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Make.tags.inc
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Makefile
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bus_if.m
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capabilities.conf
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clock_if.m
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cpufreq_if.m
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imgact_aout.c
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imgact_binmisc.c
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imgact_shell.c
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init_main.c
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init_sysent.c
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kern_acct.c
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kern_alq.c
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kern_clock.c
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kern_clocksource.c
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kern_condvar.c
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kern_conf.c
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kern_cons.c
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kern_context.c
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kern_cpu.c
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kern_cpuset.c
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kern_ctf.c
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kern_descrip.c
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kern_dtrace.c
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kern_dump.c
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kern_environment.c
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kern_et.c
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kern_event.c
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kern_exec.c
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kern_exit.c
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kern_fail.c
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kern_ffclock.c
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kern_fork.c
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kern_hhook.c
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kern_idle.c
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kern_intr.c
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kern_jail.c
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kern_kcov.c
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kern_khelp.c
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kern_kthread.c
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kern_ktr.c
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kern_ktrace.c
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kern_linker.c
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kern_lock.c
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kern_lockf.c
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kern_lockstat.c
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kern_loginclass.c
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kern_malloc.c
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kern_mbuf.c
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kern_mib.c
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kern_module.c
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kern_mtxpool.c
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kern_mutex.c
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kern_ntptime.c
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kern_osd.c
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kern_physio.c
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kern_pmc.c
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kern_poll.c
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kern_priv.c
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kern_proc.c
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kern_procctl.c
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kern_prot.c
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kern_racct.c
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kern_rangelock.c
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kern_rctl.c
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kern_resource.c
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kern_rmlock.c
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kern_rwlock.c
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kern_sdt.c
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kern_sema.c
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kern_sendfile.c
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kern_sharedpage.c
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kern_shutdown.c
