1# 2# Mach Operating System 3# Copyright (c) 1986 Carnegie-Mellon University 4# Copyright 2001-2018 Apple Inc. 5# 6# All rights reserved. The CMU software License Agreement 7# specifies the terms and conditions for use and redistribution. 8# 9####################################################################### 10# 11# Master machine independent configuration file. 12# 13# Specific configuration files are created based on this and 14# the machine specific master file using the doconf script. 15# 16# Any changes to the master configuration files will affect all 17# other configuration files based upon it. 18# 19####################################################################### 20# 21# To build a configuration, execute "doconf <configuration>." 22# Configurations are specified in the "Configurations:" section 23# of the MASTER and MASTER.* files as follows: 24# 25# <configuration> = [ <attribute0> <attribute1> ... <attributeN> ] 26# 27# Lines in the MASTER and MASTER.* files are selected based on 28# the attribute selector list, found in a comment at the end of 29# the line. This is a list of attributes separated by commas. 30# The "!" operator selects the line if none of the attributes are 31# specified. 32# 33# For example: 34# 35# <foo,bar> selects a line if "foo" or "bar" are specified. 36# <!foo,bar> selects a line if neither "foo" nor "bar" is 37# specified. 38# 39# Lines with no attributes specified are selected for all 40# configurations. 41# 42####################################################################### 43# 44# SYSTEM SIZE CONFIGURATION (select exactly one) 45# 46# xlarge = extra large scale system configuration 47# large = large scale system configuration 48# medium = medium scale system configuration 49# small = small scale system configuration 50# xsmall = extra small scale system configuration 51# bsmall = special extra small scale system configuration 52# 53####################################################################### 54# 55 56options INET # # <inet> 57 58options MACH # Standard Mach features # <mach> 59options MACH_FLIPC # Fast-Local IPC # <mach_flipc> 60options LOOP # loopback support # <loop> 61options VLAN # # <vlan> 62options BOND # # <bond> 63options IF_FAKE # # <if_fake> 64options IF_HEADLESS # # <if_headless> 65options IF_REDIRECT # # <if_redirect> 66options AH_ALL_CRYPTO # AH all crypto algs # <ah_all_crypto> 67options PF # Packet Filter # <pf> 68options PF_ECN # PF use ECN marking # <pf_ecn> 69options PFLOG # PF log interface # <pflog> 70options MEASURE_BW # interface bandwidth measurement # <measure_bw> 71options DUMMYNET # dummynet support # <dummynet> 72options TRAFFIC_MGT # traffic management support # <traffic_mgt> 73options MULTICAST # Internet Protocol Class-D $ 74options TCPDEBUG # TCP debug # <tcpdebug> 75options IFNET_INPUT_SANITY_CHK # allow dlil/ifnet input sanity check # <ifnet_input_chk> 76options MULTIPATH # Multipath domain # <multipath> 77options MPTCP # Multipath TCP # <mptcp> 78options SYSV_SEM # SVID semaphores # <sysv_sem> 79options SYSV_MSG # SVID messages # <sysv_msg> 80options SYSV_SHM # SVID shared mem # <sysv_shm> 81options PSYNCH # pthread synch # <psynch> 82options FLOW_DIVERT # <flow_divert> 83options NECP # <necp> 84options CONTENT_FILTER # # <content_filter> 85options PACKET_MANGLER # # <packet_mangler> 86options REMOTE_VIF # # <remote_vif> 87options SKYWALK # # <skywalk> 88options CONFIG_NEXUS_USER_PIPE # # <config_nexus_user_pipe> 89options CONFIG_NEXUS_KERNEL_PIPE # # <config_nexus_kernel_pipe> 