Lawrence Stewart 6cedd609b7 Introduce the sysclock_getsnapshot() and sysclock_snap2bintime() KPIs. The ...

sysclock_getsnapshot() function allows the caller to obtain a snapshot of all
the system clock and timecounter state required to create time stamps at a later
point. The sysclock_snap2bintime() function converts a previously obtained
snapshot into a bintime time stamp according to the specified flags e.g. which
system clock, uptime vs absolute time, etc.

These KPIs enable useful functionality, including direct comparison of the
feedback and feed-forward system clocks and generation of multiple time stamps
with different formats from a single timecounter read.

Committed on behalf of Julien Ridoux and Darryl Veitch from the University of
Melbourne, Australia, as part of the FreeBSD Foundation funded "Feed-Forward
Clock Synchronization Algorithms" project.

For more information, see http://www.synclab.org/radclock/

In collaboration with:	Julien Ridoux (jridoux at unimelb edu au)

2011-12-24 01:32:01 +00:00

..

bus_if.m

Add a new bus method, BUS_ADJUST_RESOURCE() that is intended to be a

2011-04-29 21:36:45 +00:00

capabilities.conf

Add experimental support for process descriptors

2011-08-18 22:51:30 +00:00

clock_if.m

…

cpufreq_if.m

…

device_if.m

Update comments for DEVICE_PROBE() to reflect that BUS_PROBE_DEFAULT is

2011-05-24 13:22:40 +00:00

genassym.sh

…

imgact_aout.c

Do not trash the argv[0] pointer for an a.out process on amd64.

2011-06-16 22:00:59 +00:00

imgact_elf32.c

…

imgact_elf64.c

…

imgact_elf.c

Control the execution permission of the readable segments for

2011-10-15 12:35:18 +00:00

imgact_gzip.c

Add accounting for most of the memory-related resources.

2011-04-05 20:23:59 +00:00

imgact_shell.c

The execution of the shebang script requires putting interpreter path,

2011-03-06 22:59:30 +00:00

inflate.c

…

init_main.c

Remove the long reprecated ``/stand/sysinstall'' from the init_path.

2011-10-27 10:25:11 +00:00

init_sysent.c

- Add the ffclock_getcounter(), ffclock_getestimate() and ffclock_setestimate()

2011-11-21 01:26:10 +00:00

kern_acct.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_alq.c

…

kern_clock.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_clocksource.c

Set negative quality to TSC timecounter when C3 state is enabled for Intel

2011-06-22 16:40:45 +00:00

kern_condvar.c

…

kern_conf.c

Use TASK_INITIALIZER() for dev_dtr_task rather than a dedicated SYSINIT().

2011-12-22 16:01:10 +00:00

kern_cons.c

belatedly transfer copyrights from libkern/gets.c to kern_cons.c

2011-12-17 15:50:45 +00:00

kern_context.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_cpu.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_cpuset.c

Add a missing curly bracket

2011-12-05 10:34:52 +00:00

kern_ctf.c

The in-kernel CTF parser caches the result of its first attempt to parse

2011-11-08 15:17:54 +00:00

kern_descrip.c

Reformat comment to be more readable in standard Xterm.

2011-11-15 01:48:53 +00:00

kern_dtrace.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

kern_environment.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_et.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_event.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_exec.c

Do not deliver SIGTRAP on exec as the normal signal, use ptracestop() on

2011-09-27 13:17:02 +00:00

kern_exit.c

Fix long-standing thinko regarding maxproc accounting. Basically,

2011-09-17 19:55:32 +00:00

kern_fail.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

kern_ffclock.c

Revise the sysctl handling code and restructure the hierarchy of sysctls

2011-12-01 07:19:13 +00:00

kern_fork.c

Move some code inside the racct_proc_fork(); it spares a few lock operations

2011-10-03 17:40:55 +00:00

kern_gzio.c

…

kern_hhook.c

Staticize malloc types.

2011-04-13 11:28:46 +00:00

kern_idle.c

On multi-core, multi-threaded PPC systems, it is important that the threads

2011-05-31 15:11:43 +00:00

kern_intr.c

- Remove the eintrcnt/eintrnames usage and introduce the concept of

2011-07-18 15:19:40 +00:00

kern_jail.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_khelp.c

Use the full and proper company name for Swinburne University of Technology

2011-04-12 08:13:18 +00:00

kern_kthread.c

Add experimental support for process descriptors

2011-08-18 22:51:30 +00:00

kern_ktr.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_ktrace.c

- Fix ktrace leakage if error is set

2011-12-08 03:20:38 +00:00

kern_linker.c

Add KLD_DEBUG option.

