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: releng/6.2/sys/conf/options 164286 2006-11-14 20:42:41Z cvs2svn $
    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 affect 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 AHC_ALLOW_MEMIO         opt_aic7xxx.h
   35 AHC_TMODE_ENABLE        opt_aic7xxx.h
   36 AHC_DUMP_EEPROM         opt_aic7xxx.h
   37 AHC_DEBUG               opt_aic7xxx.h
   38 AHC_DEBUG_OPTS          opt_aic7xxx.h
   39 AHC_REG_PRETTY_PRINT    opt_aic7xxx.h
   40 AHD_DEBUG               opt_aic79xx.h
   41 AHD_DEBUG_OPTS          opt_aic79xx.h
   42 AHD_TMODE_ENABLE        opt_aic79xx.h   
   43 AHD_REG_PRETTY_PRINT    opt_aic79xx.h
   44 ADW_ALLOW_MEMIO         opt_adw.h
   45 
   46 TWA_DEBUG               opt_twa.h
   47 TWA_FLASH_FIRMWARE      opt_twa.h
   48 
   49 # Debugging options.
   50 DDB
   51 DDB_NUMSYM      opt_ddb.h
   52 GDB
   53 GDBSPEED        opt_gdb.h
   54 KDB             opt_global.h
   55 KDB_TRACE       opt_kdb.h
   56 KDB_UNATTENDED  opt_kdb.h
   57 SYSCTL_DEBUG    opt_sysctl.h
   58 
   59 NO_SYSCTL_DESCR opt_global.h
   60 
   61 # Miscellaneous options.
   62 ADAPTIVE_GIANT  opt_adaptive_mutexes.h
   63 NO_ADAPTIVE_MUTEXES     opt_adaptive_mutexes.h
   64 ALQ
   65 AUDIT           opt_global.h
   66 CODA_COMPAT_5   opt_coda.h
   67 COMPAT_43       opt_compat.h
   68 COMPAT_FREEBSD4 opt_compat.h
   69 COMPAT_FREEBSD5 opt_compat.h
   70 COMPILING_LINT  opt_global.h
   71 CONSPEED        opt_comconsole.h
   72 CY_PCI_FASTINTR
   73 DIRECTIO        opt_directio.h
   74 FULL_PREEMPTION opt_sched.h
   75 PREEMPTION      opt_sched.h
   76 IPI_PREEMPTION  opt_sched.h
   77 GEOM_AES        opt_geom.h
   78 GEOM_APPLE      opt_geom.h
   79 GEOM_BDE        opt_geom.h
   80 GEOM_BSD        opt_geom.h
   81 GEOM_CONCAT     opt_geom.h
   82 GEOM_ELI        opt_geom.h
   83 GEOM_FOX        opt_geom.h
   84 GEOM_GATE       opt_geom.h
   85 GEOM_GPT        opt_geom.h
   86 GEOM_LABEL      opt_geom.h
   87 GEOM_MBR        opt_geom.h
   88 GEOM_MIRROR     opt_geom.h
   89 GEOM_NOP        opt_geom.h
   90 GEOM_PC98       opt_geom.h
   91 GEOM_RAID3      opt_geom.h
   92 GEOM_SHSEC      opt_geom.h
   93 GEOM_STRIPE     opt_geom.h
   94 GEOM_SUNLABEL   opt_geom.h
   95 GEOM_UZIP       opt_geom.h
   96 GEOM_VOL        opt_geom.h
   97 GEOM_ZERO       opt_geom.h
   98 KSTACK_MAX_PAGES
   99 KSTACK_PAGES
  100 KTRACE
  101 KTRACE_REQUEST_POOL     opt_ktrace.h
  102 LIBICONV
  103 MAC
  104 MAC_ALWAYS_LABEL_MBUF   opt_mac.h
  105 MAC_BIBA        opt_dontuse.h
  106 MAC_BSDEXTENDED opt_dontuse.h
  107 MAC_DEBUG       opt_mac.h
  108 MAC_IFOFF       opt_dontuse.h
  109 MAC_LOMAC       opt_dontuse.h
  110 MAC_MLS         opt_dontuse.h
  111 MAC_NONE        opt_dontuse.h
  112 MAC_PARTITION   opt_dontuse.h
  113 MAC_PORTACL     opt_dontuse.h
  114 MAC_SEEOTHERUIDS        opt_dontuse.h
  115 MAC_STATIC      opt_mac.h
  116 MAC_STUB        opt_dontuse.h
  117 MAC_TEST        opt_dontuse.h
  118 MD_ROOT         opt_md.h
  119 MD_ROOT_SIZE    opt_md.h
  120 MFI_DEBUG       opt_mfi.h
  121 MPROF_BUFFERS   opt_mprof.h
  122 MPROF_HASH_SIZE opt_mprof.h
  123 MUTEX_WAKE_ALL
  124 NSWBUF_MIN      opt_swap.h
  125 PANIC_REBOOT_WAIT_TIME  opt_panic.h
  126 PPS_SYNC        opt_ntp.h