90options CONFIG_NEXUS_MONITOR # # <config_nexus_monitor> 91options CONFIG_NEXUS_FLOWSWITCH # # <config_nexus_flowswitch> 92options CONFIG_NEXUS_NETIF # # <config_nexus_netif> 93options CONFIG_MBUF_MCACHE # mbufs use mcache # <config_mbuf_mcache> 94options KCTL_TEST # kernel control test # <kctl_test> 95 96# secure_kernel - secure kernel from user programs 97options SECURE_KERNEL # <secure_kernel> 98 99# 100# 4.4 general kernel 101# 102options SOCKETS # socket support # <inet> 103options DIAGNOSTIC # diagnostics # <diagnostic> 104options PROFILE # kernel profiling # <profile> 105options SENDFILE # sendfile # <sendfile> 106options NETWORKING # networking layer # <inet> 107options CONFIG_FSE # file system events # <config_fse> 108options CONFIG_IMAGEBOOT # local image boot # <config_imageboot> 109options CONFIG_MBUF_JUMBO # jumbo cluster pool # <config_mbuf_jumbo> 110options CONFIG_IMAGEBOOT_IMG4 # authenticate image with AppleImage4 # <config_imageboot_img4> 111options CONFIG_IMAGEBOOT_CHUNKLIST # authenticate image with a chunk list # <config_imageboot_chunklist> 112 113options CONFIG_WORKLOOP_DEBUG # <config_workloop_debug> 114 115# 116# 4.4 filesystems 117# 118options MOCKFS # Boot from an executable # <mockfs> 119options FIFO # fifo support # <fifo> 120options FDESC # fdesc_fs support # <fdesc> 121options DEVFS # devfs support # <devfs> 122options ROUTEFS # routefs support # <routefs> 123options NULLFS # nullfs support # <nullfs> 124options BINDFS # bindfs support # <bindfs> 125options FS_COMPRESSION # fs compression # <fs_compression> 126options CONFIG_DEV_KMEM # /dev/kmem device for reading KVA # <config_dev_kmem> 127 128# 129# file system features 130# 131options QUOTA # file system quotas # <quota> 132options NAMEDSTREAMS # named stream vnop support # <namedstreams> 133options CONFIG_APPLEDOUBLE # apple double support # <config_appledouble> 134options CONFIG_VOLFS # volfs path support (legacy) # <config_volfs> 135options CONFIG_IMGSRC_ACCESS # source of imageboot dmg # <config_imgsrc_access> 136options CONFIG_TRIGGERS # trigger vnodes # <config_triggers> 137options CONFIG_EXT_RESOLVER # e.g. memberd # <config_ext_resolver> 138options CONFIG_SEARCHFS # searchfs syscall support # <config_searchfs> 139options CONFIG_MNT_SUID # allow suid binaries # <config_mnt_suid> 140options CONFIG_MNT_ROOTSNAP # allow rooting from snapshot # <config_mnt_rootsnap> 141options CONFIG_ROSV_STARTUP # allow read-only system volume startup # <config_rosv_startup> 142options CONFIG_FIRMLINKS # support "firmlinks" # <config_firmlinks> 143options CONFIG_MOUNT_VM # mount VM volume on startup # <config_mount_vm> 144options CONFIG_MOUNT_PREBOOTRECOVERY # mount Preboot and/or Recovery volume on startup # <config_mount_prebootrecovery> 145options CONFIG_DATALESS_FILES # support dataless file materialization # <config_dataless_files> 146options CONFIG_BASESYSTEMROOT # mount BaseSystem as initial root filesystem on some kinds of startup # <config_basesystemroot> 147options CONFIG_UNION_MOUNTS # support union mounts # <config_union_mounts> 148options CONFIG_FILE_LEASES # local file leasing support # <config_file_leases> 149 150# 151# VFS debugging 152# 153options CONFIG_IOCOUNT_TRACE # enable vnode's iocount tracing # <config_iocount_trace> 154 155# NFS support 156# 157options NFSSERVER # Be an NFS server # <nfsserver> 158options CONFIG_NETBOOT # network booting # <config_netboot> 159 160# 161# Machine Independent Apple Features 162# 163profile # build a profiling kernel # <profile> 164 165# 166# IPv6 