amd64 |
AMD64 (64-bit x86) architecture support |
arm |
32-bit ARM architecture support |
arm64 |
64-bit ARM (AArch64) architecture support |
cam |
Common Access Method storage subsystem - cam(4) and ctl(4) |
cddl |
CDDL-licensed optional sources such as DTrace |
conf |
kernel build glue |
compat |
Linux compatibility layer, FreeBSD 32-bit compatibility |
contrib |
3rd-party imported software such as OpenZFS |
crypto |
crypto drivers |
ddb |
interactive kernel debugger - ddb(4) |
fs |
most filesystems, excluding UFS, NFS, and ZFS |
dev |
device drivers |
gdb |
kernel remote GDB stub - gdb(4) |
geom |
GEOM framework - geom(4) |
i386 |
i386 (32-bit x86) architecture support |
kern |
main part of the kernel |
libkern |
libc-like and other support functions for kernel use |
modules |
kernel module infrastructure |
net |
core networking code |
net80211 |
wireless networking (IEEE 802.11) - net80211(4) |
netgraph |
graph-based networking subsystem - netgraph(4) |
netinet |
IPv4 protocol implementation - inet(4) |
netinet6 |
IPv6 protocol implementation - inet6(4) |
netipsec |
IPsec protocol implementation - ipsec(4) |
netpfil |
packet filters - ipfw(4) , pf(4) , and ipfilter(4) |
opencrypto |
OpenCrypto framework - crypto(7) |
powerpc |
PowerPC/POWER (32 and 64-bit) architecture support |
riscv |
64-bit RISC-V architecture support |
security |
security facilities - audit(4) and mac(4) |
sys |
kernel headers |
tests |
kernel unit tests |
ufs |
Unix File System - ffs(7) |
vm |
virtual memory system |
x86 |
code shared by AMD64 and i386 architectures |