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kern_sig.c
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kern_switch.c
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kern_sx.c
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kern_synch.c
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kern_syscalls.c
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kern_sysctl.c
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kern_tc.c
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kern_thr.c
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kern_thread.c
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kern_time.c
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kern_timeout.c
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kern_tslog.c
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kern_ubsan.c
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kern_umtx.c
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kern_uuid.c
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kern_xxx.c
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ksched.c
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link_elf.c
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link_elf_obj.c
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linker_if.m
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makesyscalls.sh
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md4c.c
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md5c.c
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msi_if.m
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p1003_1b.c
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pic_if.m
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posix4_mib.c
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sched_4bsd.c
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sched_ule.c
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serdev_if.m
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stack_protector.c
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subr_acl_nfs4.c
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subr_acl_posix1e.c
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subr_atomic64.c
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subr_autoconf.c
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subr_blist.c
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subr_boot.c
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subr_bufring.c
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subr_bus.c
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subr_bus_dma.c
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subr_busdma_bufalloc.c
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subr_capability.c
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subr_clock.c
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subr_compressor.c
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subr_counter.c
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subr_coverage.c
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subr_csan.c
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subr_devmap.c
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subr_devstat.c
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subr_disk.c
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subr_dummy_vdso_tc.c
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subr_early.c
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subr_epoch.c
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subr_eventhandler.c
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subr_fattime.c
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subr_filter.c
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subr_firmware.c
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subr_gtaskqueue.c
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subr_hash.c
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subr_hints.c
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subr_intr.c
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subr_kdb.c
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subr_kobj.c
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subr_lock.c
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subr_log.c
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subr_mchain.c
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subr_module.c
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subr_msgbuf.c
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subr_param.c
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subr_pcpu.c
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subr_pctrie.c
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subr_physmem.c