2011-11-06 08:10:41 +00:00

kern_lock.c

panic: add a switch and infrastructure for stopping other CPUs in SMP case

2011-12-11 21:02:01 +00:00

kern_lockf.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

kern_lockstat.c

…

kern_loginclass.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_malloc.c

Eliminate stale numbers from a comment.

2011-12-07 16:27:23 +00:00

kern_mbuf.c

Use ISO C99 integer types in sys/kern where possible.

2010-06-21 09:55:56 +00:00

kern_mib.c

Define two new sysctl node flags: CTLFLAG_CAPRD and CTLFLAG_CAPRW, which

2011-07-17 23:05:24 +00:00

kern_module.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_mtxpool.c

…

kern_mutex.c

panic: add a switch and infrastructure for stopping other CPUs in SMP case

2011-12-11 21:02:01 +00:00

kern_ntptime.c

Introduce the sysclock_getsnapshot() and sysclock_snap2bintime() KPIs. The

2011-12-24 01:32:01 +00:00

kern_osd.c

…

kern_physio.c

Account i/o done on cdevs.

2010-11-25 20:05:11 +00:00

kern_pmc.c

Commit the support for removing cpumask_t and replacing it directly with

2011-05-05 14:39:14 +00:00

kern_poll.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_priv.c

Add an extra comment to the SDT probes definition. This allows us to get

2010-08-22 11:18:57 +00:00

kern_proc.c

Fix style and white spaces.

2011-12-17 22:18:26 +00:00

kern_prot.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_racct.c

kern_racct: move sys/systm.h inclusion to its proper place

2011-12-12 07:46:10 +00:00

kern_rctl.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

kern_resource.c

- Add a sysctl to allow non-root users the ability to set idle

2011-12-13 14:00:27 +00:00

kern_rmlock.c

panic: add a switch and infrastructure for stopping other CPUs in SMP case

2011-12-11 21:02:01 +00:00

kern_rwlock.c

panic: add a switch and infrastructure for stopping other CPUs in SMP case

2011-12-11 21:02:01 +00:00

kern_sdt.c

Use ISO C99 integer types in sys/kern where possible.

2010-06-21 09:55:56 +00:00

kern_sema.c

…

kern_shutdown.c

introduce cngrab/cnungrab stub calls in some places where they make sense

2011-12-17 15:11:22 +00:00

kern_sig.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_switch.c

critical_exit: ignore td_owepreempt if kdb_active is set

2011-12-04 21:27:41 +00:00

kern_sx.c

put sys/systm.h at its proper place or add it if missing

2011-12-12 10:05:13 +00:00

kern_synch.c

panic: add a switch and infrastructure for stopping other CPUs in SMP case

2011-12-11 21:02:01 +00:00

kern_syscalls.c

Call chainevh callback when we are invoked with neither MOD_LOAD nor

2010-10-21 20:31:50 +00:00

kern_sysctl.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_tc.c

Introduce the sysclock_getsnapshot() and sysclock_snap2bintime() KPIs. The

2011-12-24 01:32:01 +00:00

kern_thr.c

Document a large number of currently undocumented sysctls. While here

2011-12-13 00:38:50 +00:00

kern_thread.c

Consistently use process spin lock for protection of the

2011-11-18 09:12:26 +00:00

kern_time.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_timeout.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

kern_umtx.c

Add umtx_copyin_timeout() and move parameter checks here.

2011-12-03 12:30:58 +00:00

kern_uuid.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_xxx.c

…

ksched.c

Use p4prio_to_tsprio to calculate TS priority instead of using

2011-06-07 02:50:14 +00:00

link_elf_obj.c

Remove malloc(9) return value checks when M_WAITOK is used.

