The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/conf/options

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    1 # $FreeBSD$
    2 #
    3 #        On the handling of kernel options
    4 #
    5 # All kernel options should be listed in NOTES, with suitable
    6 # descriptions.  Negative options (options that make some code not
    7 # compile) should be commented out; LINT (generated from NOTES) should
    8 # compile as much code as possible.  Try to structure option-using
    9 # code so that a single option only switch code on, or only switch
   10 # code off, to make it possible to have a full compile-test.  If
   11 # necessary, you can check for COMPILING_LINT to get maximum code
   12 # coverage.
   13 #
   14 # All new options shall also be listed in either "conf/options" or
   15 # "conf/options.<machine>".  Options that affect a single source-file
   16 # <xxx>.[c|s] should be directed into "opt_<xxx>.h", while options
   17 # that affect multiple files should either go in "opt_global.h" if
   18 # this is a kernel-wide option (used just about everywhere), or in
   19 # "opt_<option-name-in-lower-case>.h" if it affects only some files.
   20 # Note that the effect of listing only an option without a
   21 # header-file-name in conf/options (and cousins) is that the last
   22 # convention is followed.
   23 #
   24 # This handling scheme is not yet fully implemented.
   25 #
   26 #
   27 # Format of this file:
   28 # Option name   filename
   29 #
   30 # If filename is missing, the default is
   31 # opt_<name-of-option-in-lower-case>.h
   32 
   33 AAC_DEBUG               opt_aac.h
   34 AACRAID_DEBUG           opt_aacraid.h
   35 AHC_ALLOW_MEMIO         opt_aic7xxx.h
   36 AHC_TMODE_ENABLE        opt_aic7xxx.h
   37 AHC_DUMP_EEPROM         opt_aic7xxx.h
   38 AHC_DEBUG               opt_aic7xxx.h
   39 AHC_DEBUG_OPTS          opt_aic7xxx.h
   40 AHC_REG_PRETTY_PRINT    opt_aic7xxx.h
   41 AHD_DEBUG               opt_aic79xx.h
   42 AHD_DEBUG_OPTS          opt_aic79xx.h
   43 AHD_TMODE_ENABLE        opt_aic79xx.h   
   44 AHD_REG_PRETTY_PRINT    opt_aic79xx.h
   45 
   46 # Debugging options.
   47 ALT_BREAK_TO_DEBUGGER   opt_kdb.h
   48 BREAK_TO_DEBUGGER       opt_kdb.h
   49 BUF_TRACKING            opt_global.h
   50 DDB
   51 DDB_BUFR_SIZE   opt_ddb.h
   52 DDB_CAPTURE_DEFAULTBUFSIZE      opt_ddb.h
   53 DDB_CAPTURE_MAXBUFSIZE  opt_ddb.h
   54 DDB_CTF         opt_ddb.h
   55 DDB_NUMSYM      opt_ddb.h
   56 EARLY_PRINTF    opt_global.h
   57 FULL_BUF_TRACKING       opt_global.h
   58 GDB
   59 KDB             opt_global.h
   60 KDB_TRACE       opt_kdb.h
   61 KDB_UNATTENDED  opt_kdb.h
   62 KLD_DEBUG       opt_kld.h
   63 NUM_CORE_FILES  opt_global.h
   64 QUEUE_MACRO_DEBUG_TRACE opt_global.h
   65 QUEUE_MACRO_DEBUG_TRASH opt_global.h
   66 SYSCTL_DEBUG    opt_sysctl.h
   67 TEXTDUMP_PREFERRED      opt_ddb.h
   68 TEXTDUMP_VERBOSE        opt_ddb.h
   69 TSLOG   opt_global.h
   70 TSLOGSIZE       opt_global.h
   71 
   72 # Miscellaneous options.
   73 ALQ
   74 ALTERA_SDCARD_FAST_SIM  opt_altera_sdcard.h
   75 ATSE_CFI_HACK   opt_cfi.h
   76 AUDIT           opt_global.h
   77 BOOTHOWTO       opt_global.h
   78 BOOTVERBOSE     opt_global.h
   79 CALLOUT_PROFILING
   80 CAPABILITIES    opt_capsicum.h
   81 CAPABILITY_MODE opt_capsicum.h
   82 CC_CDG          opt_global.h
   83 CC_CHD          opt_global.h
   84 CC_CUBIC        opt_global.h
   85 CC_DEFAULT      opt_cc.h
   86 CC_DCTCP        opt_global.h
   87 CC_HD           opt_global.h
   88 CC_HTCP         opt_global.h
   89 CC_NEWRENO      opt_global.h
   90 CC_VEGAS        opt_global.h
   91 COMPAT_43       opt_global.h
   92 COMPAT_43TTY    opt_global.h
   93 COMPAT_FREEBSD4 opt_global.h
   94 COMPAT_FREEBSD5 opt_global.h
   95 COMPAT_FREEBSD6 opt_global.h
   96 COMPAT_FREEBSD7 opt_global.h
   97 COMPAT_FREEBSD9 opt_global.h
   98 COMPAT_FREEBSD10        opt_global.h
   99 COMPAT_FREEBSD11        opt_global.h
  100 COMPAT_FREEBSD12        opt_global.h
  101 COMPAT_FREEBSD13        opt_global.h
  102 COMPAT_LINUXKPI opt_dontuse.h
  103 _COMPAT_LINUX32 opt_compat.h    # XXX: make sure opt_compat.h exists
  104 COMPILING_LINT  opt_global.h
  105 CY_PCI_FASTINTR
  106 DEADLKRES       opt_watchdog.h
  107 EXPERIMENTAL    opt_global.h
  108 DIRECTIO
  109 FILEMON         opt_dontuse.h
  110 FFCLOCK
  111 FULL_PREEMPTION opt_sched.h
  112 GZIO            opt_gzio.h
  113 IMGACT_BINMISC          opt_dontuse.h
  114 IPI_PREEMPTION  opt_sched.h
  115 GEOM_BDE        opt_geom.h
  116 GEOM_CACHE      opt_geom.h
  117 GEOM_CONCAT     opt_geom.h
  118 GEOM_ELI        opt_geom.h
  119 GEOM_GATE       opt_geom.h
  120 GEOM_JOURNAL    opt_geom.h
