freebsd-dev/sys
Mark Johnston b529028676 Implement support for boot-time DTrace.
This allows one to enable DTrace probes relatively early during boot,
during SI_SUB_DTRACE_ANON, before dtrace(1) can invoked. The desired
enabling is created using dtrace -A, which writes a /boot/dtrace.dof
file and uses nextboot(8) to ensure that DTrace kernel modules are loaded
and that the DOF file describing the enabling is loaded by loader(8)
during the subsequent boot. The trace output can then be fetched with
dtrace -a.

With this commit, boot-time DTrace is only functional on i386 and amd64: on
other architectures, the high-resolution timer frequency is initialized
during SI_SUB_CLOCKS and is thus not available when the anonymous
tracing state is initialized. On x86, the TSC is used and is thus available
earlier.

MFC after:	1 month
Relnotes:	yes
2016-04-10 01:25:48 +00:00
..
amd64 Make CloudABI's way of doing TLS more friendly to userspace emulators. 2016-04-06 11:11:31 +00:00
arm Enable PHY regulator when the optional "phy-supply" property is present. 2016-04-09 11:23:46 +00:00
arm64 Fix interrupts delivery on ThunderX for VF IDs beyond 8 2016-04-07 10:36:50 +00:00
boot Align the start of the text segment to an 8-byte boundary. This fixes 2016-04-09 19:09:06 +00:00
bsm Merge from contrib/openbsm to bring the kernel audit bits up to date with OpenBSM 1.2 alpha 4: 2015-12-20 23:22:04 +00:00
cam Add couple new constants from SPC5r08. 2016-04-09 18:39:57 +00:00
cddl Implement support for boot-time DTrace. 2016-04-10 01:25:48 +00:00
compat Make CloudABI's way of doing TLS more friendly to userspace emulators. 2016-04-06 11:11:31 +00:00
conf Add more fine-grained kernel options for NUMA support. 2016-04-09 13:58:04 +00:00
contrib Add DTrace probes for packets flagged as bad by ipfilter. All probes 2016-04-07 01:42:09 +00:00
crypto Break up opencrypto/xform.c so it can be reused piecemeal 2015-12-30 22:43:07 +00:00
ddb Add td_swinvoltick to track last involuntary context switch 2016-03-25 19:35:29 +00:00
dev USB: replace 0 with NULL for pointers. 2016-04-09 20:36:07 +00:00
fs Fix comment. 2016-04-08 04:29:05 +00:00
gdb
geom Create the GELIBOOT GEOM_ELI flag 2016-04-08 01:25:25 +00:00
gnu Update our copy of the Linux dts files to be in sync with Linux 4.5-rc1. We 2016-02-09 16:42:32 +00:00
i386 Add kern.features flags for linux and linux64 modules 2016-04-05 22:36:48 +00:00
isa Fix the resource_list_print_type() calls to use uintmax_t. 2016-03-22 22:25:08 +00:00
kern Add more fine-grained kernel options for NUMA support. 2016-04-09 13:58:04 +00:00
kgssapi kcrypto_aes: Use separate sessions for AES and SHA1 2016-02-02 00:14:51 +00:00
libkern
mips Fix MIPS INTRNG omissions, add soft/hard interrupts with different names 2016-04-08 15:48:10 +00:00
modules Add option to specify built-in keymap for kbdmux 2016-04-07 20:12:45 +00:00
net Revert accidental submit of WIP as part of r297609 2016-04-06 04:58:20 +00:00
net80211 [net80211] log the node pointer when calling ht node init/cleanup 2016-04-09 22:01:32 +00:00
netgraph Migrate many bus_alloc_resource() calls to bus_alloc_resource_anywhere(). 2016-02-27 03:38:01 +00:00
netinet Mfp: r296310,r296343 2016-04-09 12:05:23 +00:00
netinet6 Fix regression introduced in r296986. 2016-04-08 11:13:24 +00:00
netipsec Fix handling of net.inet.ipsec.dfbit=2 variable. 2016-03-18 09:03:00 +00:00
netnatm
netpfil pf: Improve forwarding detection 2016-03-16 06:42:15 +00:00
netsmb
nfs Do not try to install a default route for each interface found, because 2016-03-27 23:16:37 +00:00
nfsclient
nfsserver
nlm
ofed tcp/lro: Use tcp_lro_flush_all in device drivers to avoid code duplication 2016-04-01 06:28:33 +00:00
opencrypto Break up opencrypto/xform.c so it can be reused piecemeal 2015-12-30 22:43:07 +00:00
pc98 Fix the resource_list_print_type() calls to use uintmax_t. 2016-03-22 22:25:08 +00:00
powerpc Convert pci_delete_child() to a bus_child_deleted() method. 2016-04-06 04:10:22 +00:00
riscv Add support for ddb(4). 2016-03-10 15:51:43 +00:00
rpc Remove some NULL checks for M_WAITOK allocations. 2016-03-29 13:56:59 +00:00
security audit(8): leave unsigned comparison for last. 2016-04-08 03:26:21 +00:00
sparc64 Convert pci_delete_child() to a bus_child_deleted() method. 2016-04-06 04:10:22 +00:00
sys Rename SHT_AMD64_UNWIND to SHT_X86_64_UNWIND per ABI doc 2016-04-07 20:26:27 +00:00
teken
tests
tools Fix MFS builds when both MD_ROOT_SIZE and MFS_IMAGE are specified 2016-02-02 07:02:51 +00:00
ufs Add four new RCTL resources - readbps, readiops, writebps and writeiops, 2016-04-07 04:23:25 +00:00
vm Add more fine-grained kernel options for NUMA support. 2016-04-09 13:58:04 +00:00
x86 Add more fine-grained kernel options for NUMA support. 2016-04-09 13:58:04 +00:00
xdr
xen xenbus: add a comment with the names of the generated accessors 2016-01-15 14:34:31 +00:00
Makefile Add riscv to the list of architectures for cscope. 2016-02-29 16:39:27 +00:00