  127 PUC_FASTINTR    opt_puc.h
  128 QUOTA
  129 SCHED_4BSD      opt_sched.h
  130 SCHED_ULE       opt_sched.h
  131 SHOW_BUSYBUFS
  132 SLEEPQUEUE_PROFILING
  133 SPX_HACK
  134 SUIDDIR         opt_suiddir.h
  135 MSGMNB          opt_sysvipc.h
  136 MSGMNI          opt_sysvipc.h
  137 MSGSEG          opt_sysvipc.h
  138 MSGSSZ          opt_sysvipc.h
  139 MSGTQL          opt_sysvipc.h
  140 SEMMAP          opt_sysvipc.h
  141 SEMMNI          opt_sysvipc.h
  142 SEMMNS          opt_sysvipc.h
  143 SEMMNU          opt_sysvipc.h
  144 SEMMSL          opt_sysvipc.h
  145 SEMOPM          opt_sysvipc.h
  146 SEMUME          opt_sysvipc.h
  147 SHMALL          opt_sysvipc.h
  148 SHMMAX          opt_sysvipc.h
  149 SHMMAXPGS       opt_sysvipc.h
  150 SHMMIN          opt_sysvipc.h
  151 SHMMNI          opt_sysvipc.h
  152 SHMSEG          opt_sysvipc.h
  153 SYSVMSG         opt_sysvipc.h
  154 SYSVSEM         opt_sysvipc.h
  155 SYSVSHM         opt_sysvipc.h
  156 SW_WATCHDOG     opt_watchdog.h
  157 TURNSTILE_PROFILING
  158 TTYHOG          opt_tty.h
  159 VFS_AIO
  160 WLCACHE         opt_wavelan.h
  161 WLDEBUG         opt_wavelan.h
  162 
  163 # POSIX kernel options
  164 P1003_1B_SEMAPHORES             opt_posix.h
  165 _KPOSIX_PRIORITY_SCHEDULING     opt_posix.h
  166 
  167 # Do we want the config file compiled into the kernel?
  168 INCLUDE_CONFIG_FILE     opt_config.h
  169 
  170 # Options for static filesystems.  These should only be used at config
  171 # time, since the corresponding lkms cannot work if there are any static
  172 # dependencies.  Unusability is enforced by hiding the defines for the
  173 # options in a never-included header.
  174 CD9660          opt_dontuse.h
  175 CODA            opt_dontuse.h
  176 EXT2FS          opt_dontuse.h
  177 FDESCFS         opt_dontuse.h
  178 HPFS            opt_dontuse.h
  179 LINPROCFS       opt_dontuse.h
  180 LINSYSFS        opt_dontuse.h
  181 MSDOSFS         opt_dontuse.h
  182 NTFS            opt_dontuse.h
  183 NULLFS          opt_dontuse.h
  184 NWFS            opt_dontuse.h
  185 PORTALFS        opt_dontuse.h
  186 PROCFS          opt_dontuse.h
  187 PSEUDOFS        opt_dontuse.h
  188 REISERFS        opt_dontuse.h
  189 SMBFS           opt_dontuse.h
  190 UDF             opt_dontuse.h
  191 UMAPFS          opt_dontuse.h
  192 UNIONFS         opt_dontuse.h
  193 
  194 # Pseudofs debugging
  195 PSEUDOFS_TRACE  opt_pseudofs.h
  196 
  197 # Broken - ffs_snapshot() dependency from ufs_lookup() :-(
  198 FFS             opt_ffs_broken_fixme.h
  199 
  200 # These static filesystems have one slightly bogus static dependency in
  201 # sys/i386/i386/autoconf.c.  If any of these filesystems are
  202 # statically compiled into the kernel, code for mounting them as root
  203 # filesystems will be enabled - but look below.
  204 NFSCLIENT       opt_nfs.h
  205 NFSSERVER       opt_nfs.h
  206 
  207 # filesystems and libiconv bridge
  208 CD9660_ICONV    opt_dontuse.h
  209 MSDOSFS_ICONV   opt_dontuse.h
  210 NTFS_ICONV      opt_dontuse.h
  211 UDF_ICONV       opt_dontuse.h
  212 
  213 # If you are following the conditions in the copyright,
  214 # you can enable soft-updates which will speed up a lot of thigs
  215 # and make the system safer from crashes at the same time.