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subr_pidctrl.c
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subr_power.c
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subr_prf.c
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subr_prng.c
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subr_prof.c
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subr_rangeset.c
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subr_rman.c
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subr_rtc.c
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subr_sbuf.c
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subr_scanf.c
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subr_sfbuf.c
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subr_sglist.c
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subr_sleepqueue.c
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subr_smp.c
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subr_smr.c
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subr_stack.c
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subr_stats.c
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subr_syscall.c
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subr_taskqueue.c
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subr_terminal.c
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subr_trap.c
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subr_turnstile.c
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subr_uio.c
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subr_unit.c
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subr_vmem.c
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subr_witness.c
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sys_capability.c
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sys_eventfd.c
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sys_generic.c
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sys_getrandom.c
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sys_pipe.c
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sys_procdesc.c
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sys_process.c
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sys_socket.c
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syscalls.c
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syscalls.master
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systrace_args.c
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sysv_ipc.c
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sysv_msg.c
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sysv_sem.c
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sysv_shm.c
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tty.c
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tty_compat.c
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tty_info.c
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tty_inq.c
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tty_outq.c
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tty_pts.c
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tty_tty.c
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tty_ttydisc.c
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uipc_accf.c
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uipc_debug.c
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uipc_domain.c
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uipc_ktls.c
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uipc_mbuf.c
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uipc_mbuf2.c
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uipc_mbufhash.c
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uipc_mqueue.c
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uipc_sem.c
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uipc_shm.c
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uipc_sockbuf.c
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uipc_socket.c
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uipc_syscalls.c
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uipc_usrreq.c
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vfs_acl.c
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vfs_aio.c
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vfs_bio.c
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vfs_cache.c
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vfs_cluster.c
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vfs_default.c
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vfs_export.c
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vfs_extattr.c
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vfs_hash.c
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vfs_init.c