Support 167# 168options IPSEC # IP security # <ipsec> 169options IPSEC_ESP # IP security # <ipsec> 170 171pseudo-device gif 1 # <gif> 172pseudo-device dummy 2 # <dummy> 173pseudo-device stf 1 # <stf> 174 175options CRYPTO # <ipsec,crypto> 176options CRYPTO_SHA2 # <crypto_sha2> 177options ENCRYPTED_SWAP # <encrypted_swap> 178 179options CONFIG_IMG4 # <config_img4> 180 181options ZLIB # inflate/deflate support # <zlib> 182options ZLIBC # inflate/deflate support # <zlibc> 183 184options IF_BRIDGE # <if_bridge> 185 186# 187# configurable kernel event related resources 188# 189options CONFIG_KN_HASHSIZE=64 # <medium,large,xlarge> 190options CONFIG_KN_HASHSIZE=48 # <small,xsmall> 191options CONFIG_KN_HASHSIZE=20 # <bsmall> 192 193# 194# configurable vfs related resources 195# CONFIG_VNODES - used to pre allocate vnode related resources 196# CONFIG_NC_HASH - name cache hash table allocation 197# CONFIG_VFS_NAMES - name strings 198# 199# 263168 magic number for medium CONFIG_VNODES is based on memory 200# Number vnodes is (memsize/64k) + 1024 201# This is the calculation that is used by launchd in tiger 202# we are clipping the max based on 16G 203# ie ((16*1024*1024*1024)/(64 *1024)) + 1024 = 263168; 204 205options CONFIG_VNODES=263168 # <large,xlarge> 206options CONFIG_VNODES=263168 # <medium> 207options CONFIG_VNODES=10240 # <small> 208options CONFIG_VNODES=750 # <bsmall> 209 210options CONFIG_NC_HASH=5120 # <large,xlarge> 211options CONFIG_NC_HASH=4096 # <medium> 212options CONFIG_NC_HASH=2048 # <small,xsmall> 213options CONFIG_NC_HASH=1024 # <bsmall> 214 215options CONFIG_VFS_NAMES=5120 # <large,xlarge> 216options CONFIG_VFS_NAMES=4096 # <medium> 217options CONFIG_VFS_NAMES=3072 # <small,xsmall> 218options CONFIG_VFS_NAMES=2048 # <bsmall> 219 220options CONFIG_MAX_CLUSTERS=8 # <xlarge,large,medium> 221options CONFIG_MAX_CLUSTERS=4 # <small,xsmall,bsmall> 222 223# 224# configurable options for minumum number of buffers for kernel memory 225# 226options CONFIG_MIN_NBUF=256 # <medium,large,xlarge> 227options CONFIG_MIN_NBUF=128 # <small> 228options CONFIG_MIN_NBUF=80 # <xsmall> 229options CONFIG_MIN_NBUF=64 # <bsmall> 230 231options CONFIG_MIN_NIOBUF=128 # <medium,large,xlarge> 232options CONFIG_MIN_NIOBUF=64 # <xsmall,small> 233options CONFIG_MIN_NIOBUF=32 # <bsmall> 234 235# 236# set maximum space used for packet buffers 237# 238options CONFIG_NMBCLUSTERS="((1024 * 1024) / MCLBYTES)" # <large,xlarge> 239options CONFIG_NMBCLUSTERS="((1024 * 512) / MCLBYTES)" # <medium> 240options CONFIG_NMBCLUSTERS="((1024 * 256) / MCLBYTES)" # <bsmall,xsmall,small> 241 242# 243# Configure size of TCP hash table 244# 245options CONFIG_TCBHASHSIZE=4096 # <medium,large,xlarge> 246options CONFIG_TCBHASHSIZE=128 # <xsmall,small,bsmall> 247 248# 249# configurable async IO options 250# CONFIG_AIO_MAX - system wide limit of async IO requests. 251# CONFIG_AIO_PROCESS_MAX - process limit of async IO requests. 252# CONFIG_AIO_THREAD_COUNT - number of async IO worker threads created. 