  216 # otherwise a STUB module will be compiled in.
  217 SOFTUPDATES     opt_ffs.h
  218 
  219 # On small, embedded systems, it can be useful to turn off support for
  220 # snapshots.  It saves about 30-40k for a feature that would be lightly
  221 # used, if it is used at all.
  222 NO_FFS_SNAPSHOT opt_ffs.h
  223 
  224 # Enabling this option turns on support for Access Control Lists in UFS,
  225 # which can be used to support high security configurations.  Depends on
  226 # UFS_EXTATTR.
  227 UFS_ACL         opt_ufs.h
  228 
  229 # Enabling this option turns on support for extended attributes in UFS-based
  230 # filesystems, which can be used to support high security configurations
  231 # as well as new filesystem features.
  232 UFS_EXTATTR     opt_ufs.h
  233 UFS_EXTATTR_AUTOSTART   opt_ufs.h
  234 
  235 # Enable fast hash lookups for large directories on UFS-based filesystems.
  236 UFS_DIRHASH     opt_ufs.h
  237 
  238 # The below sentence is not in English, and neither is this one.
  239 # We plan to remove the static dependences above, with a
  240 # <filesystem>_ROOT option to control if it usable as root.  This list
  241 # allows these options to be present in config files already (though
  242 # they won't make any difference yet).
  243 NFS_ROOT        opt_nfsroot.h
  244 
  245 # SMB/CIFS requester
  246 NETSMB                  opt_netsmb.h
  247 # Obsolete
  248 NETSMBCRYPTO            opt_dontuse.h
  249 
  250 # Experimental support for large MS-DOS filesystems; SEE WARNING IN "NOTES"!
  251 MSDOSFS_LARGE   opt_msdosfs.h
  252 
  253 # Options used only in subr_param.c.
  254 HZ              opt_param.h
  255 MAXFILES        opt_param.h
  256 NBUF            opt_param.h
  257 NSFBUFS         opt_param.h
  258 VM_BCACHE_SIZE_MAX      opt_param.h
  259 VM_SWZONE_SIZE_MAX      opt_param.h
  260 MAXUSERS
  261 DFLDSIZ         opt_param.h
  262 MAXDSIZ         opt_param.h
  263 MAXSSIZ         opt_param.h
  264 
  265 # Generic SCSI options.
  266 CAM_MAX_HIGHPOWER       opt_cam.h
  267 CAMDEBUG                opt_cam.h
  268 CAM_DEBUG_DELAY         opt_cam.h
  269 CAM_DEBUG_BUS           opt_cam.h
  270 CAM_DEBUG_TARGET        opt_cam.h
  271 CAM_DEBUG_LUN           opt_cam.h
  272 CAM_DEBUG_FLAGS         opt_cam.h
  273 CAM_NEW_TRAN_CODE       opt_cam.h
  274 SCSI_DELAY              opt_scsi.h
  275 SCSI_NO_SENSE_STRINGS   opt_scsi.h
  276 SCSI_NO_OP_STRINGS      opt_scsi.h
  277 
  278 # Options used only in cam/scsi/scsi_cd.c
  279 CHANGER_MIN_BUSY_SECONDS        opt_cd.h
  280 CHANGER_MAX_BUSY_SECONDS        opt_cd.h
  281 
  282 # Options used only in cam/scsi/scsi_sa.c.
  283 SA_IO_TIMEOUT           opt_sa.h
  284 SA_SPACE_TIMEOUT        opt_sa.h
  285 SA_REWIND_TIMEOUT       opt_sa.h
  286 SA_ERASE_TIMEOUT        opt_sa.h
  287 SA_1FM_AT_EOD           opt_sa.h
  288 
  289 # Options used only in cam/scsi/scsi_pt.c
  290 SCSI_PT_DEFAULT_TIMEOUT opt_pt.h
  291 
  292 # Options used only in cam/scsi/scsi_ses.c
  293 SES_ENABLE_PASSTHROUGH  opt_ses.h
  294 
  295 # Options used in dev/sym/ (Symbios SCSI driver).
