv.h
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backlight.h
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bio.h
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bitset.h
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bitstring.h
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blist.h
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blockcount.h
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boot.h
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buf.h
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buf_ring.h
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bufobj.h
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bus.h
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bus_dma.h
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bus_dma_internal.h
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busdma_bufalloc.h
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callout.h
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caprights.h
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capsicum.h
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cdefs.h
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cdio.h
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cdrio.h
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cfictl.h
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chio.h
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ck.h
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clock.h
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cnv.h
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compressor.h
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condvar.h
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conf.h
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cons.h
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consio.h
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copyright.h
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counter.h
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coverage.h
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cpu.h
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cpuctl.h
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cpuset.h
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csan.h
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ctype.h
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devctl.h
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devicestat.h
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devmap.h
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dirent.h
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disk
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disk.h
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disk_zone.h
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disklabel.h
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diskmbr.h
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dkstat.h
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dnv.h
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domain.h
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domainset.h
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dtrace_bsd.h
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dvdio.h
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efi.h
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efiio.h
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elf.h
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elf32.h
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elf64.h
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elf_common.h
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elf_generic.h
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endian.h
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epoch.h
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errno.h
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eui64.h
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event.h
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eventfd.h
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eventhandler.h
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eventvar.h
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exec.h
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extattr.h
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fail.h
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fbio.h
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fcntl.h
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fdcio.h
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file.h
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filedesc.h
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filio.h
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firmware.h
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fnv_hash.h
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font.h
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gmon.h
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gpio.h
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gpt.h
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gsb_crc32.h
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gtaskqueue.h
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hash.h
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hhook.h
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iconv.h
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imgact.h
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imgact_aout.h
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imgact_binmisc.h
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imgact_elf.h
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interrupt.h
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intr.h
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ioccom.h
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ioctl.h
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ioctl_compat.h
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iov.h
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iov_schema.h
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ipc.h
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ipmi.h
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jail.h
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joystick.h
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kbio.h
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kcov.h
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kdb.h
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kenv.h
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kern_prefetch.h
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kernel.h
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kerneldump.h
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khelp.h
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kobj.h
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kpilite.h
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ksem.h
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kthread.h
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ktls.h
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ktr.h
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ktr_class.h
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ktrace.h
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libkern.h
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limits.h
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link_aout.h
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link_elf.h
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linker.h
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linker_set.h
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lock.h
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lock_profile.h
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lockf.h
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lockmgr.h
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lockstat.h
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loginclass.h
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mac.h