2011-04-16 16:20:51 +00:00

link_elf.c

Even if the loaded module has no symbols, we still need to notify

2011-06-16 17:41:21 +00:00

linker_if.m

…

Make.tags.inc

Update tags build script

2011-07-10 00:53:04 +00:00

Makefile

Continue to introduce Capsicum Capability Mode support:

2011-03-01 13:28:27 +00:00

makesyscalls.sh

- Add the ffclock_getcounter(), ffclock_getestimate() and ffclock_setestimate()

2011-11-21 01:26:10 +00:00

md4c.c

…

md5c.c

…

p1003_1b.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

posix4_mib.c

Define two new sysctl node flags: CTLFLAG_CAPRD and CTLFLAG_CAPRW, which

2011-07-17 23:05:24 +00:00

sched_4bsd.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

sched_ule.c

ule: ensure that batch timeshare threads are scheduled fairly

2011-12-19 20:01:21 +00:00

serdev_if.m

…

stack_protector.c

…

subr_acl_nfs4.c

Remove assertion against empty NFSv4 ACLs. An empty ACL is not exactly

2011-10-05 17:29:49 +00:00

subr_acl_posix1e.c

execve(2) has a special check for file permissions: a file must have at

2010-08-30 16:30:18 +00:00

subr_autoconf.c

Retire PCONFIG and leave the priority of thread0 alone when waiting for

2011-01-06 22:09:37 +00:00

subr_blist.c

- Fix typos s/(more|less) then|\1 than/

2011-12-03 15:41:37 +00:00

subr_bufring.c

…

subr_bus.c

It doesn't make much sense to check whether child is NULL after already

2011-12-02 22:03:27 +00:00

subr_clock.c

Improve style and wording of comments and sysctl descriptions [1].

2011-01-09 14:34:56 +00:00

subr_devstat.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_disk.c

Correct bioq_disksort so that bioq_insert_tail() offers barrier semantic.

2010-09-02 19:40:28 +00:00

subr_eventhandler.c

…

subr_fattime.c

Use ISO C99 integer types in sys/kern where possible.

2010-06-21 09:55:56 +00:00

subr_firmware.c

Do not increment the parent firmware's reference count when any other

2011-11-19 00:20:28 +00:00

subr_hash.c

…

subr_hints.c

…

subr_kdb.c

introduce cngrab/cnungrab stub calls in some places where they make sense

2011-12-17 15:11:22 +00:00

subr_kobj.c

As it turns out, r186347 actually is insufficient to avoid the use of the

2011-11-15 20:11:03 +00:00

subr_lock.c

panic: add a switch and infrastructure for stopping other CPUs in SMP case

2011-12-11 21:02:01 +00:00

subr_log.c

Finish r210923, 210926. Mark some devices as eternal.

2011-01-04 10:59:38 +00:00

subr_mbpool.c

…

subr_mchain.c

Add unicode support to msdosfs and smbfs; original pathes from imura,

2011-11-18 03:05:20 +00:00

subr_module.c

Provide convenience function for obtaining MODINFO_ADDR and MODINFO_SIZE

2011-02-09 19:08:21 +00:00

subr_msgbuf.c

Fix a bug introduced in revision 222537.

2011-05-31 22:39:32 +00:00

subr_param.c

Modestly increase the maximum allowed size of the kmem map on i386.

2011-03-23 16:38:29 +00:00

subr_pcpu.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

subr_power.c

…

subr_prf.c

Fix double vision syndrome (read: double output) when in the

2011-10-16 14:16:46 +00:00

subr_prof.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_rman.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_rtc.c

Core structure and functions to support a feed-forward clock within the kernel.

2011-11-19 14:10:16 +00:00

subr_sbuf.c

r222015 introduced a new assertion that the size of a fixed-length sbuf

2011-08-19 08:29:10 +00:00

subr_scanf.c

…

subr_sglist.c

…

subr_sleepqueue.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_smp.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_stack.c

Constify stack argument for functions that don't modify it.

2011-11-16 19:06:55 +00:00

subr_syscall.c

Revert rev. 226893: subr_syscall.c is being included from C files and

2011-10-30 02:19:39 +00:00

subr_taskqueue.c

Ensure that ta_pending doesn't overflow u_short by capping its value at USHRT_MAX.

2011-09-15 08:42:06 +00:00

subr_trap.c

Assert that exiting process does not return to usermode.

2011-10-03 16:58:58 +00:00

subr_turnstile.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_uio.c

Constify args to copyiniov and copyinuio.

2011-11-14 07:12:10 +00:00

subr_unit.c

Fix typos - remove duplicate "the".