  296 SYM_SETUP_LP_PROBE_MAP  opt_sym.h       #-Low Priority Probe Map (bits)
  297                                         # Allows the ncr to take precedence
  298                                         # 1 (1<<0) -> 810a, 860
  299                                         # 2 (1<<1) -> 825a, 875, 885, 895
  300                                         # 4 (1<<2) -> 895a, 896, 1510d 
  301 SYM_SETUP_SCSI_DIFF     opt_sym.h       #-HVD support for 825a, 875, 885
  302                                         # disabled:0 (default), enabled:1
  303 SYM_SETUP_PCI_PARITY    opt_sym.h       #-PCI parity checking
  304                                         # disabled:0, enabled:1 (default)
  305 SYM_SETUP_MAX_LUN       opt_sym.h       #-Number of LUNs supported
  306                                         # default:8, range:[1..64]
  307 
  308 # Options used only in pci/ncr.c
  309 SCSI_NCR_DEBUG          opt_ncr.h
  310 SCSI_NCR_MAX_SYNC       opt_ncr.h
  311 SCSI_NCR_MAX_WIDE       opt_ncr.h
  312 SCSI_NCR_MYADDR         opt_ncr.h
  313 
  314 # Options used only in dev/isp/*
  315 ISP_TARGET_MODE         opt_isp.h
  316 ISP_FW_CRASH_DUMP       opt_isp.h
  317 
  318 # Options used in the 'ata' ATA/ATAPI driver
  319 ATA_STATIC_ID           opt_ata.h
  320 ATA_NOPCI               opt_ata.h
  321 
  322 # Net stuff.
  323 ACCEPT_FILTER_DATA
  324 ACCEPT_FILTER_HTTP
  325 ALTQ                    opt_global.h
  326 ALTQ_CBQ                opt_altq.h
  327 ALTQ_RED                opt_altq.h
  328 ALTQ_RIO                opt_altq.h
  329 ALTQ_HFSC               opt_altq.h
  330 ALTQ_CDNR               opt_altq.h
  331 ALTQ_PRIQ               opt_altq.h
  332 ALTQ_NOPCC              opt_altq.h
  333 ALTQ_DEBUG              opt_altq.h
  334 BOOTP                   opt_bootp.h
  335 BOOTP_COMPAT            opt_bootp.h
  336 BOOTP_NFSROOT           opt_bootp.h
  337 BOOTP_NFSV3             opt_bootp.h
  338 BOOTP_WIRED_TO          opt_bootp.h
  339 BRIDGE                  opt_bdg.h
  340 DEVICE_POLLING
  341 DEV_ENC                 opt_enc.h
  342 DEV_PF                  opt_pf.h
  343 DEV_PFLOG               opt_pf.h
  344 DEV_PFSYNC              opt_pf.h
  345 ETHER_II                opt_ef.h
  346 ETHER_8023              opt_ef.h
  347 ETHER_8022              opt_ef.h
  348 ETHER_SNAP              opt_ef.h
  349 MROUTING                opt_mrouting.h
  350 PIM                     opt_mrouting.h
  351 INET                    opt_inet.h
  352 INET6                   opt_inet6.h
  353 IPSEC                   opt_ipsec.h
  354 IPSEC_ESP               opt_ipsec.h
  355 IPSEC_DEBUG             opt_ipsec.h
  356 IPSEC_FILTERGIF         opt_ipsec.h
  357 FAST_IPSEC              opt_ipsec.h
  358 IPDIVERT
  359 DUMMYNET                opt_ipdn.h
  360 IPFILTER                opt_ipfilter.h
  361 IPFILTER_LOG            opt_ipfilter.h
  362 IPFILTER_LOOKUP         opt_ipfilter.h
  363 IPFILTER_DEFAULT_BLOCK  opt_ipfilter.h
  364 IPFIREWALL              opt_ipfw.h
  365 IPFIREWALL_VERBOSE      opt_ipfw.h
  366 IPFIREWALL_VERBOSE_LIMIT        opt_ipfw.h
  367 IPFIREWALL_DEFAULT_TO_ACCEPT    opt_ipfw.h
  368 IPFIREWALL_FORWARD      opt_ipfw.h
  369 IPV6FIREWALL            opt_ip6fw.h
  370 IPV6FIREWALL_VERBOSE    opt_ip6fw.h
  371 IPV6FIREWALL_VERBOSE_LIMIT      opt_ip6fw.h
  372 IPV6FIREWALL_DEFAULT_TO_ACCEPT  opt_ip6fw.h
  373 IPSTEALTH
  374 IPX
  375 IPXIP                   opt_ipx.h
  376 LIBMBPOOL
  377 LIBMCHAIN
  378 LIBALIAS
  379 MBUF_STRESS_TEST        opt_mbuf_stress_test.h
  380 NCP
  381 NETATALK                opt_atalk.h
  382 NET_WITH_GIANT          opt_net.h
  383 PPP_BSDCOMP             opt_ppp.h
  384 PPP_DEFLATE             opt_ppp.h
  385 PPP_FILTER              opt_ppp.h
  386 SLIP_IFF_OPTS           opt_slip.h
  387 TCPDEBUG
  388 TCP_SIGNATURE           opt_inet.h
  389 TCP_SACK_DEBUG          opt_tcp_sack.h 
  390 TCP_DROP_SYNFIN         opt_tcp_input.h
  391 XBONEHACK
  392 
  393 # Netgraph(4). Use option NETGRAPH to enable the base netgraph code.
