1 # Standard kernel config items for all ARM64 systems.
4 makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
5 makeoptions WITH_CTF=1 # Run ctfconvert(1) for DTrace support
7 options SCHED_ULE # ULE scheduler
8 options NUMA # Non-Uniform Memory Architecture support
9 options PREEMPTION # Enable kernel thread preemption
10 options VIMAGE # Subsystem virtualization, e.g. VNET
11 options INET # InterNETworking
12 options INET6 # IPv6 communications protocols
13 options CC_CUBIC # include CUBIC congestion control
14 options IPSEC_SUPPORT # Allow kldload of ipsec and tcpmd5
15 options ROUTE_MPATH # Multipath routing support
16 options FIB_ALGO # Modular fib lookups
17 options TCP_OFFLOAD # TCP offload
18 options TCP_BLACKBOX # Enhanced TCP event logging
19 options TCP_HHOOK # hhook(9) framework for TCP
20 options TCP_RFC7413 # TCP Fast Open
21 options SCTP_SUPPORT # Allow kldload of SCTP
22 options KERN_TLS # TLS transmit & receive offload
23 options FFS # Berkeley Fast Filesystem
24 options SOFTUPDATES # Enable FFS soft updates support
25 options UFS_ACL # Support for access control lists
26 options UFS_DIRHASH # Improve performance on big directories
27 options UFS_GJOURNAL # Enable gjournal-based UFS journaling
28 options QUOTA # Enable disk quotas for UFS
29 options MD_ROOT # MD is a potential root device
30 options NFSCL # Network Filesystem Client
31 options NFSD # Network Filesystem Server
32 options NFSLOCKD # Network Lock Manager
33 options NFS_ROOT # NFS usable as /, requires NFSCL
34 options MSDOSFS # MSDOS Filesystem
35 options CD9660 # ISO 9660 Filesystem
36 options PROCFS # Process filesystem (requires PSEUDOFS)
37 options PSEUDOFS # Pseudo-filesystem framework
38 options TMPFS # Efficient memory filesystem
39 options GEOM_RAID # Soft RAID functionality.
40 options GEOM_LABEL # Provides labelization
41 options EFIRT # EFI Runtime Services support
42 options COMPAT_FREEBSD32 # Compatible with FreeBSD/arm
43 options COMPAT_FREEBSD11 # Compatible with FreeBSD11
44 options COMPAT_FREEBSD12 # Compatible with FreeBSD12
45 options COMPAT_FREEBSD13 # Compatible with FreeBSD13
46 options COMPAT_FREEBSD14 # Compatible with FreeBSD14
47 options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
48 options KTRACE # ktrace(1) support
49 options STACK # stack(9) support
50 options SYSVSHM # SYSV-style shared memory
51 options SYSVMSG # SYSV-style message queues
52 options SYSVSEM # SYSV-style semaphores
53 options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
54 options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed.
55 options KBD_INSTALL_CDEV # install a CDEV entry in /dev
56 options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4)
57 options AUDIT # Security event auditing
58 options CAPABILITY_MODE # Capsicum capability mode
59 options CAPABILITIES # Capsicum capabilities
60 options MAC # TrustedBSD MAC Framework
61 options KDTRACE_FRAME # Ensure frames are compiled in
62 options KDTRACE_HOOKS # Kernel DTrace hooks
63 options DDB_CTF # Kernel ELF linker loads CTF data
64 options INCLUDE_CONFIG_FILE # Include this file in kernel
65 options VFP # Floating-point support
66 options RACCT # Resource accounting framework
67 options RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default
68 options RCTL # Resource limits
69 options LINUX_BOOT_ABI # Boot using booti command from U-Boot
70 options PERTHREAD_SSP # Per-thread SSP canary
72 # Debugging support. Always need this:
73 options KDB # Enable kernel debugger support.
74 options KDB_TRACE # Print a stack trace for a panic.
75 # For full debugger support use (turn off in stable branch):
76 options DDB # Support DDB.
77 options GDB # Support remote GDB.
78 options DEADLKRES # Enable the deadlock resolver
79 options INVARIANTS # Enable calls of extra sanity checking
80 options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS
81 options WITNESS # Enable checks to detect deadlocks and cycles
82 options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed
83 options MALLOC_DEBUG_MAXZONES=8 # Separate malloc(9) zones
84 options ALT_BREAK_TO_DEBUGGER # Enter debugger on keyboard escape sequence
85 options VERBOSE_SYSINIT=0 # Support debug.verbose_sysinit, off by default
88 #options COVERAGE # Generic kernel coverage. Used by KCOV
89 #options KCOV # Kernel Coverage Sanitizer
90 # Warning: KUBSAN can result in a kernel too large for loader to load
91 #options KUBSAN # Kernel Undefined Behavior Sanitizer
92 #options KCSAN # Kernel Concurrency Sanitizer
94 # Kernel dump features.
95 options EKCD # Support for encrypted kernel dumps
96 options GZIO # gzip-compressed kernel and user dumps
97 options ZSTDIO # zstd-compressed kernel and user dumps
98 options DEBUGNET # debugnet networking
99 options NETDUMP # netdump(4) client support
101 # Make an SMP-capable kernel by default
102 options SMP # Symmetric MultiProcessor Kernel
104 # Enable support for the kernel PLL to use an external PPS signal,
105 # under supervision of [x]ntpd(8)
106 # More info in ntpd documentation: http://www.eecis.udel.edu/~ntp