  121 GEOM_LABEL      opt_geom.h
  122 GEOM_LABEL_GPT  opt_geom.h
  123 GEOM_LINUX_LVM  opt_geom.h
  124 GEOM_MAP        opt_geom.h
  125 GEOM_MIRROR     opt_geom.h
  126 GEOM_MOUNTVER   opt_geom.h
  127 GEOM_MULTIPATH  opt_geom.h
  128 GEOM_NOP        opt_geom.h
  129 GEOM_PART_APM   opt_geom.h
  130 GEOM_PART_BSD   opt_geom.h
  131 GEOM_PART_BSD64 opt_geom.h
  132 GEOM_PART_EBR   opt_geom.h
  133 GEOM_PART_GPT   opt_geom.h
  134 GEOM_PART_LDM   opt_geom.h
  135 GEOM_PART_MBR   opt_geom.h
  136 GEOM_PART_VTOC8 opt_geom.h
  137 GEOM_RAID       opt_geom.h
  138 GEOM_RAID3      opt_geom.h
  139 GEOM_SHSEC      opt_geom.h
  140 GEOM_STRIPE     opt_geom.h
  141 GEOM_UZIP       opt_geom.h
  142 GEOM_UZIP_DEBUG opt_geom.h
  143 GEOM_VINUM      opt_geom.h
  144 GEOM_VIRSTOR    opt_geom.h
  145 GEOM_ZERO       opt_geom.h
  146 IFLIB           opt_iflib.h
  147 KDTRACE_HOOKS   opt_global.h
  148 KDTRACE_FRAME   opt_kdtrace.h
  149 KN_HASHSIZE     opt_kqueue.h
  150 KSTACK_MAX_PAGES
  151 KSTACK_PAGES
  152 KSTACK_USAGE_PROF
  153 KTRACE
  154 KTRACE_REQUEST_POOL     opt_ktrace.h
  155 LIBICONV
  156 MAC             opt_global.h
  157 MAC_BIBA        opt_dontuse.h
  158 MAC_BSDEXTENDED opt_dontuse.h
  159 MAC_DDB         opt_dontuse.h
  160 MAC_IFOFF       opt_dontuse.h
  161 MAC_LOMAC       opt_dontuse.h
  162 MAC_MLS         opt_dontuse.h
  163 MAC_NONE        opt_dontuse.h
  164 MAC_NTPD        opt_dontuse.h
  165 MAC_PARTITION   opt_dontuse.h
  166 MAC_PORTACL     opt_dontuse.h
  167 MAC_PRIORITY    opt_dontuse.h
  168 MAC_SEEOTHERUIDS        opt_dontuse.h
  169 MAC_STATIC      opt_mac.h
  170 MAC_STUB        opt_dontuse.h
  171 MAC_TEST        opt_dontuse.h
  172 MAC_VERIEXEC    opt_dontuse.h
  173 MAC_VERIEXEC_SHA1       opt_dontuse.h
  174 MAC_VERIEXEC_SHA256     opt_dontuse.h
  175 MAC_VERIEXEC_SHA384     opt_dontuse.h
  176 MAC_VERIEXEC_SHA512     opt_dontuse.h
  177 MD_ROOT         opt_md.h
  178 MD_ROOT_FSTYPE  opt_md.h
  179 MD_ROOT_READONLY        opt_md.h
  180 MD_ROOT_SIZE    opt_md.h
  181 MD_ROOT_MEM     opt_md.h
  182 MFI_DEBUG       opt_mfi.h
  183 MFI_DECODE_LOG  opt_mfi.h
  184 MPROF_BUFFERS   opt_mprof.h
  185 MPROF_HASH_SIZE opt_mprof.h
  186 NEW_PCIB        opt_global.h
  187 NO_ADAPTIVE_MUTEXES     opt_adaptive_mutexes.h
  188 NO_ADAPTIVE_RWLOCKS
  189 NO_ADAPTIVE_SX
  190 NO_OBSOLETE_CODE        opt_global.h
  191 NO_SYSCTL_DESCR opt_global.h
  192 NSWBUF_MIN      opt_param.h
  193 MBUF_PACKET_ZONE_DISABLE        opt_global.h
  194 PANIC_REBOOT_WAIT_TIME  opt_panic.h
  195 PCI_HP          opt_pci.h
  196 PCI_IOV         opt_global.h
  197 PPC_DEBUG       opt_ppc.h
  198 PPC_PROBE_CHIPSET       opt_ppc.h
  199 PPS_SYNC        opt_ntp.h
  200 PREEMPTION      opt_sched.h
  201 QUOTA
  202 SCHED_4BSD      opt_sched.h
  203 SCHED_STATS     opt_sched.h
  204 SCHED_ULE       opt_sched.h
  205 SLEEPQUEUE_PROFILING
  206 SLHCI_DEBUG     opt_slhci.h
  207 STACK           opt_stack.h
  208 SUIDDIR
  209 MSGMNB          opt_sysvipc.h
  210 MSGMNI          opt_sysvipc.h
  211 MSGSEG          opt_sysvipc.h
  212 MSGSSZ          opt_sysvipc.h
  213 MSGTQL          opt_sysvipc.h
  214 SEMMNI          opt_sysvipc.h
  215 SEMMNS          opt_sysvipc.h
  216 SEMMNU          opt_sysvipc.h
  217 SEMMSL          opt_sysvipc.h
  218 SEMOPM          opt_sysvipc.h
  219 SEMUME          opt_sysvipc.h
  220 SHMALL          opt_sysvipc.h
  221 SHMMAX          opt_sysvipc.h
  222 SHMMAXPGS       opt_sysvipc.h
  223 SHMMIN          opt_sysvipc.h
  224 SHMMNI          opt_sysvipc.h
  225 SHMSEG          opt_sysvipc.h
  226 SYSVMSG         opt_sysvipc.h
  227 SYSVSEM         opt_sysvipc.h
  228 SYSVSHM         opt_sysvipc.h
  229 SW_WATCHDOG     opt_watchdog.h
  230 TCPHPTS         opt_inet.h
  231 TURNSTILE_PROFILING
  232 UMTX_PROFILING
  233 UMTX_CHAINS     opt_global.h
  234 VERBOSE_SYSINIT
  235 ZSTDIO          opt_zstdio.h
  236 
  237 # Sanitizers
  238 COVERAGE        opt_global.h
  239 KASAN           opt_global.h
  240 KCOV
  241 KCSAN           opt_global.h
  242 KMSAN           opt_global.h
  243 KUBSAN          opt_global.h
  244 
  245 # POSIX kernel options
  246 P1003_1B_MQUEUE                 opt_posix.h
  247 P1003_1B_SEMAPHORES             opt_posix.h
  248 _KPOSIX_PRIORITY_SCHEDULING     opt_posix.h
  249 
  250 # Do we want the config file compiled into the kernel?
  251 INCLUDE_CONFIG_FILE     opt_config.h
  252 
  253 # Options for static filesystems.  These should only be used at config
  254 # time, since the corresponding lkms cannot work if there are any static
  255 # dependencies.  Unusability is enforced by hiding the defines for the
  256 # options in a never-included header.