253# 254options CONFIG_AIO_MAX=360 # <xlarge> 255options CONFIG_AIO_MAX=180 # <large> 256options CONFIG_AIO_MAX=90 # <medium> 257options CONFIG_AIO_MAX=45 # <small> 258options CONFIG_AIO_MAX=20 # <xsmall> 259options CONFIG_AIO_MAX=10 # <bsmall> 260 261options CONFIG_AIO_PROCESS_MAX=64 # <xlarge> 262options CONFIG_AIO_PROCESS_MAX=32 # <large> 263options CONFIG_AIO_PROCESS_MAX=16 # <medium> 264options CONFIG_AIO_PROCESS_MAX=12 # <small> 265options CONFIG_AIO_PROCESS_MAX=8 # <xsmall> 266options CONFIG_AIO_PROCESS_MAX=4 # <bsmall> 267 268options CONFIG_AIO_THREAD_COUNT=16 # <xlarge> 269options CONFIG_AIO_THREAD_COUNT=8 # <large> 270options CONFIG_AIO_THREAD_COUNT=4 # <medium> 271options CONFIG_AIO_THREAD_COUNT=3 # <small> 272options CONFIG_AIO_THREAD_COUNT=2 # <xsmall,bsmall> 273 274options CONFIG_MAXVIFS=32 # <medium,large,xlarge> 275options CONFIG_MAXVIFS=16 # <small,xsmall> 276options CONFIG_MAXVIFS=2 # <bsmall> 277 278options CONFIG_MFCTBLSIZ=256 # <medium,large,xlarge> 279options CONFIG_MFCTBLSIZ=128 # <small,xsmall> 280options CONFIG_MFCTBLSIZ=16 # <bsmall> 281 282# 283# configurable kernel message buffer size 284# 285options CONFIG_MSG_BSIZE_REL=16384 # <msgb_small> 286options CONFIG_MSG_BSIZE_DEV=131072 # <msgb_small> 287options CONFIG_MSG_BSIZE_REL=131072 # <msgb_large> 288options CONFIG_MSG_BSIZE_DEV=131072 # <msgb_large> 289options CONFIG_MSG_BSIZE=CONFIG_MSG_BSIZE_REL # <!development,debug> 290options CONFIG_MSG_BSIZE=CONFIG_MSG_BSIZE_DEV # <development,debug> 291 292# 293# maximum size of the per-process Mach IPC table 294# 295options CONFIG_IPC_TABLE_ENTRIES_SIZE_MAX=3145728 # 3M == 131072 entries # <bsmall,small,xsmall> 296options CONFIG_IPC_TABLE_ENTRIES_SIZE_MAX=7340032 # 7M == 305834 entries # <medium,large,xlarge> 297options CONFIG_IPC_TABLE_REQUEST_SIZE_MAX=1048576 # 1M == 65536 requests # <bsmall,small,xsmall> 298options CONFIG_IPC_TABLE_REQUEST_SIZE_MAX=2097152 # 2M == 131072 requests # <medium,large,xlarge> 299 300# 301# maximum copyout size for IPC debugging tools 302# 303options CONFIG_IPC_KERNEL_MAP_SIZE=32 # 32M # <bsmall,small,xsmall> 304options CONFIG_IPC_KERNEL_MAP_SIZE=64 # 64M # <medium,large,xlarge> 305 306# 307# configurable kernel - use these options to strip strings from panic 308# and printf calls. 309# no_printf_str - saves around 45K of kernel footprint. 310# 311options CONFIG_NO_PRINTF_STRINGS # <no_printf_str> 312options CONFIG_NO_KPRINTF_STRINGS # <no_kprintf_str> 313 314# support vsprintf (deprecated in favor of vsnprintf) 315options CONFIG_VSPRINTF # <vsprintf> 316 317# 318# configurable kernel - general switch to say we are building for an 319# embedded device 320# 321options CONFIG_EMBEDDED # <config_embedded> 322 323 324# Compile XNU with PPL support. 325options CONFIG_PMAP_PPL # <config_pmap_ppl> 326 327options NOS_ARM_ASM # <nos_arm_asm> 328options NOS_ARM_PMAP # <nos_arm_pmap> 329 330# support dynamic signing of code 331# 332options CONFIG_DYNAMIC_CODE_SIGNING # <dynamic_codesigning> 333 334# enforce library validation on all processes. 335# 336options CONFIG_ENFORCE_LIBRARY_VALIDATION # <config_library_validation> 337 338# support loading a second static trust cache 339# 340options CONFIG_SECOND_STATIC_TRUST_CACHE # <second_static_trust_cache> 341 342# support supplemental signatures 343# 344options CONFIG_SUPPLEMENTAL_SIGNATURES # <config_supplemental_signatures> 345 346# 347# code decryption... used on embedded for app protection, DSMOS on desktop 348# 349options CONFIG_CODE_DECRYPTION # <config_code_decryption> 350 351# 352# User Content Protection, used on embedded 353# 354options CONFIG_PROTECT # <config_protect> 355 356#allow write-protection of key page 357options CONFIG_KEYPAGE_WP # <config_keypage_wp> 358 359# 360# allow vm_pageout_scan to dynamically adjust its priority based on priorities of waiters 361# 362options CONFIG_VPS_DYNAMIC_PRIO # <vps_dynamic_prio> 363 364# 365# enable per-process memory priority tracking 366# 367options CONFIG_MEMORYSTATUS # <memorystatus> 368 369options CONFIG_DEFERRED_RECLAIM # <config_deferred_reclaim> 370 