2011-02-21 09:01:34 +00:00

subr_witness.c

panic: add a switch and infrastructure for stopping other CPUs in SMP case

2011-12-11 21:02:01 +00:00

sys_capability.c

Revisit the capability failure trace points. The initial implementation

2011-10-18 07:28:58 +00:00

sys_generic.c

To limit amount of the kernel memory allocated, and to optimize the

2011-11-13 10:28:01 +00:00

sys_pipe.c

Fix select/poll/kqueue for write on reverse direction before first write.

2011-12-14 22:26:39 +00:00

sys_procdesc.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

sys_process.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

sys_socket.c

Add the fo_chown and fo_chmod methods to struct fileops and use them

2011-08-16 20:07:47 +00:00

syscalls.c

- Add the ffclock_getcounter(), ffclock_getestimate() and ffclock_setestimate()

2011-11-21 01:26:10 +00:00

syscalls.master

- Add the ffclock_getcounter(), ffclock_getestimate() and ffclock_setestimate()

2011-11-21 01:26:10 +00:00

systrace_args.c

- Add the ffclock_getcounter(), ffclock_getestimate() and ffclock_setestimate()

2011-11-21 01:26:10 +00:00

sysv_ipc.c

…

sysv_msg.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

sysv_sem.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

sysv_shm.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

tty_compat.c

…

tty_info.c

…

tty_inq.c

Fix whitespace inconsistencies in the TTY layer and its drivers owned by me.

2011-06-26 18:26:20 +00:00

tty_outq.c

Fix whitespace inconsistencies in the TTY layer and its drivers owned by me.

2011-06-26 18:26:20 +00:00

tty_pts.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

tty_tty.c

Finish r210923, 210926. Mark some devices as eternal.

2011-01-04 10:59:38 +00:00

tty_ttydisc.c

Fix whitespace inconsistencies in the TTY layer and its drivers owned by me.

2011-06-26 18:26:20 +00:00

tty.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

uipc_accf.c

…

uipc_cow.c

Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/

2011-02-25 10:11:01 +00:00

uipc_debug.c

…

uipc_domain.c

…

uipc_mbuf2.c

Use ISO C99 integer types in sys/kern where possible.

2010-06-21 09:55:56 +00:00

uipc_mbuf.c

Fix typos - remove duplicate "the".

2011-02-21 09:01:34 +00:00

uipc_mqueue.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

uipc_sem.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

uipc_shm.c

Use vm_mmap_to_errno().

2011-12-15 15:17:19 +00:00

uipc_sockbuf.c

Document a large number of currently undocumented sysctls. While here

2011-12-13 00:38:50 +00:00

uipc_socket.c

Remove a few bits of FreeBSD 2.x compatibility code.

2011-11-14 18:21:27 +00:00

uipc_syscalls.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

uipc_usrreq.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

vfs_acl.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

vfs_aio.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

vfs_bio.c

Rename vm_page_set_valid() to vm_page_set_valid_range().

2011-11-30 17:39:00 +00:00

vfs_cache.c

put sys/systm.h at its proper place or add it if missing

2011-12-12 10:05:13 +00:00

vfs_cluster.c

The hardware has caught up; improvements are now observed even at 128,

2011-03-16 16:22:59 +00:00

vfs_default.c

Existing VOP_VPTOCNP() interface has a fatal flow that is critical for

2011-11-19 07:50:49 +00:00

vfs_export.c

…

vfs_extattr.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

vfs_hash.c

…

vfs_init.c

Modify vfs_register() to use a hash calculation

2011-09-13 21:01:26 +00:00

vfs_lookup.c

Revisit the capability failure trace points. The initial implementation

2011-10-18 07:28:58 +00:00

vfs_mount.c

Introduce the option VFS_ALLOW_NONMPSAFE and turn it on by default on

2011-11-08 10:18:07 +00:00

vfs_mountroot.c

replace uses of libkern gets with cngets

2011-12-17 15:26:34 +00:00

vfs_subr.c

Add post-VOP hooks for VOP_DELETEEXTATTR() and VOP_SETEXTATTR() and use

2011-12-23 20:11:37 +00:00

vfs_syscalls.c

Fire a kevent if necessary after seeking on a regular file. This fixes a

2011-12-16 20:10:00 +00:00

vfs_vnops.c

Add the posix_fadvise(2) system call. It is somewhat similar to

2011-11-04 04:02:50 +00:00

vnode_if.src

Add post-VOP hooks for VOP_DELETEEXTATTR() and VOP_SETEXTATTR() and use

2011-12-23 20:11:37 +00:00