  257 AUTOFS          opt_dontuse.h
  258 CD9660          opt_dontuse.h
  259 EXT2FS          opt_dontuse.h
  260 FDESCFS         opt_dontuse.h
  261 FFS             opt_dontuse.h
  262 FUSEFS          opt_dontuse.h
  263 MSDOSFS         opt_dontuse.h
  264 NULLFS          opt_dontuse.h
  265 PROCFS          opt_dontuse.h
  266 PSEUDOFS        opt_dontuse.h
  267 SMBFS           opt_dontuse.h
  268 TMPFS           opt_dontuse.h
  269 UDF             opt_dontuse.h
  270 UNIONFS         opt_dontuse.h
  271 ZFS             opt_dontuse.h
  272 
  273 # Pseudofs debugging
  274 PSEUDOFS_TRACE  opt_pseudofs.h
  275 
  276 # In-kernel GSS-API
  277 KGSSAPI         opt_kgssapi.h
  278 KGSSAPI_DEBUG   opt_kgssapi.h
  279 
  280 # These static filesystems have one slightly bogus static dependency in
  281 # sys/i386/i386/autoconf.c.  If any of these filesystems are
  282 # statically compiled into the kernel, code for mounting them as root
  283 # filesystems will be enabled - but look below.
  284 # NFSCL - client
  285 # NFSD - server
  286 NFSCL           opt_nfs.h
  287 NFSD            opt_nfs.h
  288 
  289 # filesystems and libiconv bridge
  290 CD9660_ICONV    opt_dontuse.h
  291 MSDOSFS_ICONV   opt_dontuse.h
  292 UDF_ICONV       opt_dontuse.h
  293 
  294 # If you are following the conditions in the copyright,
  295 # you can enable soft-updates which will speed up a lot of thigs
  296 # and make the system safer from crashes at the same time.
  297 # otherwise a STUB module will be compiled in.
  298 SOFTUPDATES     opt_ffs.h
  299 
  300 # On small, embedded systems, it can be useful to turn off support for
  301 # snapshots.  It saves about 30-40k for a feature that would be lightly
  302 # used, if it is used at all.
  303 NO_FFS_SNAPSHOT opt_ffs.h
  304 
  305 # Enabling this option turns on support for Access Control Lists in UFS,
  306 # which can be used to support high security configurations.  Depends on
  307 # UFS_EXTATTR.
  308 UFS_ACL         opt_ufs.h
  309 
  310 # Enabling this option turns on support for extended attributes in UFS-based
  311 # filesystems, which can be used to support high security configurations
  312 # as well as new filesystem features.
  313 UFS_EXTATTR     opt_ufs.h
  314 UFS_EXTATTR_AUTOSTART   opt_ufs.h
  315 
  316 # Enable fast hash lookups for large directories on UFS-based filesystems.
  317 UFS_DIRHASH     opt_ufs.h
  318 
  319 # Enable gjournal-based UFS journal.
  320 UFS_GJOURNAL    opt_ufs.h
  321 
  322 # The below sentence is not in English, and neither is this one.
  323 # We plan to remove the static dependences above, with a
  324 # <filesystem>_ROOT option to control if it usable as root.  This list
  325 # allows these options to be present in config files already (though
  326 # they won't make any difference yet).
  327 NFS_ROOT        opt_nfsroot.h
  328 
  329 # SMB/CIFS requester
  330 NETSMB          opt_netsmb.h
  331 
  332 # Enable debugnet(4) networking support.
  333 DEBUGNET        opt_global.h
  334 # Enable netdump(4) client support.
  335 NETDUMP         opt_global.h
  336 # Enable netgdb(4) support.
  337 NETGDB          opt_global.h
  338 
  339 # Options used only in subr_param.c.
  340 HZ              opt_param.h
  341 MAXFILES        opt_param.h
  342 NBUF            opt_param.h
  343 NSFBUFS         opt_param.h
  344 VM_BCACHE_SIZE_MAX      opt_param.h
  345 VM_SWZONE_SIZE_MAX      opt_param.h
  346 MAXUSERS
  347 DFLDSIZ         opt_param.h
  348 MAXDSIZ         opt_param.h
  349 MAXSSIZ         opt_param.h
  350 
  351 # Generic SCSI options.
  352 CAM_MAX_HIGHPOWER       opt_cam.h
  353 CAMDEBUG                opt_cam.h
  354 CAM_DEBUG_COMPILE       opt_cam.h
  355 CAM_DEBUG_DELAY         opt_cam.h
  356 CAM_DEBUG_BUS           opt_cam.h
  357 CAM_DEBUG_TARGET        opt_cam.h
  358 CAM_DEBUG_LUN           opt_cam.h
  359 CAM_DEBUG_FLAGS         opt_cam.h
  360 CAM_BOOT_DELAY          opt_cam.h
  361 CAM_IOSCHED_DYNAMIC     opt_cam.h
  362 CAM_IO_STATS            opt_cam.h
  363 CAM_TEST_FAILURE        opt_cam.h
  364 SCSI_DELAY              opt_scsi.h
  365 SCSI_NO_SENSE_STRINGS   opt_scsi.h
  366 SCSI_NO_OP_STRINGS      opt_scsi.h
  367 
  368 # Options used only in cam/ata/ata_da.c
  369 ATA_STATIC_ID           opt_ada.h
  370 
  371 # Options used only in cam/scsi/scsi_cd.c
  372 CHANGER_MIN_BUSY_SECONDS        opt_cd.h
  373 CHANGER_MAX_BUSY_SECONDS        opt_cd.h
  374 
  375 # Options used only in cam/scsi/scsi_da.c
  376 DA_TRACK_REFS           opt_da.h
  377 
  378 # Options used only in cam/scsi/scsi_sa.c.
  379 SA_IO_TIMEOUT           opt_sa.h
  380 SA_SPACE_TIMEOUT        opt_sa.h
  381 SA_REWIND_TIMEOUT       opt_sa.h
  382 SA_ERASE_TIMEOUT        opt_sa.h
  383 SA_1FM_AT_EOD           opt_sa.h
  384 
  385 # Options used only in cam/scsi/scsi_pt.c
  386 SCSI_PT_DEFAULT_TIMEOUT opt_pt.h
  387 
  388 # Options used only in cam/scsi/scsi_ses.c
  389 SES_ENABLE_PASSTHROUGH  opt_ses.h
  390 
  391 # Options used in dev/sym/ (Symbios SCSI driver).