371# 372# enable jetsam - used on embedded 373# 374options CONFIG_JETSAM # <jetsam> 375 376# 377# enable new wait queue implementation stats / debugging 378# 379options CONFIG_WAITQ_STATS # <config_waitq_stats> 380 381# 382# enable freezing of suspended processes - used on embedded 383# 384options CONFIG_FREEZE # <freeze> 385 386options CHECK_CS_VALIDATION_BITMAP # <config_cs_validation_bitmap> 387 388# 389# enable physical writes accounting 390# 391options CONFIG_PHYS_WRITE_ACCT # <phys_write_acct> 392 393# 394# enable detection of file cache thrashing - used on platforms with 395# dynamic VM compression enabled 396# 397options CONFIG_PHANTOM_CACHE # <phantom_cache> 398 399# 400# enable detection of anonymous pages staying unmodified after first use 401# - used on platforms with dynamic VM compression enabled 402# 403options CONFIG_TRACK_UNMODIFIED_ANON_PAGES # <track_unmodified_anon_pages> 404 405# 406# memory pressure event support 407# 408options VM_PRESSURE_EVENTS # <vm_pressure_events> 409 410options CONFIG_SECLUDED_MEMORY # <config_secluded_memory> 411 412# 413# Ledger features 414# 415options CONFIG_LEDGER_INTERVAL_MAX # <config_ledger_interval_max> 416 417# 418# I/O Scheduling 419# 420options CONFIG_IOSCHED # <config_iosched> 421 422# 423# Accounting for I/O usage 424# 425options CONFIG_IO_ACCOUNTING # <config_io_accounting> 426 427# 428# Enable inheritance of importance through specially marked mach ports and for file locks 429# For now debug is enabled wherever inheritance is 430# 431options IMPORTANCE_INHERITANCE # <importance_inheritance> 432options IMPORTANCE_TRACE # <importance_trace> 433options IMPORTANCE_DEBUG # <importance_debug> 434 435options CONFIG_TELEMETRY # <config_telemetry> 436 437options CONFIG_PROC_UUID_POLICY # <config_proc_uuid_policy> 438 439# 440# ECC data logging 441# 442options CONFIG_ECC_LOGGING # <config_ecc_logging> 443 444# 445# Application core dumps 446# 447options CONFIG_COREDUMP # <config_coredump> 448 449# 450# Vnode guards 451# 452options CONFIG_VNGUARD # <config_vnguard> 453 454# 455# Paravirtualization 456# 457options CONFIG_PV_TICKET # <config_pv_ticket> 458 459# 460# Enable extended VM address space and user heap segregation 461# 462options CONFIG_MAP_RANGES # <config_map_ranges> 463 464# 465# Ethernet (ARP) 466# 467pseudo-device ether # <networking,inet> 468# 469# Network loopback device 470# 471pseudo-device loop # <networking,inet> 472# 473# UCB pseudo terminal service 474# 475pseudo-device pty 512 init pty_init # <xlarge> 476pseudo-device pty 256 init pty_init # <large> 477pseudo-device pty 128 init pty_init # <medium> 478pseudo-device pty 48 init pty_init # <small> 479pseudo-device pty 16 init pty_init # <xsmall> 480pseudo-device pty 8 init pty_init # <bsmall> 481# 482# Cloning pseudo terminal service 483# 484pseudo-device ptmx 1 init ptmx_init 485 486# 487# memory device 488pseudo-device mdevdevice 1 init mdevinit 489 490# 491# 492# packet filter device 493# 494pseudo-device bpfilter 4 init bpf_init # <networking,inet> 495 496# 497# fsevents device 498pseudo-device fsevents 1 init fsevents_init # <config_fse> 499 500pseudo-device random 1 init random_init 501pseudo-device dtrace 1 init dtrace_init # <config_dtrace> 502pseudo-device helper 1 init helper_init # <config_dtrace> 503pseudo-device lockstat 1 init lockstat_init # <config_dtrace> 504pseudo-device lockprof 1 init lockprof_init # <config_dtrace> 505pseudo-device sdt 1 init sdt_init # <config_dtrace> 506pseudo-device systrace 1 init systrace_init # <config_dtrace> 