  394 # Each netgraph node type can be either be compiled into the kernel
  395 # or loaded dynamically. To get the former, include the corresponding
  396 # option below. Each type has its own man page, e.g. ng_async(4).
  397 NETGRAPH
  398 NETGRAPH_DEBUG          opt_netgraph.h
  399 NETGRAPH_ASYNC          opt_netgraph.h
  400 NETGRAPH_ATMLLC         opt_netgraph.h
  401 NETGRAPH_ATM_ATMPIF     opt_netgraph.h
  402 NETGRAPH_BLUETOOTH      opt_netgraph.h
  403 NETGRAPH_BLUETOOTH_BT3C opt_netgraph.h
  404 NETGRAPH_BLUETOOTH_H4   opt_netgraph.h
  405 NETGRAPH_BLUETOOTH_HCI  opt_netgraph.h
  406 NETGRAPH_BLUETOOTH_L2CAP        opt_netgraph.h
  407 NETGRAPH_BLUETOOTH_SOCKET       opt_netgraph.h
  408 NETGRAPH_BLUETOOTH_UBT  opt_netgraph.h
  409 NETGRAPH_BLUETOOTH_UBTBCMFW     opt_netgraph.h
  410 NETGRAPH_BPF            opt_netgraph.h
  411 NETGRAPH_BRIDGE         opt_netgraph.h
  412 NETGRAPH_CISCO          opt_netgraph.h
  413 NETGRAPH_DEVICE         opt_netgraph.h
  414 NETGRAPH_ECHO           opt_netgraph.h
  415 NETGRAPH_EIFACE         opt_netgraph.h
  416 NETGRAPH_ETHER          opt_netgraph.h
  417 NETGRAPH_FEC            opt_netgraph.h
  418 NETGRAPH_FRAME_RELAY    opt_netgraph.h
  419 NETGRAPH_GIF            opt_netgraph.h
  420 NETGRAPH_GIF_DEMUX      opt_netgraph.h
  421 NETGRAPH_HOLE           opt_netgraph.h
  422 NETGRAPH_IFACE          opt_netgraph.h
  423 NETGRAPH_IP_INPUT       opt_netgraph.h
  424 NETGRAPH_IPFW           opt_netgraph.h
  425 NETGRAPH_KSOCKET        opt_netgraph.h
  426 NETGRAPH_L2TP           opt_netgraph.h
  427 NETGRAPH_LMI            opt_netgraph.h
  428 # MPPC compression requires proprietary files (not included)
  429 NETGRAPH_MPPC_COMPRESSION       opt_netgraph.h
  430 NETGRAPH_MPPC_ENCRYPTION        opt_netgraph.h
  431 NETGRAPH_NAT            opt_netgraph.h
  432 NETGRAPH_NETFLOW        opt_netgraph.h
  433 NETGRAPH_ONE2MANY       opt_netgraph.h
  434 NETGRAPH_PPP            opt_netgraph.h
  435 NETGRAPH_PPPOE          opt_netgraph.h
  436 NETGRAPH_PPTPGRE        opt_netgraph.h
  437 NETGRAPH_RFC1490        opt_netgraph.h
  438 NETGRAPH_SOCKET         opt_netgraph.h
  439 NETGRAPH_SPLIT          opt_netgraph.h
  440 NETGRAPH_SPPP           opt_netgraph.h
  441 NETGRAPH_TAG            opt_netgraph.h
  442 NETGRAPH_TCPMSS         opt_netgraph.h
  443 NETGRAPH_TEE            opt_netgraph.h
  444 NETGRAPH_TTY            opt_netgraph.h
  445 NETGRAPH_UI             opt_netgraph.h
  446 NETGRAPH_VJC            opt_netgraph.h
  447 
  448 # NgATM options
  449 NGATM_ATM               opt_netgraph.h
  450 NGATM_ATMBASE           opt_netgraph.h
  451 NGATM_SSCOP             opt_netgraph.h
  452 NGATM_SSCFU             opt_netgraph.h
  453 NGATM_UNI               opt_netgraph.h
  454 NGATM_CCATM             opt_netgraph.h
  455 
  456 # DRM options
  457 DRM_DEBUG               opt_drm.h
  458 
  459 ZERO_COPY_SOCKETS       opt_zero.h
  460 TI_PRIVATE_JUMBOS       opt_ti.h
  461 TI_JUMBO_HDRSPLIT       opt_ti.h
  462 
  463 # ATM (HARP version)
  464 ATM_CORE                opt_atm.h
  465 ATM_IP                  opt_atm.h
  466 ATM_SIGPVC              opt_atm.h
  467 ATM_SPANS               opt_atm.h
  468 ATM_UNI                 opt_atm.h
  469 
  470 # XXX Conflict: # of devices vs network protocol (Native ATM).