  392 SYM_SETUP_SCSI_DIFF     opt_sym.h       #-HVD support for 825a, 875, 885
  393                                         # disabled:0 (default), enabled:1
  394 SYM_SETUP_PCI_PARITY    opt_sym.h       #-PCI parity checking
  395                                         # disabled:0, enabled:1 (default)
  396 SYM_SETUP_MAX_LUN       opt_sym.h       #-Number of LUNs supported
  397                                         # default:8, range:[1..64]
  398 
  399 # Options used only in dev/isp/*
  400 ISP_TARGET_MODE         opt_isp.h
  401 ISP_FW_CRASH_DUMP       opt_isp.h
  402 ISP_DEFAULT_ROLES       opt_isp.h
  403 ISP_INTERNAL_TARGET     opt_isp.h
  404 ISP_FCTAPE_OFF          opt_isp.h
  405 
  406 # Options used only in dev/iscsi
  407 ISCSI_INITIATOR_DEBUG   opt_iscsi_initiator.h
  408 
  409 # Net stuff.
  410 ACCEPT_FILTER_DATA
  411 ACCEPT_FILTER_DNS
  412 ACCEPT_FILTER_HTTP
  413 ALTQ                    opt_global.h
  414 ALTQ_CBQ                opt_altq.h
  415 ALTQ_CDNR               opt_altq.h
  416 ALTQ_CODEL              opt_altq.h
  417 ALTQ_DEBUG              opt_altq.h
  418 ALTQ_HFSC               opt_altq.h
  419 ALTQ_FAIRQ              opt_altq.h
  420 ALTQ_NOPCC              opt_altq.h
  421 ALTQ_PRIQ               opt_altq.h
  422 ALTQ_RED                opt_altq.h
  423 ALTQ_RIO                opt_altq.h
  424 BOOTP                   opt_bootp.h
  425 BOOTP_BLOCKSIZE         opt_bootp.h
  426 BOOTP_COMPAT            opt_bootp.h
  427 BOOTP_NFSROOT           opt_bootp.h
  428 BOOTP_NFSV3             opt_bootp.h
  429 BOOTP_WIRED_TO          opt_bootp.h
  430 DEVICE_POLLING
  431 DUMMYNET                opt_ipdn.h
  432 RATELIMIT               opt_ratelimit.h
  433 RATELIMIT_DEBUG         opt_ratelimit.h
  434 INET                    opt_inet.h
  435 INET6                   opt_inet6.h
  436 STATS                   opt_global.h
  437 IPDIVERT
  438 IPFILTER                opt_ipfilter.h
  439 IPFILTER_DEFAULT_BLOCK  opt_ipfilter.h
  440 IPFILTER_LOG            opt_ipfilter.h
  441 IPFILTER_LOOKUP         opt_ipfilter.h
  442 IPFIREWALL              opt_ipfw.h
  443 IPFIREWALL_DEFAULT_TO_ACCEPT    opt_ipfw.h
  444 IPFIREWALL_NAT          opt_ipfw.h
  445 IPFIREWALL_NAT64        opt_ipfw.h
  446 IPFIREWALL_NPTV6        opt_ipfw.h
  447 IPFIREWALL_VERBOSE      opt_ipfw.h
  448 IPFIREWALL_VERBOSE_LIMIT        opt_ipfw.h
  449 IPFIREWALL_PMOD         opt_ipfw.h
  450 IPSEC                   opt_ipsec.h
  451 IPSEC_DEBUG             opt_ipsec.h
  452 IPSEC_SUPPORT           opt_ipsec.h
  453 IPSTEALTH
  454 KERN_TLS
  455 KRPC
  456 LIBALIAS
  457 LIBMCHAIN
  458 MBUF_PROFILING
  459 MBUF_STRESS_TEST
  460 MROUTING                opt_mrouting.h
  461 NFSLOCKD
  462 NETLINK
  463 PF_DEFAULT_TO_DROP      opt_pf.h
  464 ROUTE_MPATH             opt_route.h
  465 ROUTETABLES             opt_route.h
  466 FIB_ALGO                opt_route.h
  467 RSS                     opt_rss.h
  468 SLIP_IFF_OPTS           opt_slip.h
  469 TCPPCAP         opt_global.h
  470 SIFTR
  471 TCP_BLACKBOX            opt_global.h
  472 TCP_HHOOK               opt_global.h
  473 TCP_OFFLOAD             opt_inet.h # Enable code to dispatch TCP offloading
  474 TCP_RFC7413             opt_inet.h
  475 TCP_RFC7413_MAX_KEYS    opt_inet.h
  476 TCP_RFC7413_MAX_PSKS    opt_inet.h
  477 TCP_SIGNATURE           opt_ipsec.h
  478 VLAN_ARRAY              opt_vlan.h
  479 XDR
  480 XBONEHACK
  481 
  482 #
  483 # SCTP
  484 #
  485 SCTP                    opt_sctp.h
  486 SCTP_SUPPORT            opt_sctp.h
  487 SCTP_DEBUG              opt_sctp.h # Enable debug printfs
  488 SCTP_LOCK_LOGGING       opt_sctp.h # Log to KTR lock activity
  489 SCTP_MBUF_LOGGING       opt_sctp.h # Log to KTR general mbuf aloc/free
  490 SCTP_MBCNT_LOGGING      opt_sctp.h # Log to KTR mbcnt activity
  491 SCTP_PACKET_LOGGING     opt_sctp.h # Log to a packet buffer last N packets
  492 SCTP_LTRACE_CHUNKS      opt_sctp.h # Log to KTR chunks processed
  493 SCTP_LTRACE_ERRORS      opt_sctp.h # Log to KTR error returns.
  494 SCTP_USE_PERCPU_STAT    opt_sctp.h # Use per cpu stats.
  495 SCTP_MCORE_INPUT        opt_sctp.h # Have multiple input threads for input mbufs
  496 SCTP_LOCAL_TRACE_BUF    opt_sctp.h # Use tracebuffer exported via sysctl
  497 SCTP_DETAILED_STR_STATS opt_sctp.h # Use per PR-SCTP policy stream stats
  498 #
  499 #
  500 #
  501 
  502 # Netgraph(4). Use option NETGRAPH to enable the base netgraph code.
  503 # Each netgraph node type can be either be compiled into the kernel
  504 # or loaded dynamically. To get the former, include the corresponding
  505 # option below. Each type has its own man page, e.g. ng_async(4).