507pseudo-device fbt 1 init fbt_init # <config_dtrace> 508pseudo-device profile_prvd 1 init profile_init # <config_dtrace> 509 510 511pseudo-device perfmon 1 init perfmon_dev_init # <config_perfmon> 512 513# 514# IOKit configuration options 515# 516 517options HIBERNATION # system hibernation # <hibernation> 518options IOKITCPP # C++ implementation # <iokitcpp> 519options IOKITSTATS # IOKit statistics # <iokitstats> 520options IOTRACKING # IOKit tracking # <iotracking> 521options CONFIG_SLEEP # # <config_sleep> 522options CONFIG_MAX_THREADS=500 # IOConfigThread threads 523options NO_KEXTD # <no_kextd> 524options NO_KERNEL_HID # <no_kernel_hid> 525 526# 527# Libkern configuration options 528# 529 530options LIBKERNCPP # C++ implementation # <libkerncpp> 531options CONFIG_BLOCKS # Blocks runtime # <config_blocks> 532options CONFIG_KXLD # kxld/runtime linking of kexts # <config_kxld> 533options CONFIG_KEC_FIPS # Kernel External Components for FIPS compliance (KEC_FIPS) # <config_kec_fips> 534 535# Note that when adding this config option to an architecture, one MUST 536# add the architecture to the preprocessor test at the beginning of 537# libkern/kmod/cplus_{start.c,stop.c}. 538options CONFIG_STATIC_CPPINIT # Static library initializes kext cpp runtime # <config_static_cppinit> 539 540# 541# libsa configuration options 542# 543 544# CONFIG_KEXT_BASEMENT - alloc post boot loaded kexts after prelinked kexts 545# 546options CONFIG_KEXT_BASEMENT # # <config_kext_basement> 547 548# 549# Persona Management 550# 551options CONFIG_PERSONAS # Persona management # <config_personas> 552options PERSONA_DEBUG # Persona debugging # <persona_debug> 553 554# 555# security configuration options 556# 557 558options CONFIG_MACF # Mandatory Access Control Framework # <config_macf> 559options CONFIG_MACF_SOCKET_SUBSET # MAC socket subest (no labels) # <config_macf> 560#options CONFIG_MACF_DEBUG # debug # <config_macf> 561 562options CONFIG_AUDIT # Kernel auditing # <config_audit> 563 564options CONFIG_ARCADE # Arcade validation support # <config_arcade> 565 566options CONFIG_SETUID # setuid/setgid support # <config_setuid> 567 568options CONFIG_SECURE_BSD_ROOT # secure BSD root # <config_secure_bsd_root> 569 570options CONFIG_KAS_INFO # kas_info support # <config_kas_info> 571 572options CONFIG_PROC_RESOURCE_LIMITS # Per process limits for resources like file descriptors and mach ports # <config_proc_resource_limits> 573 574# 575# MACH configuration options. 576# 577 578# 579# This defines configuration options that are normally used only during 580# kernel code development and debugging. They add run-time error checks or 581# statistics gathering, which will slow down the system 582# 583########################################################## 584# 585# MACH_ASSERT controls the assert() and ASSERT() macros, used to verify the 586# consistency of various algorithms in the kernel. The performance impact 587# of this option is significant. 588# 589options MACH_ASSERT # # <mach_assert> 590options MACH_VM_DEBUG # # <debug> 591options CONFIG_ZLEAKS # Live zone leak debugging # <zleaks> 592options CONFIG_VOUCHER_DEPRECATED # Enable deprecated voucher managers # <config_voucher_deprecated> 593 594# 595# CONFIG_DEBUGGER_FOR_ZONE_INFO restricts zone info so that it is only 596# available when the kernel is being debugged. 597# 598options CONFIG_DEBUGGER_FOR_ZONE_INFO # <debugger_for_zone_info> 599# 600# MACH_LDEBUG controls the internal consistency checks and 601# data gathering in the locking package. This also enables a debug-only 602# version of simple-locks on uniprocessor machines. The code size and 603# performance impact of this option is significant. 