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vfs_lookup.c
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vfs_mount.c
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vfs_mountroot.c
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vfs_subr.c
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vfs_syscalls.c
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vfs_vnops.c
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vnode_if.src
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Editing: subr_csan.c
/* $NetBSD: subr_csan.c,v 1.5 2019/11/15 08:11:37 maxv Exp $ */ /* * Copyright (c) 2019 The NetBSD Foundation, Inc. * All rights reserved. * Copyright (c) 2019 Andrew Turner * * This code is derived from software contributed to The NetBSD Foundation * by Maxime Villard. * * 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, 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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. */ #define KCSAN_RUNTIME #include "opt_ddb.h" #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/kernel.h> #include <sys/bus.h> #include <sys/conf.h> #include <sys/cpu.h> #include <sys/csan.h> #include <sys/proc.h> #include <sys/smp.h> #include <sys/systm.h> #include <ddb/ddb.h> #include <ddb/db_sym.h> #ifdef KCSAN_PANIC #define REPORT panic #else #define REPORT printf #endif typedef struct { uintptr_t addr; uint32_t size; bool write:1; bool atomic:1; uintptr_t pc; } csan_cell_t; typedef struct { bool inited; uint32_t cnt; csan_cell_t cell; } csan_cpu_t; static csan_cpu_t kcsan_cpus[MAXCPU]; static bool kcsan_enabled __read_mostly; #define __RET_ADDR (uintptr_t)__builtin_return_address(0) #define KCSAN_NACCESSES 1024 #define KCSAN_DELAY 10 /* 10 microseconds */ /* -------------------------------------------------------------------------- */ /* The MD code. */ #include <machine/csan.h> /* -------------------------------------------------------------------------- */ static void kcsan_enable(void *dummy __unused) { printf("Enabling KCSCAN, expect reduced performance.\n"); kcsan_enabled = true; } SYSINIT(kcsan_enable, SI_SUB_SMP, SI_ORDER_SECOND, kcsan_enable, NULL); void kcsan_cpu_init(u_int cpu) { kcsan_cpus[cpu].inited = true; } /* -------------------------------------------------------------------------- */ static inline void kcsan_report(csan_cell_t *new, u_int newcpu, csan_cell_t *old, u_int oldcpu) { const char *newsym, *oldsym; #ifdef DDB c_db_sym_t sym; db_expr_t offset; sym = db_search_symbol((vm_offset_t)new->pc, DB_STGY_PROC, &offset); db_symbol_values(sym, &newsym, NULL); sym = db_search_symbol((vm_offset_t)old->pc, DB_STGY_PROC, &offset); db_symbol_values(sym, &oldsym, NULL); #else newsym = ""; oldsym = ""; #endif REPORT("CSan: Racy Access " "[Cpu%u %s%s Addr=%p Size=%u PC=%p<%s>] " "[Cpu%u %s%s Addr=%p Size=%u PC=%p<%s>]\n", newcpu, (new->atomic ? "Atomic " : ""), (new->write ? "Write" : "Read"), (void *)new->addr, new->size, (void *)new->pc, newsym, oldcpu, (old->atomic ? "Atomic " : ""), (old->write ? "Write" : "Read"), (void *)old->addr, old->size, (void *)old->pc, oldsym); kcsan_md_unwind(); } static inline bool kcsan_access_is_atomic(csan_cell_t *new, csan_cell_t *old) { if (new->write && !new->atomic) return false; if (old->write && !old->atomic) return false; return true; } static inline void kcsan_access(uintptr_t addr, size_t size, bool write, bool atomic, uintptr_t pc) { csan_cell_t old, new; csan_cpu_t *cpu; uint64_t intr; size_t i; if (__predict_false(!kcsan_enabled)) return; if (__predict_false(kcsan_md_unsupported((vm_offset_t)addr))) return; if (KERNEL_PANICKED()) return; new.addr = addr; new.size = size; new.write = write; new.atomic = atomic; new.pc = pc; CPU_FOREACH(i) { __builtin_memcpy(&old, &kcsan_cpus[i].cell, sizeof(old)); if (old.addr + old.size <= new.addr) continue; if (new.addr + new.size <= old.addr) continue; if (__predict_true(!old.write && !new.write)) continue; if (__predict_true(kcsan_access_is_atomic(&new, &old))) continue; kcsan_report(&new, PCPU_GET(cpuid), &old, i); break; } if (__predict_false(!kcsan_md_is_avail())) return; kcsan_md_disable_intrs(&intr); cpu = &kcsan_cpus[PCPU_GET(cpuid)]; if (__predict_false(!cpu->inited)) goto out; cpu->cnt = (cpu->cnt + 1) % KCSAN_NACCESSES; if (__predict_true(cpu->cnt != 0)) goto out; __builtin_memcpy(&cpu->cell, &new, sizeof(new)); kcsan_md_delay(KCSAN_DELAY); __builtin_memset(&cpu->cell, 0, sizeof(new)); out: kcsan_md_enable_intrs(&intr); } #define CSAN_READ(size) \ void __tsan_read##size(uintptr_t); \ void __tsan_read##size(uintptr_t addr) \ { \ kcsan_access(addr, size, false, false, __RET_ADDR); \ } \ void __tsan_unaligned_read##size(uintptr_t); \ void __tsan_unaligned_read##size(uintptr_t addr) \ { \ kcsan_access(addr, size, false, false, __RET_ADDR); \ } CSAN_READ(1) CSAN_READ(2) CSAN_READ(4) CSAN_READ(8) CSAN_READ(16) #define