  506 NETGRAPH
  507 NETGRAPH_DEBUG          opt_netgraph.h
  508 NETGRAPH_ASYNC          opt_netgraph.h
  509 NETGRAPH_ATMLLC         opt_netgraph.h
  510 NETGRAPH_ATM_ATMPIF     opt_netgraph.h
  511 NETGRAPH_BLUETOOTH      opt_netgraph.h
  512 NETGRAPH_BLUETOOTH_BT3C opt_netgraph.h
  513 NETGRAPH_BLUETOOTH_H4   opt_netgraph.h
  514 NETGRAPH_BLUETOOTH_HCI  opt_netgraph.h
  515 NETGRAPH_BLUETOOTH_L2CAP        opt_netgraph.h
  516 NETGRAPH_BLUETOOTH_SOCKET       opt_netgraph.h
  517 NETGRAPH_BLUETOOTH_UBT  opt_netgraph.h
  518 NETGRAPH_BLUETOOTH_UBTBCMFW     opt_netgraph.h
  519 NETGRAPH_BPF            opt_netgraph.h
  520 NETGRAPH_BRIDGE         opt_netgraph.h
  521 NETGRAPH_CAR            opt_netgraph.h
  522 NETGRAPH_CHECKSUM       opt_netgraph.h
  523 NETGRAPH_CISCO          opt_netgraph.h
  524 NETGRAPH_DEFLATE        opt_netgraph.h
  525 NETGRAPH_DEVICE         opt_netgraph.h
  526 NETGRAPH_ECHO           opt_netgraph.h
  527 NETGRAPH_EIFACE         opt_netgraph.h
  528 NETGRAPH_ETHER          opt_netgraph.h
  529 NETGRAPH_ETHER_ECHO     opt_netgraph.h
  530 NETGRAPH_FEC            opt_netgraph.h
  531 NETGRAPH_FRAME_RELAY    opt_netgraph.h
  532 NETGRAPH_GIF            opt_netgraph.h
  533 NETGRAPH_GIF_DEMUX      opt_netgraph.h
  534 NETGRAPH_HOLE           opt_netgraph.h
  535 NETGRAPH_IFACE          opt_netgraph.h
  536 NETGRAPH_IP_INPUT       opt_netgraph.h
  537 NETGRAPH_IPFW           opt_netgraph.h
  538 NETGRAPH_KSOCKET        opt_netgraph.h
  539 NETGRAPH_L2TP           opt_netgraph.h
  540 NETGRAPH_LMI            opt_netgraph.h
  541 NETGRAPH_MPPC_COMPRESSION       opt_netgraph.h
  542 NETGRAPH_MPPC_ENCRYPTION        opt_netgraph.h
  543 NETGRAPH_NAT            opt_netgraph.h
  544 NETGRAPH_NETFLOW        opt_netgraph.h
  545 NETGRAPH_ONE2MANY       opt_netgraph.h
  546 NETGRAPH_PATCH          opt_netgraph.h
  547 NETGRAPH_PIPE           opt_netgraph.h
  548 NETGRAPH_PPP            opt_netgraph.h
  549 NETGRAPH_PPPOE          opt_netgraph.h
  550 NETGRAPH_PPTPGRE        opt_netgraph.h
  551 NETGRAPH_PRED1          opt_netgraph.h
  552 NETGRAPH_RFC1490        opt_netgraph.h
  553 NETGRAPH_SOCKET         opt_netgraph.h
  554 NETGRAPH_SPLIT          opt_netgraph.h
  555 NETGRAPH_SPPP           opt_netgraph.h
  556 NETGRAPH_TAG            opt_netgraph.h
  557 NETGRAPH_TCPMSS         opt_netgraph.h
  558 NETGRAPH_TEE            opt_netgraph.h
  559 NETGRAPH_TTY            opt_netgraph.h
  560 NETGRAPH_UI             opt_netgraph.h
  561 NETGRAPH_VJC            opt_netgraph.h
  562 NETGRAPH_VLAN           opt_netgraph.h
  563 
  564 # NgATM options
  565 NGATM_ATM               opt_netgraph.h
  566 NGATM_ATMBASE           opt_netgraph.h
  567 NGATM_SSCOP             opt_netgraph.h
  568 NGATM_SSCFU             opt_netgraph.h
  569 NGATM_UNI               opt_netgraph.h
  570 NGATM_CCATM             opt_netgraph.h
  571 
  572 # DRM options
  573 DRM_DEBUG               opt_drm.h
  574 
  575 TI_SF_BUF_JUMBO         opt_ti.h
  576 TI_JUMBO_HDRSPLIT       opt_ti.h
  577 
  578 # Misc debug flags.  Most of these should probably be replaced with
  579 # 'DEBUG', and then let people recompile just the interesting modules
  580 # with 'make CC="cc -DDEBUG"'.
  581 DEBUG_1284              opt_ppb_1284.h
  582 LPT_DEBUG               opt_lpt.h
  583 PLIP_DEBUG              opt_plip.h
  584 LOCKF_DEBUG             opt_debug_lockf.h
  585 SI_DEBUG                opt_debug_si.h
  586 IFMEDIA_DEBUG           opt_ifmedia.h
  587 
  588 # Fb options
  589 FB_DEBUG                opt_fb.h
  590 
  591 # ppbus related options
  592 PERIPH_1284             opt_ppb_1284.h
  593 DONTPROBE_1284          opt_ppb_1284.h
  594 
  595 # smbus related options
  596 ENABLE_ALART            opt_intpm.h
  597 
  598 # These cause changes all over the kernel
  599 BLKDEV_IOSIZE           opt_global.h
  600 BURN_BRIDGES            opt_global.h
  601 DEBUG                   opt_global.h
  602 DEBUG_LOCKS             opt_global.h
  603 DEBUG_VFS_LOCKS         opt_global.h
  604 DFLTPHYS                opt_global.h
  605 DIAGNOSTIC              opt_global.h
  606 INVARIANT_SUPPORT       opt_global.h
  607 INVARIANTS              opt_global.h
  608 KASSERT_PANIC_OPTIONAL  opt_global.h
  609 MAXCPU                  opt_global.h
  610 MAXMEMDOM               opt_global.h
  611 MAXPHYS                 opt_maxphys.h
  612 MCLSHIFT                opt_global.h
  613 MUTEX_NOINLINE          opt_global.h
  614 LOCK_PROFILING          opt_global.h
  615 MSIZE                   opt_global.h
  616 REGRESSION              opt_global.h
  617 RWLOCK_NOINLINE         opt_global.h
  618 SX_NOINLINE             opt_global.h
  619 VFS_BIO_DEBUG           opt_global.h
  620 
  621 # These are VM related options