  471 # This makes "atm.h" unusable.
  472 NATM
  473 
  474 # DPT driver debug flags
  475 DPT_MEASURE_PERFORMANCE opt_dpt.h
  476 DPT_HANDLE_TIMEOUTS     opt_dpt.h
  477 DPT_TIMEOUT_FACTOR      opt_dpt.h
  478 DPT_LOST_IRQ            opt_dpt.h
  479 DPT_RESET_HBA           opt_dpt.h
  480 
  481 # Misc debug flags.  Most of these should probably be replaced with
  482 # 'DEBUG', and then let people recompile just the interesting modules
  483 # with 'make CC="cc -DDEBUG"'.
  484 CLUSTERDEBUG            opt_debug_cluster.h
  485 DEBUG_1284              opt_ppb_1284.h
  486 VP0_DEBUG               opt_vpo.h
  487 LPT_DEBUG               opt_lpt.h
  488 PLIP_DEBUG              opt_plip.h
  489 LOCKF_DEBUG             opt_debug_lockf.h
  490 NETATALKDEBUG           opt_atalk.h
  491 SI_DEBUG                opt_debug_si.h
  492 SX_DEBUG                opt_debug_sx.h
  493 
  494 # Fb options
  495 FB_DEBUG                opt_fb.h
  496 FB_INSTALL_CDEV         opt_fb.h
  497 
  498 # ppbus related options
  499 PERIPH_1284             opt_ppb_1284.h
  500 DONTPROBE_1284          opt_ppb_1284.h
  501 
  502 # smbus related options
  503 ENABLE_ALART            opt_intpm.h
  504 
  505 # These cause changes all over the kernel
  506 BLKDEV_IOSIZE           opt_global.h
  507 BURN_BRIDGES            opt_global.h
  508 DEBUG                   opt_global.h
  509 DEBUG_LOCKS             opt_global.h
  510 DEBUG_VFS_LOCKS         opt_global.h
  511 DIAGNOSTIC              opt_global.h
  512 INVARIANT_SUPPORT       opt_global.h
  513 INVARIANTS              opt_global.h
  514 MCLSHIFT                opt_global.h
  515 MUTEX_DEBUG             opt_global.h
  516 MUTEX_NOINLINE          opt_global.h
  517 MUTEX_PROFILING         opt_global.h
  518 MSIZE                   opt_global.h
  519 REGRESSION              opt_global.h
  520 RESTARTABLE_PANICS      opt_global.h
  521 VFS_BIO_DEBUG           opt_global.h
  522 
  523 # These are VM related options
  524 VM_KMEM_SIZE            opt_vm.h
  525 VM_KMEM_SIZE_SCALE      opt_vm.h
  526 VM_KMEM_SIZE_MAX        opt_vm.h
  527 NO_SWAPPING             opt_vm.h
  528 MALLOC_MAKE_FAILURES    opt_vm.h
  529 MALLOC_PROFILE          opt_vm.h
  530 PQ_NOOPT                opt_vmpage.h
  531 PQ_NORMALCACHE          opt_vmpage.h
  532 PQ_MEDIUMCACHE          opt_vmpage.h
  533 PQ_LARGECACHE           opt_vmpage.h
  534 PQ_HUGECACHE            opt_vmpage.h
  535 PQ_CACHESIZE            opt_vmpage.h
  536 
  537 # The MemGuard replacement allocator used for tamper-after-free detection
  538 DEBUG_MEMGUARD          opt_vm.h
  539 
  540 # Standard SMP options
  541 SMP                     opt_global.h
  542 
  543 # Size of the kernel message buffer
  544 MSGBUF_SIZE             opt_msgbuf.h
  545 
  546 # NFS options
  547 NFS_MINATTRTIMO         opt_nfs.h
  548 NFS_MAXATTRTIMO         opt_nfs.h
  549 NFS_MINDIRATTRTIMO      opt_nfs.h
  550 NFS_MAXDIRATTRTIMO      opt_nfs.h