CSAN_WRITE(size) \ void __tsan_write##size(uintptr_t); \ void __tsan_write##size(uintptr_t addr) \ { \ kcsan_access(addr, size, true, false, __RET_ADDR); \ } \ void __tsan_unaligned_write##size(uintptr_t); \ void __tsan_unaligned_write##size(uintptr_t addr) \ { \ kcsan_access(addr, size, true, false, __RET_ADDR); \ } CSAN_WRITE(1) CSAN_WRITE(2) CSAN_WRITE(4) CSAN_WRITE(8) CSAN_WRITE(16) void __tsan_read_range(uintptr_t, size_t); void __tsan_write_range(uintptr_t, size_t); void __tsan_read_range(uintptr_t addr, size_t size) { kcsan_access(addr, size, false, false, __RET_ADDR); } void __tsan_write_range(uintptr_t addr, size_t size) { kcsan_access(addr, size, true, false, __RET_ADDR); } void __tsan_init(void); void __tsan_func_entry(void *); void __tsan_func_exit(void); void __tsan_init(void) { } void __tsan_func_entry(void *call_pc) { } void __tsan_func_exit(void) { } /* -------------------------------------------------------------------------- */ void * kcsan_memcpy(void *dst, const void *src, size_t len) { kcsan_access((uintptr_t)src, len, false, false, __RET_ADDR); kcsan_access((uintptr_t)dst, len, true, false, __RET_ADDR); return __builtin_memcpy(dst, src, len); } int kcsan_memcmp(const void *b1, const void *b2, size_t len) { kcsan_access((uintptr_t)b1, len, false, false, __RET_ADDR); kcsan_access((uintptr_t)b2, len, false, false, __RET_ADDR); return __builtin_memcmp(b1, b2, len); } void * kcsan_memset(void *b, int c, size_t len) { kcsan_access((uintptr_t)b, len, true, false, __RET_ADDR); return __builtin_memset(b, c, len); } void * kcsan_memmove(void *dst, const void *src, size_t len) { kcsan_access((uintptr_t)src, len, false, false, __RET_ADDR); kcsan_access((uintptr_t)dst, len, true, false, __RET_ADDR); return __builtin_memmove(dst, src, len); } char * kcsan_strcpy(char *dst, const char *src) { char *save = dst; while (1) { kcsan_access((uintptr_t)src, 1, false, false, __RET_ADDR); kcsan_access((uintptr_t)dst, 1, true, false, __RET_ADDR); *dst = *src; if (*src == '\0') break; src++, dst++; } return save; } int kcsan_strcmp(const char *s1, const char *s2) { while (1) { kcsan_access((uintptr_t)s1, 1, false, false, __RET_ADDR); kcsan_access((uintptr_t)s2, 1, false, false, __RET_ADDR); if (*s1 != *s2) break; if (*s1 == '\0') return 0; s1++, s2++; } return (*(const unsigned char *)s1 - *(const unsigned char *)s2); } size_t kcsan_strlen(const char *str) { const char *s; s = str; while (1) { kcsan_access((uintptr_t)s, 1, false, false, __RET_ADDR); if (*s == '\0') break; s++; } return (s - str); } #undef copyin #undef copyin_nofault #undef copyinstr #undef copyout #undef copyout_nofault int kcsan_copyin(const void *uaddr, void *kaddr, size_t len) { kcsan_access((uintptr_t)kaddr, len, true, false, __RET_ADDR); return copyin(uaddr, kaddr, len); } int kcsan_copyinstr(const void *uaddr, void *kaddr, size_t len, size_t *done) { kcsan_access((uintptr_t)kaddr, len, true, false, __RET_ADDR); return copyinstr(uaddr, kaddr, len, done); } int kcsan_copyout(const void *kaddr, void *uaddr, size_t len) { kcsan_access((uintptr_t)kaddr, len, false, false, __RET_ADDR); return copyout(kaddr, uaddr, len); } /* -------------------------------------------------------------------------- */ #include <machine/atomic.h> #include <sys/_cscan_atomic.h> #define _CSAN_ATOMIC_FUNC_ADD(name, type) \ void kcsan_atomic_add_##name(volatile type *ptr, type val) \ { \ kcsan_access((uintptr_t)ptr, sizeof(type), true, true, \ __RET_ADDR); \ atomic_add_##name(ptr, val); \ } #define CSAN_ATOMIC_FUNC_ADD(name, type) \ _CSAN_ATOMIC_FUNC_ADD(name, type) \ _CSAN_ATOMIC_FUNC_ADD(acq_##name, type) \ _CSAN_ATOMIC_FUNC_ADD(rel_##name, type) #define _CSAN_ATOMIC_FUNC_CLEAR(name, type) \ void kcsan_atomic_clear_##name(volatile type *ptr, type val) \ { \ kcsan_access((uintptr_t)ptr, sizeof(type), true, true, \ __RET_ADDR); \ atomic_clear_##name(ptr, val); \ } #define CSAN_ATOMIC_FUNC_CLEAR(name, type) \ _CSAN_ATOMIC_FUNC_CLEAR(name, type) \ _CSAN_ATOMIC_FUNC_CLEAR(acq_##name, type) \ _CSAN_ATOMIC_FUNC_CLEAR(rel_##name, type) #define _CSAN_ATOMIC_FUNC_CMPSET(name, type) \ int kcsan_atomic_cmpset_##name(volatile type *ptr, type val1, \ type val2) \ { \ kcsan_access((uintptr_t)ptr, sizeof(type), true, true, \ __RET_ADDR); \ return (atomic_cmpset_##name(ptr, val1, val2)); \ } #define CSAN_ATOMIC_FUNC_CMPSET(name, type) \ _CSAN_ATOMIC_FUNC_CMPSET(name, type) \ _CSAN_ATOMIC_FUNC_CMPSET(acq_##name, type) \ _CSAN_ATOMIC_FUNC_CMPSET(rel_##name, type) #define _CSAN_ATOMIC_FUNC_FCMPSET(name, type) \ int kcsan_atomic_fcmpset_##name(volatile type *ptr, type *val1, \ type val2) \ { \ kcsan_access((uintptr_t)ptr, sizeof(type), true, true, \ __RET_ADDR); \ return (atomic_fcmpset_##name(ptr, val1, val2)); \ } #define CSAN_ATOMIC_FUNC_FCMPSET(name, type) \ _CSAN_ATOMIC_FUNC_FCMPSET(name, type) \ _CSAN_ATOMIC_FUNC_FCMPSET(acq_##name, type) \ _CSAN_ATOMIC_FUNC_FCMPSET(rel_##name, type) #define CSAN_ATOMIC_FUNC_FETCHADD(name, type) \ type kcsan_atomic_fetchadd_##name(volatile type *ptr, type val) \ { \ kcsan_access((uintptr_t)ptr, sizeof(type), true, true, \ __RET_ADDR); \ return (atomic_fetchadd_##name(ptr, val)); \ } #define _CSAN_ATOMIC_FUNC_LOAD(name, type) \ type kcsan_atomic_load_##name(volatile type *ptr) \ { \ kcsan_access((uintptr_t)ptr, sizeof(type), false, true, \ __RET_ADDR); \ return (atomic_load_##name(ptr)); \ } #define CSAN_ATOMIC_FUNC_LOAD(name, type) \ _CSAN_ATOMIC_FUNC_LOAD(name, type) \ _CSAN_ATOMIC_FUNC_LOAD(acq_##name, type) \ #define CSAN_ATOMIC_FUNC_READANDCLEAR(name, type) \ type kcsan_atomic_readandclear_##name(volatile type *ptr) \ { \ kcsan_access((uintptr_t)ptr, sizeof(type), true, true, \ __RET_ADDR); \ return (atomic_readandclear_##name(ptr)); \ } #define _CSAN_ATOMIC_FUNC_SET(name, type) \ void kcsan_atomic_set_##name(volatile type *ptr, type val) \ { \ kcsan_access((uintptr_t)ptr, sizeof(type), true, true, \ __RET_ADDR); \ atomic_set_##name(ptr, val); \ } #define CSAN_ATOMIC_FUNC_SET(name, type) \ _CSAN_ATOMIC_FUNC_SET(name, type) \ _CSAN_ATOMIC_FUNC_SET(acq_##name, type) \ _CSAN_ATOMIC_FUNC_SET(rel_##name, type) #define _CSAN_ATOMIC_FUNC_SUBTRACT(name, type) \ void kcsan_atomic_subtract_##name(volatile type *ptr, type val) \ { \ kcsan_access((uintptr_t)ptr, sizeof(type), true, true, \ __RET_ADDR); \ atomic_subtract_##name(ptr, val); \ } #define CSAN_ATOMIC_FUNC_SUBTRACT(name, type) \ _CSAN_ATOMIC_FUNC_SUBTRACT(name, type) \ _CSAN_ATOMIC_FUNC_SUBTRACT(acq_##name, type) \ _CSAN_ATOMIC_FUNC_SUBTRACT(rel_##name, type) #define _CSAN_ATOMIC_FUNC_STORE(name, type) \ void kcsan_atomic_store_##name(volatile type *ptr, type val) \ { \ kcsan_access((uintptr_t)ptr, sizeof(type), true, true, \ __RET_ADDR); \ atomic_store_##name(ptr, val); \ } #define CSAN_ATOMIC_FUNC_STORE(name, type) \ _CSAN_ATOMIC_FUNC_STORE(name, type) \ _CSAN_ATOMIC_FUNC_STORE(rel_##name, type) #define CSAN_ATOMIC_FUNC_SWAP(name, type) \ type kcsan_atomic_swap_##name(volatile type *ptr, type val) \ { \ kcsan_access((uintptr_t)ptr, sizeof(type), true, true, \ __RET_ADDR); \ return(atomic_swap_##name(ptr, val)); \ } #define CSAN_ATOMIC_FUNC_TESTANDCLEAR(name, type) \ int kcsan_atomic_testandclear_##name(volatile type *ptr, u_int val) \ { \ kcsan_access((uintptr_t)ptr, sizeof(type), true, true, \ __RET_ADDR); \ return(atomic_testandclear_##name(ptr, val)); \ } #define CSAN_ATOMIC_FUNC_TESTANDSET(name, type) \ int kcsan_atomic_testandset_##name(volatile type *ptr, u_int val) \ { \ kcsan_access((uintptr_t)ptr, sizeof(type), true, true, \ __RET_ADDR); \ return (atomic_testandset_##name(ptr, val)); \ } CSAN_ATOMIC_FUNC_ADD(8, uint8_t) CSAN_ATOMIC_FUNC_CLEAR(8, uint8_t) CSAN_ATOMIC_FUNC_CMPSET(8, uint8_t) CSAN_ATOMIC_FUNC_FCMPSET(8, uint8_t) CSAN_ATOMIC_FUNC_LOAD(8, uint8_t) CSAN_ATOMIC_FUNC_SET(8, uint8_t) CSAN_ATOMIC_FUNC_SUBTRACT(8, uint8_t) _CSAN_ATOMIC_FUNC_STORE(8, uint8_t) #if 0 CSAN_ATOMIC_FUNC_FETCHADD(8, uint8_t) CSAN_ATOMIC_FUNC_READANDCLEAR(8, uint8_t) CSAN_ATOMIC_FUNC_SWAP(8, uint8_t) CSAN_ATOMIC_FUNC_TESTANDCLEAR(8, uint8_t) CSAN_ATOMIC_FUNC_TESTANDSET(8, uint8_t) #endif CSAN_ATOMIC_FUNC_ADD(16, uint16_t) CSAN_ATOMIC_FUNC_CLEAR(16, uint16_t) CSAN_ATOMIC_FUNC_CMPSET(16, uint16_t) CSAN_ATOMIC_FUNC_FCMPSET(16, uint16_t) CSAN_ATOMIC_FUNC_LOAD(16, uint16_t) CSAN_ATOMIC_FUNC_SET(16, uint16_t) CSAN_ATOMIC_FUNC_SUBTRACT(16, uint16_t) _CSAN_ATOMIC_FUNC_STORE(16, uint16_t) #if 0 CSAN_ATOMIC_FUNC_FETCHADD(16, uint16_t) CSAN_ATOMIC_FUNC_READANDCLEAR(16, uint16_t) CSAN_ATOMIC_FUNC_SWAP(16, uint16_t) CSAN_ATOMIC_FUNC_TESTANDCLEAR(16, uint16_t) CSAN_ATOMIC_FUNC_TESTANDSET(16, uint16_t) #endif CSAN_ATOMIC_FUNC_ADD(32, uint32_t) CSAN_ATOMIC_FUNC_CLEAR(32, uint32_t) CSAN_ATOMIC_FUNC_CMPSET(32, uint32_t) CSAN_ATOMIC_FUNC_FCMPSET(32, uint32_t) CSAN_ATOMIC_FUNC_FETCHADD(32, uint32_t) CSAN_ATOMIC_FUNC_LOAD(32, uint32_t) CSAN_ATOMIC_FUNC_READANDCLEAR(32, uint32_t) CSAN_ATOMIC_FUNC_SET(32, uint32_t) CSAN_ATOMIC_FUNC_SUBTRACT(32, uint32_t) CSAN_ATOMIC_FUNC_STORE(32, uint32_t) CSAN_ATOMIC_FUNC_SWAP(32, uint32_t) #if !defined(__aarch64__) CSAN_ATOMIC_FUNC_TESTANDCLEAR(32, uint32_t) CSAN_ATOMIC_FUNC_TESTANDSET(32, uint32_t) #endif CSAN_ATOMIC_FUNC_ADD(64, uint64_t) CSAN_ATOMIC_FUNC_CLEAR(64, uint64_t) CSAN_ATOMIC_FUNC_CMPSET(64, uint64_t) CSAN_ATOMIC_FUNC_FCMPSET(64, uint64_t) CSAN_ATOMIC_FUNC_FETCHADD(64, uint64_t) CSAN_ATOMIC_FUNC_LOAD(64, uint64_t) CSAN_ATOMIC_FUNC_READANDCLEAR(64, uint64_t) CSAN_ATOMIC_FUNC_SET(64, uint64_t) CSAN_ATOMIC_FUNC_SUBTRACT(64, uint64_t) CSAN_ATOMIC_FUNC_STORE(64, uint64_t) CSAN_ATOMIC_FUNC_SWAP(64, uint64_t) #if !defined(__aarch64__) CSAN_ATOMIC_FUNC_TESTANDCLEAR(64, uint64_t) CSAN_ATOMIC_FUNC_TESTANDSET(64, uint64_t) #endif