  622 VM_KMEM_SIZE            opt_vm.h
  623 VM_KMEM_SIZE_SCALE      opt_vm.h
  624 VM_KMEM_SIZE_MAX        opt_vm.h
  625 VM_NRESERVLEVEL         opt_vm.h
  626 VM_LEVEL_0_ORDER        opt_vm.h
  627 NO_SWAPPING             opt_vm.h
  628 MALLOC_MAKE_FAILURES    opt_vm.h
  629 MALLOC_PROFILE          opt_vm.h
  630 MALLOC_DEBUG_MAXZONES   opt_vm.h
  631 
  632 # The MemGuard replacement allocator used for tamper-after-free detection
  633 DEBUG_MEMGUARD          opt_vm.h
  634 
  635 # The RedZone malloc(9) protection
  636 DEBUG_REDZONE           opt_vm.h
  637 
  638 # Standard SMP options
  639 EARLY_AP_STARTUP        opt_global.h
  640 SMP                     opt_global.h
  641 NUMA                    opt_global.h
  642 
  643 # Size of the kernel message buffer
  644 MSGBUF_SIZE             opt_msgbuf.h
  645 
  646 # NFS options
  647 NFS_MINATTRTIMO         opt_nfs.h
  648 NFS_MAXATTRTIMO         opt_nfs.h
  649 NFS_MINDIRATTRTIMO      opt_nfs.h
  650 NFS_MAXDIRATTRTIMO      opt_nfs.h
  651 NFS_DEBUG               opt_nfs.h
  652 
  653 # TMPFS options
  654 TMPFS_PAGES_MINRESERVED         opt_tmpfs.h
  655 
  656 # Options for uart(4)
  657 UART_PPS_ON_CTS         opt_uart.h
  658 UART_POLL_FREQ          opt_uart.h
  659 UART_DEV_TOLERANCE_PCT  opt_uart.h
  660 
  661 # options for bus/device framework
  662 BUS_DEBUG               opt_bus.h
  663 
  664 # options for USB support
  665 USB_DEBUG               opt_usb.h
  666 USB_HOST_ALIGN          opt_usb.h
  667 USB_REQ_DEBUG           opt_usb.h
  668 USB_TEMPLATE            opt_usb.h
  669 USB_VERBOSE             opt_usb.h
  670 USB_DMA_SINGLE_ALLOC    opt_usb.h
  671 USB_EHCI_BIG_ENDIAN_DESC        opt_usb.h
  672 U3G_DEBUG               opt_u3g.h
  673 UKBD_DFLT_KEYMAP        opt_ukbd.h
  674 UPLCOM_INTR_INTERVAL    opt_uplcom.h
  675 UVSCOM_DEFAULT_OPKTSIZE opt_uvscom.h
  676 UVSCOM_INTR_INTERVAL    opt_uvscom.h
  677 
  678 # options for the Realtek rtwn driver
  679 RTWN_DEBUG              opt_rtwn.h
  680 RTWN_WITHOUT_UCODE      opt_rtwn.h
  681 
  682 # Embedded system options
  683 INIT_PATH
  684 
  685 ROOTDEVNAME
  686 
  687 FDC_DEBUG               opt_fdc.h
  688 PCFCLOCK_VERBOSE        opt_pcfclock.h
  689 PCFCLOCK_MAX_RETRIES    opt_pcfclock.h
  690 
  691 KTR                     opt_global.h
  692 KTR_ALQ                 opt_ktr.h
  693 KTR_MASK                opt_ktr.h
  694 KTR_CPUMASK             opt_ktr.h
  695 KTR_COMPILE             opt_global.h
  696 KTR_BOOT_ENTRIES        opt_global.h
  697 KTR_ENTRIES             opt_global.h
  698 KTR_VERBOSE             opt_ktr.h
  699 WITNESS                 opt_global.h
  700 WITNESS_KDB             opt_witness.h
  701 WITNESS_NO_VNODE        opt_witness.h
  702 WITNESS_SKIPSPIN        opt_witness.h
  703 WITNESS_COUNT           opt_witness.h
  704 OPENSOLARIS_WITNESS     opt_global.h
  705 
  706 EPOCH_TRACE             opt_global.h
  707 
  708 # options for ACPI support
  709 ACPI_DEBUG              opt_acpi.h
  710 ACPI_MAX_TASKS          opt_acpi.h
  711 ACPI_MAX_THREADS        opt_acpi.h
  712 DEV_ACPI                opt_acpi.h
  713 ACPI_EARLY_EPYC_WAR     opt_acpi.h
  714 
  715 # options for IOMMU support
  716 IOMMU                   opt_iommu.h
  717 
  718 # ISA support
  719 DEV_ISA                 opt_isa.h
  720 ISAPNP                  opt_dontuse.h
  721 
  722 # various 'device presence' options.
  723 DEV_BPF                 opt_bpf.h
  724 DEV_CARP                opt_carp.h
  725 DEV_NETMAP              opt_global.h
  726 DEV_PCI                 opt_pci.h
  727 DEV_PF                  opt_pf.h
  728 DEV_PFLOG               opt_pf.h
  729 DEV_PFSYNC              opt_pf.h
  730 DEV_SPLASH              opt_splash.h
  731 DEV_VLAN                opt_vlan.h
  732 
  733 # bce driver
  734 BCE_DEBUG               opt_bce.h
  735 BCE_NVRAM_WRITE_SUPPORT opt_bce.h
  736 
  737 SOCKBUF_DEBUG           opt_global.h
  738 
  739 
  740 # options for hifn driver
  741 HIFN_DEBUG              opt_hifn.h
  742 HIFN_RNDTEST            opt_hifn.h
  743 
  744 # options for safenet driver
  745 SAFE_DEBUG              opt_safe.h
  746 SAFE_NO_RNG             opt_safe.h
  747 SAFE_RNDTEST            opt_safe.h
  748 
  749 # syscons/vt options
  750 MAXCONS                 opt_syscons.h
  751 SC_ALT_MOUSE_IMAGE      opt_syscons.h
  752 SC_CUT_SPACES2TABS      opt_syscons.h
  753 SC_CUT_SEPCHARS         opt_syscons.h
  754 SC_DEBUG_LEVEL          opt_syscons.h
  755 SC_DFLT_FONT            opt_syscons.h
  756 SC_DFLT_TERM            opt_syscons.h
  757 SC_DISABLE_KDBKEY       opt_syscons.h
  758 SC_DISABLE_REBOOT       opt_syscons.h
  759 SC_HISTORY_SIZE         opt_syscons.h
  760 SC_KERNEL_CONS_ATTR     opt_syscons.h
  761 SC_KERNEL_CONS_ATTRS    opt_syscons.h