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malloc.h
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mbuf.h
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mchain.h
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md4.h
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md5.h
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mdioctl.h
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memdesc.h
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memrange.h
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mman.h
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module.h
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module_khelp.h
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mount.h
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mouse.h
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mpt_ioctl.h
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mqueue.h
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msg.h
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msgbuf.h
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mtio.h
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mutex.h
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namei.h
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nlist_aout.h
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nv.h
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osd.h
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param.h
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pciio.h
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pcpu.h
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pctrie.h
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physmem.h
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pidctrl.h
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pipe.h
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pmc.h
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pmckern.h
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pmclog.h
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poll.h
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posix4.h
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power.h
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priority.h
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priv.h
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prng.h
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proc.h
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procctl.h
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procdesc.h
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procfs.h
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protosw.h
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ptio.h
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ptrace.h
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qmath.h
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queue.h
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racct.h
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random.h
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rangelock.h
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rangeset.h
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rctl.h
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reboot.h
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refcount.h
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regression.h
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resource.h
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resourcevar.h
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rman.h
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rmlock.h
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rtprio.h
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runq.h
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rwlock.h
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sbuf.h
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sched.h
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sdt.h
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select.h
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selinfo.h
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sem.h
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sema.h
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seqc.h
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serial.h
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sf_buf.h
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sglist.h
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shm.h
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sigio.h
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signal.h
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signalvar.h
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sleepqueue.h
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slicer.h
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smp.h
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smr.h
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smr_types.h
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snoop.h
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sockbuf.h
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socket.h
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socketvar.h
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sockio.h
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sockopt.h
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soundcard.h
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specialfd.h
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spigenio.h
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stack.h
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stat.h
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stats.h
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statvfs.h
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stdatomic.h
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stddef.h
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stdint.h
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sx.h
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syscall.h
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syscall.mk
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syscallsubr.h
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sysctl.h
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sysent.h
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syslimits.h
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syslog.h
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sysproto.h
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systm.h
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taskqueue.h
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terminal.h
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termios.h
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thr.h
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tiio.h
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tim_filter.h
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time.h
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timeb.h
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timeet.h
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timeffc.h
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timepps.h
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timers.h
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times.h
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timespec.h
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timetc.h
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timex.h
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tree.h
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tslog.h
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tty.h
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ttycom.h
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ttydefaults.h
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ttydevsw.h
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ttydisc.h
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ttyhook.h