  551 NFS_GATHERDELAY         opt_nfs.h
  552 NFS_WDELAYHASHSIZ       opt_nfs.h
  553 NFS_DEBUG               opt_nfs.h
  554 
  555 # For the Bt848/Bt848A/Bt849/Bt878/Bt879 driver
  556 OVERRIDE_CARD                   opt_bktr.h
  557 OVERRIDE_TUNER                  opt_bktr.h
  558 OVERRIDE_DBX                    opt_bktr.h
  559 OVERRIDE_MSP                    opt_bktr.h
  560 BROOKTREE_SYSTEM_DEFAULT        opt_bktr.h
  561 BROOKTREE_ALLOC_PAGES           opt_bktr.h
  562 BKTR_OVERRIDE_CARD              opt_bktr.h
  563 BKTR_OVERRIDE_TUNER             opt_bktr.h
  564 BKTR_OVERRIDE_DBX               opt_bktr.h
  565 BKTR_OVERRIDE_MSP               opt_bktr.h
  566 BKTR_SYSTEM_DEFAULT             opt_bktr.h
  567 BKTR_ALLOC_PAGES                opt_bktr.h
  568 BKTR_USE_PLL                    opt_bktr.h      
  569 BKTR_GPIO_ACCESS                opt_bktr.h
  570 BKTR_NO_MSP_RESET               opt_bktr.h
  571 BKTR_430_FX_MODE                opt_bktr.h
  572 BKTR_SIS_VIA_MODE               opt_bktr.h
  573 BKTR_USE_FREEBSD_SMBUS          opt_bktr.h
  574 BKTR_NEW_MSP34XX_DRIVER         opt_bktr.h
  575 
  576 # options for serial support
  577 COM_ESP                 opt_sio.h
  578 COM_MULTIPORT           opt_sio.h
  579 BREAK_TO_DEBUGGER       opt_comconsole.h
  580 ALT_BREAK_TO_DEBUGGER   opt_comconsole.h
  581 
  582 # Options to support PPS
  583 UART_PPS_ON_CTS         opt_uart.h
  584 
  585 # options for bus/device framework
  586 BUS_DEBUG               opt_bus.h
  587 
  588 # options for USB support
  589 USB_DEBUG               opt_usb.h
  590 USBVERBOSE              opt_usb.h
  591 UKBD_DFLT_KEYMAP        opt_ukbd.h
  592 UPLCOM_INTR_INTERVAL    opt_uplcom.h
  593 UVSCOM_DEFAULT_OPKTSIZE opt_uvscom.h
  594 UVSCOM_INTR_INTERVAL    opt_uvscom.h
  595 
  596 # Embedded system options
  597 INIT_PATH               opt_init_path.h
  598 
  599 ROOTDEVNAME             opt_rootdevname.h
  600 
  601 FDC_DEBUG               opt_fdc.h
  602 PCFCLOCK_VERBOSE        opt_pcfclock.h
  603 PCFCLOCK_MAX_RETRIES    opt_pcfclock.h
  604 TDFX_LINUX              opt_dontuse.h
  605 
  606 KTR                     opt_global.h
  607 KTR_ALQ                 opt_ktr.h
  608 KTR_MASK                opt_ktr.h
  609 KTR_CPUMASK             opt_ktr.h
  610 KTR_COMPILE             opt_global.h
  611 KTR_ENTRIES             opt_global.h
  612 KTR_VERBOSE             opt_ktr.h
  613 WITNESS                 opt_global.h
  614 WITNESS_KDB             opt_witness.h
  615 WITNESS_SKIPSPIN        opt_witness.h
  616 
  617 # options for ACPI support
  618 ACPI_DEBUG              opt_acpi.h
  619 ACPI_MAX_THREADS        opt_acpi.h
  620 ACPI_NO_SEMAPHORES      opt_acpi.h
  621 ACPICA_PEDANTIC         opt_acpi.h
  622 
  623 # options for DEVFS, see sys/fs/devfs/devfs.h
  624 NDEVFSINO               opt_devfs.h
  625 NDEVFSOVERFLOW          opt_devfs.h
  626 
  627 # various 'device presence' options.