  762 SC_KERNEL_CONS_REV_ATTR opt_syscons.h
  763 SC_MOUSE_CHAR           opt_syscons.h
  764 SC_NO_CUTPASTE          opt_syscons.h
  765 SC_NO_FONT_LOADING      opt_syscons.h
  766 SC_NO_HISTORY           opt_syscons.h
  767 SC_NO_MODE_CHANGE       opt_syscons.h
  768 SC_NO_SUSPEND_VTYSWITCH opt_syscons.h
  769 SC_NO_SYSMOUSE          opt_syscons.h
  770 SC_NO_TERM_DUMB         opt_syscons.h
  771 SC_NO_TERM_SC           opt_syscons.h
  772 SC_NO_TERM_TEKEN        opt_syscons.h
  773 SC_NORM_ATTR            opt_syscons.h
  774 SC_NORM_REV_ATTR        opt_syscons.h
  775 SC_PIXEL_MODE           opt_syscons.h
  776 SC_RENDER_DEBUG         opt_syscons.h
  777 SC_TWOBUTTON_MOUSE      opt_syscons.h
  778 VT_ALT_TO_ESC_HACK      opt_syscons.h
  779 VT_FB_MAX_WIDTH         opt_syscons.h
  780 VT_FB_MAX_HEIGHT        opt_syscons.h
  781 VT_MAXWINDOWS           opt_syscons.h
  782 VT_TWOBUTTON_MOUSE      opt_syscons.h
  783 DEV_SC                  opt_syscons.h
  784 DEV_VT                  opt_syscons.h
  785 
  786 # teken terminal emulator options
  787 TEKEN_CONS25            opt_teken.h
  788 TEKEN_UTF8              opt_teken.h
  789 TERMINAL_KERN_ATTR      opt_teken.h
  790 TERMINAL_NORM_ATTR      opt_teken.h
  791 
  792 # options for printf
  793 PRINTF_BUFR_SIZE        opt_printf.h
  794 BOOT_TAG                opt_printf.h
  795 BOOT_TAG_SZ             opt_printf.h
  796 
  797 # kbd options
  798 KBD_DISABLE_KEYMAP_LOAD opt_kbd.h
  799 KBD_INSTALL_CDEV        opt_kbd.h
  800 KBD_MAXRETRY            opt_kbd.h
  801 KBD_MAXWAIT             opt_kbd.h
  802 KBD_RESETDELAY          opt_kbd.h
  803 KBDIO_DEBUG             opt_kbd.h
  804 
  805 KBDMUX_DFLT_KEYMAP      opt_kbdmux.h
  806 
  807 # options for the Atheros driver
  808 ATH_DEBUG               opt_ath.h
  809 ATH_TXBUF               opt_ath.h
  810 ATH_RXBUF               opt_ath.h
  811 ATH_DIAGAPI             opt_ath.h
  812 ATH_TX99_DIAG           opt_ath.h
  813 ATH_ENABLE_11N          opt_ath.h
  814 ATH_ENABLE_DFS          opt_ath.h
  815 ATH_EEPROM_FIRMWARE     opt_ath.h
  816 ATH_ENABLE_RADIOTAP_VENDOR_EXT  opt_ath.h
  817 ATH_DEBUG_ALQ           opt_ath.h
  818 ATH_KTR_INTR_DEBUG      opt_ath.h
  819 
  820 # options for the Atheros hal
  821 # XXX For now, this breaks non-AR9130 chipsets, so only use it
  822 # XXX when actually targeting AR9130.
  823 AH_SUPPORT_AR9130       opt_ah.h
  824 
  825 # This is required for AR933x SoC support
  826 AH_SUPPORT_AR9330       opt_ah.h
  827 AH_SUPPORT_AR9340       opt_ah.h
  828 AH_SUPPORT_QCA9530      opt_ah.h
  829 AH_SUPPORT_QCA9550      opt_ah.h
  830 
  831 AH_DEBUG                opt_ah.h
  832 AH_ASSERT               opt_ah.h
  833 AH_DEBUG_ALQ            opt_ah.h
  834 AH_REGOPS_FUNC          opt_ah.h
  835 AH_WRITE_REGDOMAIN      opt_ah.h
  836 AH_DEBUG_COUNTRY        opt_ah.h
  837 AH_WRITE_EEPROM         opt_ah.h
  838 AH_PRIVATE_DIAG         opt_ah.h
  839 AH_NEED_DESC_SWAP       opt_ah.h
  840 AH_USE_INIPDGAIN        opt_ah.h
  841 AH_MAXCHAN              opt_ah.h
  842 AH_RXCFG_SDMAMW_4BYTES  opt_ah.h
  843 AH_INTERRUPT_DEBUGGING  opt_ah.h
  844 # AR5416 and later interrupt mitigation
  845 # XXX do not use this for AR9130
  846 AH_AR5416_INTERRUPT_MITIGATION  opt_ah.h
  847 
  848 # options for the Altera mSGDMA driver (altera_msgdma)
  849 ALTERA_MSGDMA_DESC_STD          opt_altera_msgdma.h
  850 ALTERA_MSGDMA_DESC_EXT          opt_altera_msgdma.h
  851 ALTERA_MSGDMA_DESC_PF_STD       opt_altera_msgdma.h
  852 ALTERA_MSGDMA_DESC_PF_EXT       opt_altera_msgdma.h
  853 
  854 # options for the Broadcom BCM43xx driver (bwi)
  855 BWI_DEBUG               opt_bwi.h
  856 BWI_DEBUG_VERBOSE       opt_bwi.h
  857 
  858 # options for the Brodacom BCM43xx driver (bwn)
  859 BWN_DEBUG               opt_bwn.h
  860 BWN_GPL_PHY             opt_bwn.h
  861 BWN_USE_SIBA            opt_bwn.h
  862 
  863 # Options for the SIBA driver
  864 SIBA_DEBUG              opt_siba.h
  865 
  866 # options for the Marvell 8335 wireless driver
  867 MALO_DEBUG              opt_malo.h
  868 MALO_TXBUF              opt_malo.h
  869 MALO_RXBUF              opt_malo.h
  870 
  871 # options for the Marvell wireless driver
  872 MWL_DEBUG               opt_mwl.h
  873 MWL_TXBUF               opt_mwl.h
  874 MWL_RXBUF               opt_mwl.h
  875 MWL_DIAGAPI             opt_mwl.h
  876 MWL_AGGR_SIZE           opt_mwl.h
  877 MWL_TX_NODROP           opt_mwl.h
  878 
  879 # Options for the Marvell NETA driver
  880 MVNETA_MULTIQUEUE       opt_mvneta.h
  881 MVNETA_KTR              opt_mvneta.h
  882 
  883 # Options for the Intel 802.11ac wireless driver
  884 IWM_DEBUG               opt_iwm.h
  885 
  886 # Options for the Intel 802.11n wireless driver
  887 IWN_DEBUG               opt_iwn.h
  888 
