opnsense-src/sys
Bjoern A. Zeeb 4ad47b697b LinuxKPI: add supporting #includes
Compiling drm-kmod on !X86 does not include asm/smp.h which includes
preempt.h on FreeBSD.  In order to compile drm-kmod on other
architectures add the secondary #includes for preempt.h to
spinlock.h and hardirq.h (which now also gets included from highmem.h)
to connect the #include chain.

Sponsored by:	The FreeBSD Foundation
PR:		279864
Reviewed by:	jhibbits, emaste
Differential Revision: https://reviews.freebsd.org/D55974

(cherry picked from commit 1d18872c2519d7ca726ddc49735180ab1d8916e0)
(cherry picked from commit 29dce45d8c50ea5858dc91a4294e83b8d72a2f80)
2026-04-08 15:25:05 +02:00
..
amd64 amd64/conf: Remove a config committed by accident 2026-02-24 19:22:13 +01:00
arm Avoid waiting on physical allocations that can't possibly be satisfied 2025-10-23 08:18:48 +02:00
arm64 arm64: Correctly align the SVE signal context 2026-01-28 07:36:19 +01:00
bsm New setcred() system call and associated MAC hooks 2025-04-03 21:31:03 +02:00
cam Internal scheduling priorities: Always use symbolic ones 2025-07-31 12:42:21 +02:00
cddl dtrace/arm64: Fix dtrace_gethrtime() 2025-04-02 15:14:37 +00:00
compat LinuxKPI: add supporting #includes 2026-04-08 15:25:05 +02:00
conf Add UPDATING entries and bump version 2026-03-26 08:04:53 +01:00
contrib qat: enable qat driver for 402xx device 2026-01-20 09:05:29 +01:00
crypto crypto: avoid warnings about too-long initializer strings 2026-01-10 08:57:55 +01:00
ddb
dev e1000: Increase FC pause/refresh time on PCH2 and newer 2026-03-09 09:15:10 +01:00
dts
fs file: Add a fd flag with O_RESOLVE_BENEATH semantics 2026-02-24 19:22:09 +01:00
gdb
geom sysctl(9): Ease exporting struct sizes; Discourage doing that 2025-05-13 14:41:33 +02:00
gnu
i386 i386: Avoid registering overlapping vm_phys_seg entries 2025-04-15 02:25:24 +00:00
isa isa: Use a bus_child_deleted method to free ivars for children 2024-11-30 21:46:06 -05:00
kern unix: Set O_RESOLVE_BENEATH on fds transferred between jails 2026-02-24 19:22:11 +01:00
kgssapi
libkern libkern: strdup.c, strndup.c: Prefer memcpy() over bcopy() 2025-03-03 22:56:34 +08:00
modules qat: enable qat driver for 402xx device 2026-01-20 09:05:29 +01:00
net if_types: Fix a typo in a source code comment 2026-04-08 15:24:26 +02:00
net80211 net80211: fix VHT160/80P80/80 chanwidth selection in the "40-" case 2026-04-08 15:24:45 +02:00
netgraph Internal scheduling priorities: Always use symbolic ones 2025-07-31 12:42:21 +02:00
netinet tcp: plug an mbuf leak 2026-03-26 08:04:46 +01:00
netinet6 icmp6: clear csum_flags on mbuf reuse 2026-02-24 10:11:30 +01:00
netipsec netipsec: Use proper prototype for SYSINIT functions 2026-02-18 13:12:52 +01:00
netlink netlink: Don't directly access ifnet members 2026-01-10 09:00:31 +01:00
netpfil pf: include all elements when hashing rules 2026-03-26 08:04:52 +01:00
netsmb kern: adopt the cr_gid macro for cr_groups[0] more widely 2026-01-20 08:27:09 +01:00
nfs
nfsclient
nfsserver
nlm
ofed ibcore: Mark write-only variables 2024-07-15 12:28:53 +00:00
opencrypto ktls: Remove the socket parameter to ktls_ocf_try() 2024-07-23 09:01:30 -04:00
powerpc powerpc: Always use BE tag in nexus_map_resource 2025-05-15 09:06:51 -04:00
riscv riscv: Fix handling of interrupts during kernel page faults 2025-04-29 00:44:01 +00:00
rpc rpcsec_gss: Fix a stack overflow in svc_rpc_gss_validate() 2026-03-26 08:04:47 +01:00
security kern: adopt the cr_gid macro for cr_groups[0] more widely 2026-01-20 08:27:09 +01:00
sys file: Add a fd flag with O_RESOLVE_BENEATH semantics 2026-02-24 19:22:09 +01:00
teken
tests tests: Stop checking for failures from malloc(M_WAITOK) 2024-09-30 12:44:18 +08:00
tools vnode: Make the vop_vector reference a pointer to const 2024-12-03 01:02:10 +00:00
ufs kern: adopt the cr_gid macro for cr_groups[0] more widely 2026-01-20 08:27:09 +01:00
vm vm_fault: only rely on PG_ZERO when the page was newly allocated 2026-01-28 07:36:23 +01:00
x86 Add a new sysctl in order to diffrentiate UEFI architectures 2025-08-08 11:49:17 +02:00
xdr rpc: Fix the definition of xdr_void() 2024-11-05 01:05:26 +00:00
xen
Makefile
README.md

FreeBSD Kernel Source:

This directory contains the source files and build glue that make up the FreeBSD kernel and its modules, including both original and contributed software.

Kernel configuration files are located in the conf/ subdirectory of each architecture. GENERIC is the configuration used in release builds. NOTES contains documentation of all possible entries. LINT is a compile-only configuration used to maximize build coverage and detect regressions.

Documentation:

Source code documentation is maintained in a set of man pages, under section 9. These pages are located in share/man/man9, from the top-level of the src tree. Consult intro(9) for an overview of existing pages.

Some additional high-level documentation of the kernel is maintained in the Architecture Handbook.

Source Roadmap:

Directory Description
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 and other arch independent code
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