  628 DEV_BPF                 opt_bpf.h
  629 DEV_ISA                 opt_isa.h
  630 DEV_MCA                 opt_mca.h
  631 DEV_CARP                opt_carp.h
  632 DEV_SPLASH              opt_splash.h
  633 
  634 EISA_SLOTS              opt_eisa.h
  635 
  636 # ed driver
  637 ED_NO_MIIBUS            opt_ed.h
  638 ED_HPP                  opt_ed.h
  639 ED_3C503                opt_ed.h
  640 ED_SIC                  opt_ed.h
  641 
  642 # bce driver
  643 BCE_DEBUG               opt_bce.h
  644 
  645 # bge driver
  646 BGE_FAKE_AUTONEG        opt_bge.h
  647 
  648 # wi driver
  649 WI_SYMBOL_FIRMWARE      opt_wi.h
  650 
  651 SOCKBUF_DEBUG           opt_global.h
  652 
  653 # options for ubsec driver
  654 UBSEC_DEBUG             opt_ubsec.h
  655 UBSEC_RNDTEST           opt_ubsec.h
  656 UBSEC_NO_RNG            opt_ubsec.h
  657 
  658 # options for hifn driver
  659 HIFN_DEBUG              opt_hifn.h
  660 HIFN_RNDTEST            opt_hifn.h
  661 
  662 # options for safenet driver
  663 SAFE_DEBUG              opt_safe.h
  664 SAFE_NO_RNG             opt_safe.h
  665 SAFE_RNDTEST            opt_safe.h
  666 
  667 # syscons options
  668 MAXCONS                 opt_syscons.h
  669 SC_ALT_MOUSE_IMAGE      opt_syscons.h
  670 SC_CUT_SPACES2TABS      opt_syscons.h
  671 SC_CUT_SEPCHARS         opt_syscons.h
  672 SC_DEBUG_LEVEL          opt_syscons.h
  673 SC_DFLT_FONT            opt_syscons.h
  674 SC_DISABLE_KDBKEY       opt_syscons.h
  675 SC_DISABLE_REBOOT       opt_syscons.h
  676 SC_HISTORY_SIZE         opt_syscons.h
  677 SC_KERNEL_CONS_ATTR     opt_syscons.h
  678 SC_KERNEL_CONS_REV_ATTR opt_syscons.h
  679 SC_MOUSE_CHAR           opt_syscons.h
  680 SC_NO_CUTPASTE          opt_syscons.h
  681 SC_NO_FONT_LOADING      opt_syscons.h
  682 SC_NO_HISTORY           opt_syscons.h
  683 SC_NO_SUSPEND_VTYSWITCH opt_syscons.h
  684 SC_NO_SYSMOUSE          opt_syscons.h
  685 SC_NORM_ATTR            opt_syscons.h
  686 SC_NORM_REV_ATTR        opt_syscons.h
  687 SC_PIXEL_MODE           opt_syscons.h
  688 SC_RENDER_DEBUG         opt_syscons.h
  689 SC_TWOBUTTON_MOUSE      opt_syscons.h
  690 
  691 # kbd options
  692 KBD_DISABLE_KEYMAP_LOAD opt_kbd.h
  693 KBD_INSTALL_CDEV        opt_kbd.h
  694 KBD_MAXRETRY            opt_kbd.h
  695 KBD_MAXWAIT             opt_kbd.h
  696 KBD_RESETDELAY          opt_kbd.h
  697 KBDIO_DEBUG             opt_kbd.h
  698 
  699 # options for the Atheros driver
  700 ATH_DEBUG               opt_ath.h
  701 ATH_TXBUF               opt_ath.h
  702 ATH_RXBUF               opt_ath.h
  703 ATH_DIAGAPI             opt_ath.h
  704 ATH_TX99_DIAG           opt_ath.h
  705 
  706 # dcons options 
  707 DCONS_BUF_SIZE          opt_dcons.h
  708 DCONS_POLL_HZ           opt_dcons.h
  709 DCONS_FORCE_CONSOLE     opt_dcons.h
  710 DCONS_FORCE_GDB         opt_dcons.h
  711 
  712 # Static unit counts
  713 NI4BTRC                 opt_i4b.h
  714 NI4BRBCH                opt_i4b.h
  715 NI4BTEL                 opt_i4b.h
  716 NI4BIPR                 opt_i4b.h
  717 NI4BING                 opt_i4b.h
  718 NI4BISPPP               opt_i4b.h
  719 
  720 # VFS options
  721 LOOKUP_SHARED           opt_vfs.h
  722 
  723 # HWPMC options
  724 HWPMC_HOOKS
  725 
  726 # XBOX options for FreeBSD/i386, but some files are MI
  727 XBOX                    opt_xbox.h

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