  889 # Options for the Intel 3945ABG wireless driver
  890 WPI_DEBUG               opt_wpi.h
  891 
  892 # dcons options 
  893 DCONS_BUF_SIZE          opt_dcons.h
  894 DCONS_POLL_HZ           opt_dcons.h
  895 DCONS_FORCE_CONSOLE     opt_dcons.h
  896 DCONS_FORCE_GDB         opt_dcons.h
  897 
  898 # HWPMC options
  899 HWPMC_DEBUG             opt_global.h
  900 HWPMC_HOOKS
  901 HWPMC_MIPS_BACKTRACE    opt_hwpmc_hooks.h
  902 
  903 # 802.11 support layer
  904 IEEE80211_DEBUG         opt_wlan.h
  905 IEEE80211_DEBUG_REFCNT  opt_wlan.h
  906 IEEE80211_SUPPORT_MESH  opt_wlan.h
  907 IEEE80211_SUPPORT_SUPERG        opt_wlan.h
  908 IEEE80211_SUPPORT_TDMA  opt_wlan.h
  909 IEEE80211_ALQ           opt_wlan.h
  910 IEEE80211_DFS_DEBUG     opt_wlan.h
  911 
  912 # 802.11 TDMA support
  913 TDMA_SLOTLEN_DEFAULT    opt_tdma.h
  914 TDMA_SLOTCNT_DEFAULT    opt_tdma.h
  915 TDMA_BINTVAL_DEFAULT    opt_tdma.h
  916 TDMA_TXRATE_11B_DEFAULT opt_tdma.h
  917 TDMA_TXRATE_11G_DEFAULT opt_tdma.h
  918 TDMA_TXRATE_11A_DEFAULT opt_tdma.h
  919 TDMA_TXRATE_TURBO_DEFAULT       opt_tdma.h
  920 TDMA_TXRATE_HALF_DEFAULT        opt_tdma.h
  921 TDMA_TXRATE_QUARTER_DEFAULT     opt_tdma.h
  922 TDMA_TXRATE_11NA_DEFAULT        opt_tdma.h
  923 TDMA_TXRATE_11NG_DEFAULT        opt_tdma.h
  924 
  925 # VideoMode
  926 PICKMODE_DEBUG                  opt_videomode.h
  927 
  928 # Network stack virtualization options
  929 VIMAGE                  opt_global.h
  930 VNET_DEBUG              opt_global.h
  931 
  932 # Common Flash Interface (CFI) options
  933 CFI_SUPPORT_STRATAFLASH opt_cfi.h
  934 CFI_ARMEDANDDANGEROUS   opt_cfi.h
  935 CFI_HARDWAREBYTESWAP    opt_cfi.h
  936 
  937 # Sound options
  938 SND_DEBUG               opt_snd.h
  939 SND_DIAGNOSTIC          opt_snd.h
  940 SND_FEEDER_MULTIFORMAT  opt_snd.h
  941 SND_FEEDER_FULL_MULTIFORMAT     opt_snd.h
  942 SND_FEEDER_RATE_HP      opt_snd.h
  943 SND_PCM_64              opt_snd.h
  944 SND_OLDSTEREO           opt_snd.h
  945 
  946 X86BIOS
  947 
  948 # Flattened device tree options
  949 FDT             opt_platform.h
  950 FDT_DTB_STATIC  opt_platform.h
  951 
  952 # OFED Infiniband stack
  953 OFED            opt_ofed.h
  954 OFED_DEBUG_INIT opt_ofed.h
  955 SDP             opt_ofed.h
  956 SDP_DEBUG       opt_ofed.h
  957 IPOIB           opt_ofed.h
  958 IPOIB_DEBUG     opt_ofed.h
  959 IPOIB_CM        opt_ofed.h
  960 
  961 # Resource Accounting
  962 RACCT           opt_global.h
  963 RACCT_DEFAULT_TO_DISABLED       opt_global.h
  964 
  965 # Resource Limits
  966 RCTL            opt_global.h
  967 
  968 # Random number generator(s)
  969 # Alternative RNG algorithm.
  970 RANDOM_FENESTRASX       opt_global.h
  971 # With this, no entropy processor is loaded, but the entropy
  972 # harvesting infrastructure is present. This means an entropy
  973 # processor may be loaded as a module.
  974 RANDOM_LOADABLE opt_global.h
  975 # This turns on high-rate and potentially expensive harvesting in
  976 # the uma slab allocator.
  977 RANDOM_ENABLE_UMA       opt_global.h
  978 RANDOM_ENABLE_ETHER     opt_global.h
  979 
  980 # This options turns TPM into entropy source.
  981 TPM_HARVEST     opt_tpm.h
  982 
  983 # BHND(4) driver
  984 BHND_LOGLEVEL   opt_global.h
  985 
  986 # GPIO and child devices
  987 GPIO_SPI_DEBUG  opt_gpio.h
  988 
  989 # SPI devices
  990 SPIGEN_LEGACY_CDEVNAME  opt_spi.h
  991 
  992 # etherswitch(4) driver
  993 RTL8366_SOFT_RESET opt_etherswitch.h
  994 
  995 # evdev protocol support
  996 EVDEV_SUPPORT   opt_evdev.h
  997 EVDEV_DEBUG     opt_evdev.h
  998 UINPUT_DEBUG    opt_evdev.h
  999 
 1000 # Hyper-V network driver
 1001 HN_DEBUG        opt_hn.h
 1002 
 1003 # CAM-based MMC stack
 1004 MMCCAM
 1005 # Encrypted kernel crash dumps
 1006 EKCD            opt_ekcd.h
 1007 
 1008 # NVME options
 1009 NVME_USE_NVD    opt_nvme.h
 1010 NVME_2X_RESET   opt_nvme.h
 1011 
 1012 # amdsbwd options
 1013 AMDSBWD_DEBUG   opt_amdsbwd.h
 1014 
 1015 # gcov support
 1016 GCOV            opt_global.h
 1017 LINDEBUGFS
 1018 
 1019 # options for HID support
 1020 HID_DEBUG       opt_hid.h
 1021 IICHID_DEBUG    opt_hid.h
 1022 IICHID_SAMPLING opt_hid.h
 1023 HKBD_DFLT_KEYMAP        opt_hkbd.h
 1024 HIDRAW_MAKE_UHID_ALIAS  opt_hid.h
 1025 
 1026 # kenv options
 1027 # The early kernel environment (loader environment, config(8)-provided static)
 1028 # is typically cleared after the dynamic environment comes up to ensure that
 1029 # we're not inadvertently holding on to 'secret' values in these stale envs.
 1030 # This option is insecure except in controlled environments where the static
 1031 # environment's contents are known to be safe.
 1032 PRESERVE_EARLY_KENV     opt_global.h

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