604# 605options MACH_LDEBUG # # <debug> 606 607# 608# configuration option for full, partial, or no kernel debug event tracing 609# 610options KDEBUG # kernel tracing # <kdebug> 611options IST_KDEBUG # limited tracing # <ist_kdebug> 612options NO_KDEBUG # no kernel tracing # <no_kdebug> 613 614# 615# CONFIG_DTRACE enables code needed to support DTrace. Currently this is 616# only used for delivery of traps/interrupts to DTrace. 617# 618options CONFIG_DTRACE # # <config_dtrace> 619 620options LOCK_STATS # # <lock_stats> 621 622# kernel performance tracing 623options KPERF # <kperf> 624options KPC # <kpc> 625 626 627options CONFIG_PERVASIVE_CPI # <config_pervasive_cpi> 628options CONFIG_PERVASIVE_ENERGY # <config_pervasive_energy> 629 630options CONFIG_IOTRACE # Physical IO tracing # <config_iotrace> 631 632# 633# CONFIG_PERFMON enables code to interface with performance monitoring hardware, 634# which count hardware events like cache misses and branch mispredicts. 635# 636options CONFIG_PERFMON # <config_perfmon> 637 638options PGO # <pgo> 639 640# DEVELOPMENT define for development builds 641options DEVELOPMENT # dev kernel # <development> 642 643# DEBUG kernel 644options DEBUG # general debugging code # <debug> 645options CONFIG_NONFATAL_ASSERTS # non fatal asserts # <softasserts> 646 647options MACH_BSD # BSD subsystem on top of Mach # <mach_bsd> 648options IOKIT # # <iokit> 649 650# 651# configurable kernel related resources (CONFIG_THREAD_MAX needs to stay in 652# sync with bsd/conf/MASTER until we fix the config system... todo XXX 653# 654options CONFIG_THREAD_MAX=2560 # <medium,large,xlarge> 655options CONFIG_THREAD_MAX=1536 # <small,xsmall> 656options CONFIG_THREAD_MAX=1024 # <bsmall> 657 658options CONFIG_TASK_MAX=1024 # <medium,large,xlarge> 659options CONFIG_TASK_MAX=768 # <small,> 660options CONFIG_TASK_MAX=512 # <xsmall,bsmall> 661 662# 663# Minimum zone map size: 115 MB 664# 665options CONFIG_ZONE_MAP_MIN=120586240 # <xsmall,bsmall,small,medium,large,xlarge> 666 667# vc_progress_white - make the progress gear white instead of black 668options CONFIG_VC_PROGRESS_WHITE # <vc_progress_white> 669 670# 671# Timeshare scheduler implementations 672# 673options CONFIG_SCHED_TRADITIONAL # <config_sched_traditional> 674options CONFIG_SCHED_PROTO # <config_sched_proto> 675options CONFIG_SCHED_GRRR # <config_sched_grrr> 676options CONFIG_SCHED_GRRR_CORE # <config_sched_grrr> 677options CONFIG_SCHED_MULTIQ # <config_sched_multiq> 678options CONFIG_SCHED_TIMESHARE_CORE # <config_sched_traditional,config_sched_multiq> 679options CONFIG_CLUTCH # <config_clutch> 680options CONFIG_SCHED_AUTO_JOIN # <config_sched_auto_join> 681options CONFIG_SCHED_RT_ALLOW # <config_sched_rt_allow> 682 683options CONFIG_SCHED_IDLE_IN_PLACE # <config_sched_idle_in_place> 684options CONFIG_SCHED_SFI # <config_sched_sfi> 685options CONFIG_PROB_GZALLOC # <pgzalloc> 686options CONFIG_SCHED_DEFERRED_AST # <config_sched_deferred_ast> 687 688options CONFIG_PREADOPT_TG # <config_preadopt_tg> 689options CONFIG_PREADOPT_TG_DEBUG # <config_preadopt_tg_debug> 690 691# Enable allocation of contiguous physical memory through vm_map_enter_cpm() 692options VM_CPM # <vm_cpm> 693 694# This is overridden by the board configuration's HAS_FAST_CNTVCT. 