CSAN_ATOMIC_FUNC_ADD(char, uint8_t) CSAN_ATOMIC_FUNC_CLEAR(char, uint8_t) CSAN_ATOMIC_FUNC_CMPSET(char, uint8_t) CSAN_ATOMIC_FUNC_FCMPSET(char, uint8_t) CSAN_ATOMIC_FUNC_LOAD(char, uint8_t) CSAN_ATOMIC_FUNC_SET(char, uint8_t) CSAN_ATOMIC_FUNC_SUBTRACT(char, uint8_t) _CSAN_ATOMIC_FUNC_STORE(char, uint8_t) #if 0 CSAN_ATOMIC_FUNC_FETCHADD(char, uint8_t) CSAN_ATOMIC_FUNC_READANDCLEAR(char, uint8_t) CSAN_ATOMIC_FUNC_SWAP(char, uint8_t) CSAN_ATOMIC_FUNC_TESTANDCLEAR(char, uint8_t) CSAN_ATOMIC_FUNC_TESTANDSET(char, uint8_t) #endif CSAN_ATOMIC_FUNC_ADD(short, uint16_t) CSAN_ATOMIC_FUNC_CLEAR(short, uint16_t) CSAN_ATOMIC_FUNC_CMPSET(short, uint16_t) CSAN_ATOMIC_FUNC_FCMPSET(short, uint16_t) CSAN_ATOMIC_FUNC_LOAD(short, uint16_t) CSAN_ATOMIC_FUNC_SET(short, uint16_t) CSAN_ATOMIC_FUNC_SUBTRACT(short, uint16_t) _CSAN_ATOMIC_FUNC_STORE(short, uint16_t) #if 0 CSAN_ATOMIC_FUNC_FETCHADD(short, uint16_t) CSAN_ATOMIC_FUNC_READANDCLEAR(short, uint16_t) CSAN_ATOMIC_FUNC_SWAP(short, uint16_t) CSAN_ATOMIC_FUNC_TESTANDCLEAR(short, uint16_t) CSAN_ATOMIC_FUNC_TESTANDSET(short, uint16_t) #endif CSAN_ATOMIC_FUNC_ADD(int, u_int) CSAN_ATOMIC_FUNC_CLEAR(int, u_int) CSAN_ATOMIC_FUNC_CMPSET(int, u_int) CSAN_ATOMIC_FUNC_FCMPSET(int, u_int) CSAN_ATOMIC_FUNC_FETCHADD(int, u_int) CSAN_ATOMIC_FUNC_LOAD(int, u_int) CSAN_ATOMIC_FUNC_READANDCLEAR(int, u_int) CSAN_ATOMIC_FUNC_SET(int, u_int) CSAN_ATOMIC_FUNC_SUBTRACT(int, u_int) CSAN_ATOMIC_FUNC_STORE(int, u_int) CSAN_ATOMIC_FUNC_SWAP(int, u_int) #if !defined(__aarch64__) CSAN_ATOMIC_FUNC_TESTANDCLEAR(int, u_int) CSAN_ATOMIC_FUNC_TESTANDSET(int, u_int) #endif CSAN_ATOMIC_FUNC_ADD(long, u_long) CSAN_ATOMIC_FUNC_CLEAR(long, u_long) CSAN_ATOMIC_FUNC_CMPSET(long, u_long) CSAN_ATOMIC_FUNC_FCMPSET(long, u_long) CSAN_ATOMIC_FUNC_FETCHADD(long, u_long) CSAN_ATOMIC_FUNC_LOAD(long, u_long) CSAN_ATOMIC_FUNC_READANDCLEAR(long, u_long) CSAN_ATOMIC_FUNC_SET(long, u_long) CSAN_ATOMIC_FUNC_SUBTRACT(long, u_long) CSAN_ATOMIC_FUNC_STORE(long, u_long) CSAN_ATOMIC_FUNC_SWAP(long, u_long) #if !defined(__aarch64__) CSAN_ATOMIC_FUNC_TESTANDCLEAR(long, u_long) CSAN_ATOMIC_FUNC_TESTANDSET(long, u_long) CSAN_ATOMIC_FUNC_TESTANDSET(acq_long, u_long) #endif CSAN_ATOMIC_FUNC_ADD(ptr, uintptr_t) CSAN_ATOMIC_FUNC_CLEAR(ptr, uintptr_t) CSAN_ATOMIC_FUNC_CMPSET(ptr, uintptr_t) CSAN_ATOMIC_FUNC_FCMPSET(ptr, uintptr_t) #if !defined(__amd64__) CSAN_ATOMIC_FUNC_FETCHADD(ptr, uintptr_t) #endif CSAN_ATOMIC_FUNC_LOAD(ptr, uintptr_t) CSAN_ATOMIC_FUNC_READANDCLEAR(ptr, uintptr_t) CSAN_ATOMIC_FUNC_SET(ptr, uintptr_t) CSAN_ATOMIC_FUNC_SUBTRACT(ptr, uintptr_t) CSAN_ATOMIC_FUNC_STORE(ptr, uintptr_t) CSAN_ATOMIC_FUNC_SWAP(ptr, uintptr_t) #if 0 CSAN_ATOMIC_FUNC_TESTANDCLEAR(ptr, uintptr_t) CSAN_ATOMIC_FUNC_TESTANDSET(ptr, uintptr_t) #endif #define CSAN_ATOMIC_FUNC_THREAD_FENCE(name) \ void kcsan_atomic_thread_fence_##name(void) \ { \ atomic_thread_fence_##name(); \ } CSAN_ATOMIC_FUNC_THREAD_FENCE(acq) CSAN_ATOMIC_FUNC_THREAD_FENCE(acq_rel) CSAN_ATOMIC_FUNC_THREAD_FENCE(rel) CSAN_ATOMIC_FUNC_THREAD_FENCE(seq_cst) /* -------------------------------------------------------------------------- */ #include <sys/bus.h> #include <machine/bus.h> #include <sys/_cscan_bus.h> int kcsan_bus_space_map(bus_space_tag_t tag, bus_addr_t hnd, bus_size_t size, int flags, bus_space_handle_t *handlep) { return (bus_space_map(tag, hnd, size, flags, handlep)); } void kcsan_bus_space_unmap(bus_space_tag_t tag, bus_space_handle_t hnd, bus_size_t size) { bus_space_unmap(tag, hnd, size); } int kcsan_bus_space_subregion(bus_space_tag_t tag, bus_space_handle_t hnd, bus_size_t offset, bus_size_t size, bus_space_handle_t *handlep) { return (bus_space_subregion(tag, hnd, offset, size, handlep)); } #if !defined(__amd64__) int kcsan_bus_space_alloc(bus_space_tag_t tag, bus_addr_t reg_start, bus_addr_t reg_end, bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags, bus_addr_t *addrp, bus_space_handle_t *handlep) { return (bus_space_alloc(tag, reg_start, reg_end, size, alignment, boundary, flags, addrp, handlep)); } #endif void kcsan_bus_space_free(bus_space_tag_t tag, bus_space_handle_t hnd, bus_size_t size) { bus_space_free(tag, hnd, size); } void kcsan_bus_space_barrier(bus_space_tag_t tag, bus_space_handle_t hnd, bus_size_t offset, bus_size_t size, int flags) { bus_space_barrier(tag, hnd, offset, size, flags); } #define CSAN_BUS_READ_FUNC(func, width, type) \ type kcsan_bus_space_read##func##_##width(bus_space_tag_t tag, \ bus_space_handle_t hnd, bus_size_t offset) \ { \ return (bus_space_read##func##_##width(tag, hnd, \ offset)); \ } \ #define CSAN_BUS_READ_PTR_FUNC(func, width, type) \ void kcsan_bus_space_read_##func##_##width(bus_space_tag_t tag, \ bus_space_handle_t hnd, bus_size_t size, type *buf, \ bus_size_t count) \ { \ kcsan_access((uintptr_t)buf, sizeof(type) * count, \ false, false, __RET_ADDR); \ bus_space_read_##func##_##width(tag, hnd, size, buf, \ count); \ } CSAN_BUS_READ_FUNC(, 1, uint8_t) CSAN_BUS_READ_FUNC(_stream, 1, uint8_t) CSAN_BUS_READ_PTR_FUNC(multi, 1, uint8_t) CSAN_BUS_READ_PTR_FUNC(multi_stream, 1, uint8_t) CSAN_BUS_READ_PTR_FUNC(region, 1, uint8_t) CSAN_BUS_READ_PTR_FUNC(region_stream, 1, uint8_t) CSAN_BUS_READ_FUNC(, 2, uint16_t) CSAN_BUS_READ_FUNC(_stream, 2, uint16_t) CSAN_BUS_READ_PTR_FUNC(multi, 2, uint16_t) CSAN_BUS_READ_PTR_FUNC(multi_stream, 2, uint16_t) CSAN_BUS_READ_PTR_FUNC(region, 2, uint16_t) CSAN_BUS_READ_PTR_FUNC(region_stream, 2, uint16_t) CSAN_BUS_READ_FUNC(, 4, uint32_t) CSAN_BUS_READ_FUNC(_stream, 4, uint32_t) CSAN_BUS_READ_PTR_FUNC(multi, 4, uint32_t) CSAN_BUS_READ_PTR_FUNC(multi_stream, 4, uint32_t) CSAN_BUS_READ_PTR_FUNC(region, 4, uint32_t) CSAN_BUS_READ_PTR_FUNC(region_stream, 4, uint32_t) CSAN_BUS_READ_FUNC(, 8, uint64_t) #if defined(__aarch64__) CSAN_BUS_READ_FUNC(_stream, 8, uint64_t) CSAN_BUS_READ_PTR_FUNC(multi, 8, uint64_t) CSAN_BUS_READ_PTR_FUNC(multi_stream, 8, uint64_t) CSAN_BUS_READ_PTR_FUNC(region, 8, uint64_t) CSAN_BUS_READ_PTR_FUNC(region_stream, 8, uint64_t) #endif #define CSAN_BUS_WRITE_FUNC(func, width, type) \ void kcsan_bus_space_write##func##_##width(bus_space_tag_t tag, \ bus_space_handle_t hnd, bus_size_t offset, type value) \ { \ bus_space_write##func##_##width(tag, hnd, offset, value); \ } \ #define CSAN_BUS_WRITE_PTR_FUNC(func, width, type) \ void kcsan_bus_space_write_##func##_##width(bus_space_tag_t tag, \ bus_space_handle_t hnd, bus_size_t size, const type *buf, \ bus_size_t count) \ { \ kcsan_access((uintptr_t)buf, sizeof(type) * count, \ true, false, __RET_ADDR); \ bus_space_write_##func##_##width(tag, hnd, size, buf, \ count); \ } CSAN_BUS_WRITE_FUNC(, 1, uint8_t) CSAN_BUS_WRITE_FUNC(_stream, 1, uint8_t) CSAN_BUS_WRITE_PTR_FUNC(multi, 1, uint8_t) CSAN_BUS_WRITE_PTR_FUNC(multi_stream, 1, uint8_t) CSAN_BUS_WRITE_PTR_FUNC(region, 1, uint8_t) CSAN_BUS_WRITE_PTR_FUNC(region_stream, 1, uint8_t) CSAN_BUS_WRITE_FUNC(, 2, uint16_t) CSAN_BUS_WRITE_FUNC(_stream, 2, uint16_t) CSAN_BUS_WRITE_PTR_FUNC(multi, 2, uint16_t) CSAN_BUS_WRITE_PTR_FUNC(multi_stream, 2, uint16_t) CSAN_BUS_WRITE_PTR_FUNC(region, 2, uint16_t) CSAN_BUS_WRITE_PTR_FUNC(region_stream, 2, uint16_t) CSAN_BUS_WRITE_FUNC(, 4, uint32_t) CSAN_BUS_WRITE_FUNC(_stream, 4, uint32_t) CSAN_BUS_WRITE_PTR_FUNC(multi, 4, uint32_t) CSAN_BUS_WRITE_PTR_FUNC(multi_stream, 4, uint32_t) CSAN_BUS_WRITE_PTR_FUNC(region, 4, uint32_t) CSAN_BUS_WRITE_PTR_FUNC(region_stream, 4, uint32_t) CSAN_BUS_WRITE_FUNC(, 8, uint64_t) #if defined(__aarch64__) CSAN_BUS_WRITE_FUNC(_stream, 8, uint64_t) CSAN_BUS_WRITE_PTR_FUNC(multi, 8, uint64_t) CSAN_BUS_WRITE_PTR_FUNC(multi_stream, 8, uint64_t) CSAN_BUS_WRITE_PTR_FUNC(region, 8, uint64_t) CSAN_BUS_WRITE_PTR_FUNC(region_stream, 8, uint64_t) #endif #define CSAN_BUS_SET_FUNC(func, width, type) \ void kcsan_bus_space_set_##func##_##width(bus_space_tag_t tag, \ bus_space_handle_t hnd, bus_size_t offset, type value, \ bus_size_t count) \ { \ bus_space_set_##func##_##width(tag, hnd, offset, value, \ count); \ } CSAN_BUS_SET_FUNC(multi, 1, uint8_t) CSAN_BUS_SET_FUNC(region, 1, uint8_t) #if !defined(__aarch64__) CSAN_BUS_SET_FUNC(multi_stream, 1, uint8_t) CSAN_BUS_SET_FUNC(region_stream, 1, uint8_t) #endif CSAN_BUS_SET_FUNC(multi, 2, uint16_t) CSAN_BUS_SET_FUNC(region, 2, uint16_t) #if !defined(__aarch64__) CSAN_BUS_SET_FUNC(multi_stream, 2, uint16_t) CSAN_BUS_SET_FUNC(region_stream, 2, uint16_t) #endif CSAN_BUS_SET_FUNC(multi, 4, uint32_t) CSAN_BUS_SET_FUNC(region, 4, uint32_t) #if !defined(__aarch64__) CSAN_BUS_SET_FUNC(multi_stream, 4, uint32_t) CSAN_BUS_SET_FUNC(region_stream, 4, uint32_t) #endif #if !defined(__amd64__) CSAN_BUS_SET_FUNC(multi, 8, uint64_t) CSAN_BUS_SET_FUNC(region, 8, uint64_t) #if !defined(__aarch64__) CSAN_BUS_SET_FUNC(multi_stream, 8, uint64_t) CSAN_BUS_SET_FUNC(region_stream, 8, uint64_t) #endif #endif #define CSAN_BUS_PEEK_FUNC(width, type) \ int kcsan_bus_space_peek_##width(bus_space_tag_t tag, \ bus_space_handle_t hnd, bus_size_t offset, type *value) \ { \ kcsan_access((uintptr_t)value, sizeof(type), true, false, \ __RET_ADDR); \ return (bus_space_peek_##width(tag, hnd, offset, value)); \ } CSAN_BUS_PEEK_FUNC(1, uint8_t) CSAN_BUS_PEEK_FUNC(2, uint16_t) CSAN_BUS_PEEK_FUNC(4, uint32_t) #if !defined(__i386__) CSAN_BUS_PEEK_FUNC(8, uint64_t) #endif #define CSAN_BUS_POKE_FUNC(width, type) \ int kcsan_bus_space_poke_##width(bus_space_tag_t tag, \ bus_space_handle_t hnd, bus_size_t offset, type value) \ { \ return (bus_space_poke_##width(tag, hnd, offset, value)); \ } CSAN_BUS_POKE_FUNC(1, uint8_t) CSAN_BUS_POKE_FUNC(2, uint16_t) CSAN_BUS_POKE_FUNC(4, uint32_t) #if !defined(__i386__) CSAN_BUS_POKE_FUNC(8, uint64_t) #endif
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