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ttyqueue.h
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turnstile.h
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types.h
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ucontext.h
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ucred.h
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uio.h
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umtx.h
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un.h
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unistd.h
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unpcb.h
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user.h
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utsname.h
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uuid.h
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vdso.h
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vmem.h
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vmmeter.h
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vnode.h
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vtoc.h
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wait.h
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watchdog.h
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Editing: interrupt.h
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 1997, Stefan Esser <se@freebsd.org> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice unmodified, this list of conditions, and the following * disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _SYS_INTERRUPT_H_ #define _SYS_INTERRUPT_H_ #include <sys/_lock.h> #include <sys/_mutex.h> #include <sys/ck.h> struct intr_event; struct intr_thread; struct trapframe; /* * Describe a hardware interrupt handler. * * Multiple interrupt handlers for a specific event can be chained * together. */ struct intr_handler { driver_filter_t *ih_filter; /* Filter handler function. */ driver_intr_t *ih_handler; /* Threaded handler function. */ void *ih_argument; /* Argument to pass to handlers. */ int ih_flags; char ih_name[MAXCOMLEN + 1]; /* Name of handler. */ struct intr_event *ih_event; /* Event we are connected to. */ int ih_need; /* Needs service. */ CK_SLIST_ENTRY(intr_handler) ih_next; /* Next handler for this event. */ u_char ih_pri; /* Priority of this handler. */ }; /* Interrupt handle flags kept in ih_flags */ #define IH_NET 0x00000001 /* Network. */ #define IH_EXCLUSIVE 0x00000002 /* Exclusive interrupt. */ #define IH_ENTROPY 0x00000004 /* Device is a good entropy source. */ #define IH_DEAD 0x00000008 /* Handler should be removed. */ #define IH_SUSP 0x00000010 /* Device is powered down. */ #define IH_CHANGED 0x40000000 /* Handler state is changed. */ #define IH_MPSAFE 0x80000000 /* Handler does not need Giant. */ /* * Describe an interrupt event. An event holds a list of handlers. * The 'pre_ithread', 'post_ithread', 'post_filter', and 'assign_cpu' * hooks are used to invoke MD code for certain operations. * * The 'pre_ithread' hook is called when an interrupt thread for * handlers without filters is scheduled. It is responsible for * ensuring that 1) the system won't be swamped with an interrupt * storm from the associated source while the ithread runs and 2) the * current CPU is able to receive interrupts from other interrupt * sources. The first is usually accomplished by disabling * level-triggered interrupts until the ithread completes. The second * is accomplished on some platforms by acknowledging the interrupt * via an EOI. * * The 'post_ithread' hook is invoked when an ithread finishes. It is * responsible for ensuring that the associated interrupt source will * trigger an interrupt when it is asserted in the future. Usually * this is implemented by enabling a level-triggered interrupt that * was previously disabled via the 'pre_ithread' hook. * * The 'post_filter' hook is invoked when a filter handles an * interrupt. It is responsible for ensuring that the current CPU is * able to receive interrupts again. On some platforms this is done * by acknowledging the interrupts via an EOI. * * The 'assign_cpu' hook is used to bind an interrupt source to a * specific CPU. If the interrupt cannot be bound, this function may * return an error. * * Note that device drivers may also use interrupt events to manage * multiplexing interrupt interrupt handler into handlers for child * devices. In that case, the above hooks are not used. The device * can create an event for its interrupt resource and register child * event handlers with that event. It can then use * intr_event_execute_handlers() to execute non-filter handlers. * Currently filter handlers are not supported by this, but that can * be added by splitting out the filter loop from intr_event_handle() * if desired. */ struct intr_event { TAILQ_ENTRY(intr_event) ie_list; CK_SLIST_HEAD(, intr_handler) ie_handlers; /* Interrupt handlers. */ char ie_name[MAXCOMLEN + 1]; /* Individual event name. */ char ie_fullname[MAXCOMLEN + 1]; struct mtx ie_lock; void *ie_source; /* Cookie used by MD code. */ struct intr_thread *ie_thread; /* Thread we are connected to. */ void (*ie_pre_ithread)(void *); void (*ie_post_ithread)(void *); void (*ie_post_filter)(void *); int (*ie_assign_cpu)(void *, int); int ie_flags; int ie_hflags; /* Cumulative flags of all handlers. */ int ie_count; /* Loop counter. */ int ie_warncnt; /* Rate-check interrupt storm warns. */ struct timeval ie_warntm; int ie_irq; /* Physical irq number if !SOFT. */ int ie_cpu; /* CPU this event is bound to. */ volatile int ie_phase; /* Switched to establish a barrier. */ volatile int ie_active[2]; /* Filters in ISR context. */ }; /* Interrupt event flags kept in ie_flags. */ #define IE_SOFT 0x000001 /* Software interrupt. */ #define IE_ADDING_THREAD 0x000004 /* Currently building an ithread. */ /* Flags to pass to swi_sched. */ #define SWI_FROMNMI 0x1 #define SWI_DELAY 0x2 /* * Software interrupt numbers in priority order. The priority determines * the priority of the corresponding interrupt thread. */ #define SWI_TTY 0 #define SWI_NET 1 #define SWI_CAMBIO 2 #define SWI_VM 3 #define SWI_CLOCK 4 #define SWI_TQ_FAST 5 #define SWI_TQ 6 #define SWI_TQ_GIANT 6 struct proc; extern struct intr_event *clk_intr_event; extern struct intr_event *tty_intr_event; extern void *vm_ih; /* Counts and names for statistics (defined in MD code). */ extern u_long *intrcnt; /* counts for for each device and stray */ extern char *intrnames; /* string table containing device names */ extern size_t sintrcnt; /* size of intrcnt table */ extern size_t sintrnames; /* size of intrnames table */ #ifdef DDB void db_dump_intr_event(struct intr_event *ie, int handlers); #endif u_char intr_priority(enum intr_type flags); int intr_event_add_handler(struct intr_event *ie, const char *name, driver_filter_t filter, driver_intr_t handler, void *arg, u_char pri, enum intr_type flags, void **cookiep); int intr_event_bind(struct intr_event *ie, int cpu); int intr_event_bind_irqonly(struct intr_event *ie, int cpu); int intr_event_bind_ithread(struct intr_event *ie, int cpu); struct _cpuset; int intr_event_bind_ithread_cpuset(struct intr_event *ie, struct _cpuset *mask); int intr_event_create(struct intr_event **event, void *source, int flags, int irq, void (*pre_ithread)(void *), void (*post_ithread)(void *), void (*post_filter)(void *), int (*assign_cpu)(void *, int), const char *fmt, ...) __printflike(9, 10); int intr_event_describe_handler(struct intr_event *ie, void *cookie, const char *descr); int intr_event_destroy(struct intr_event *ie); int intr_event_handle(struct intr_event *ie, struct trapframe *frame); int intr_event_remove_handler(void *cookie); int intr_event_suspend_handler(void *cookie); int intr_event_resume_handler(void *cookie); int intr_getaffinity(int irq, int mode, void *mask); void *intr_handler_source(void *cookie); int intr_setaffinity(int irq, int mode, void *mask); void _intr_drain(int irq); /* Linux compat only. */ int swi_add(struct intr_event **eventp, const char *name, driver_intr_t handler, void *arg, int pri, enum intr_type flags, void **cookiep); void swi_sched(void *cookie, int flags); int swi_remove(void *cookie); #endif
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