695options CONFIG_SKIP_PRECISE_USER_KERNEL_TIME # <config_skip_precise_user_kernel_time> 696 697# 698# Switch to disable cpu, wakeup and high memory watermark monitors 699# 700options CONFIG_NOMONITORS # <config_nomonitors> 701 702options MACH_KDP # KDP # <mach_kdp> 703options CONFIG_SERIAL_KDP # KDP over serial # <config_serial_kdp> 704options CONFIG_KDP_INTERACTIVE_DEBUGGING # <kdp_interactive_debugging> 705options CONFIG_KDP_COREDUMP_ENCRYPTION # Support for encrypting kernel coredumps # <config_kdp_coredump_encryption> 706 707options CONFIG_TASKWATCH 708options CONFIG_USER_NOTIFICATION # <config_user_notification> 709# 710# Kernel Power On Self Tests 711# 712options CONFIG_XNUPOST # <config_xnupost> 713 714# 715# Kernel proc reference instrumentation 716# 717options PROC_REF_DEBUG # <proc_ref_debug> 718 719# 720# Kernel Voucher Attr Manager for Activity Trace 721# 722options CONFIG_ATM # <config_atm> 723 724# Group related tasks together into coalitions 725options CONFIG_COALITIONS # <config_coalitions> 726 727# Enable support for sysdiagnose notifications 728options CONFIG_SYSDIAGNOSE # <config_sysdiagnose> 729 730# Configurable Security Restrictions 731options CONFIG_CSR # <config_csr> 732options CONFIG_CSR_FROM_DT # <config_csr_from_dt> 733 734# Enable collection of IO Compression statistics 735options CONFIG_IO_COMPRESSION_STATS # <config_io_compression_stats> 736 737# 738# Console options 739# 740options SERIAL_CONSOLE # bi-directional serial over UART 741options VIDEO_CONSOLE # uni-directional output over framebuffer 742 743# 744# Syscall options 745# 746options CONFIG_REQUIRES_U32_MUNGING # incoming U32 argument structures must be munged to match U64 # <config_requires_u32_munging> 747 748# 749# copyout() instrumentation 750# 751options COPYOUT_SHIM # Shim for copyout memory analysis via kext #<copyout_shim> 752 753# 754# Enable hardware correlation of mach absolute time 755# across intel/arm boundary 756options CONFIG_MACH_BRIDGE_SEND_TIME # # <config_mach_bridge_send_time> 757options CONFIG_MACH_BRIDGE_RECV_TIME # # <config_mach_bridge_recv_time> 758 759options CONFIG_QUIESCE_COUNTER # Support for _COMM_PAGE_CPU_QUIESCENT_COUNTER # <config_quiesce_counter> 760options CONFIG_ARM_PFZ # Support for PFZ on ARM # <config_arm_pfz> 761 762# 763# Sanitizers 764# 765options CONFIG_KASAN # <config_kasan> 766options CONFIG_UBSAN # <config_ubsan> 767 768options CONFIG_KCOV # <config_kcov> 769options CONFIG_KSANCOV # <config_ksancov> 770options CONFIG_STKSZ # <config_stksz> 771 772# dark boot support 773options CONFIG_DARKBOOT # <config_darkboot> 774 775# support for tracking service port labels for stackshots/debugging 776options CONFIG_SERVICE_PORT_INFO # <config_service_port_info> 777 778# support for processes delaying idle sleep for pending IO 779options CONFIG_DELAY_IDLE_SLEEP # <config_delay_idle_sleep> 780 781# support for storing a 64-bit user supplied value in the proc structure 782options CONFIG_PROC_UDATA_STORAGE # <config_proc_udata_storage> 783 784pseudo-device ksancov 1 init ksancov_init_dev # <config_ksancov> 785 786# Debug instrumentation for statistics and catching of code that 787# leaves interrupts masked or preemption disabled for an excessive 788# period of time. 789options SCHED_HYGIENE_DEBUG # <sched_hygiene_debug> 790 791# support for system call rejection/tracing 792options CONFIG_DEBUG_SYSCALL_REJECTION # <config_debug_syscall_rejection> 793 794# Extensible panic log support 795options CONFIG_EXT_PANICLOG # <config_ext_paniclog> 796 797# support for collecting statistics on task suspension 798options CONFIG_TASK_SUSPEND_STATS # <config_task_suspend_stats> 799