Allow sysctl to filter boot and runtime tunables.

Add the following flags to sysctl:
-W - show only writable sysctls
-T - show only tuneable sysctls

This can be used to create a /var/run/sysctl

Allow sysctl to filter boot and runtime tunables.

Add the following flags to sysctl:
-W - show only writable sysctls
-T - show only tuneable sysctls

This can be used to create a /var/run/sysctl.boot to
compare set tunables versus booted tunables.

Sponsored by: iXsystems

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In parse():

- Only operate on copy, don't operate on source.
- Eliminate home-rolled strsep().
- Constify the parameter.

MFC after: 2 weeks

MFC

Merge head r233826 through r234834.

IFC @ r234692

sys/amd64/include/cpufunc.h
sys/amd64/include/fpu.h
sys/amd64/amd64/fpu.c
sys/amd64/vmm/vmm.c

- Add API to allow vmm FPU state init/save/restore.

FP stuff discussed with: kib

s/Free Memory Pages/Free Memory/ to avoid confusion, since we're
reporting a number of bytes rather than a number of pages

PR: misc/165208
Submitted by: Arnaud Lacombe <lacombar@gmail.com>
Approved

s/Free Memory Pages/Free Memory/ to avoid confusion, since we're
reporting a number of bytes rather than a number of pages

PR: misc/165208
Submitted by: Arnaud Lacombe <lacombar@gmail.com>
Approved by: cperciva
MFC after: 3 days

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IFC @230489 (pending review).

IFC to head to catch up the bhyve branch

Approved by: grehan@

If the -d flag is specified, ignore any new values specified and only
display the descriptions of specified nodes.

Reported by: Jason Hellenthal jhell of dataix net
MFC after: 2 weeks

Introduce signed and unsigned version of CTLTYPE_QUAD, renaming
existing uses. Rename sysctl_handle_quad() to sysctl_handle_64().

sysctl(8) should use the CTLTYPE to determine the type of data when
reading. (This was already done for writing to a sysctl). This
requires all SYSCTL setups to specify a type. Most of them are no

sysctl(8) should use the CTLTYPE to determine the type of data when
reading. (This was already done for writing to a sysctl). This
requires all SYSCTL setups to specify a type. Most of them are now
checked at compile-time.

Remove SYSCTL_*X* sysctl additions as the print being in hex should be
controlled by the -x flag to sysctl(8).

Succested by: bde

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The kernel is not exporting any "T,dev_t" sysctl nodes anymore, so
remove the capability and mention from sysctl(8).

Make the format of "Real Memory" and "Virtual Memory" lines more
consistent with the rest of sysctl vm.vmtotal output.

MFC after: 3 days

Update to current version of head.

MFC r205118:

Free the memory allocated via strdup.

PR: bin/113881
Submitted by: Alexander Drozdov (dzal_mail at mtu-net.ru)
Approved by: rrs (mentor)

Free the memory allocated via strdup.

PR: bin/113881
Submitted by: Alexander Drozdov dzal_mail mtu-net.ru
Approved by: rrs (mentor)
MFC after: 1 week

IFH@204581

sysctl(8): make WARNS=3 clean

Fixes inspired by work done in DragonflyBSD.

PR: bin/140016
Approved by: ed (Co-mentor)

Merge r203310,203547,203717 from head:

Implement the "-i" option to sysctl(8), to ignore failures while
retrieving individual OIDs. This allows the same list of OIDs to be
passed to sysctl(8)

Merge r203310,203547,203717 from head:

Implement the "-i" option to sysctl(8), to ignore failures while
retrieving individual OIDs. This allows the same list of OIDs to be
passed to sysctl(8) across different systems where particular OIDs may
not exist, and still get as much information as possible from them.

PR: bin/123644
Submitted by: dhw

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Add -i to usage()

Noticed by: ru
MFC after: 5 days

Implement the "-i" option to sysctl(8), to ignore failures while
retrieving individual OIDs. This allows the same list of OIDs to be
passed to sysctl(8) across different systems where particular OID

Implement the "-i" option to sysctl(8), to ignore failures while
retrieving individual OIDs. This allows the same list of OIDs to be
passed to sysctl(8) across different systems where particular OIDs may not
exist, and still get as much information as possible from them.

PR: bin/123644
Submitted by: dhw
Approved by: ed (mentor)
MFC after: 2 weeks

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MFC @199204

Just use devname(3) to print device names.

Right now sysctl just prints the major/minor numbers of a device.
Instead of rolling our own routine for this, we'd better just call
devname(3) to perform

Just use devname(3) to print device names.

Right now sysctl just prints the major/minor numbers of a device.
Instead of rolling our own routine for this, we'd better just call
devname(3) to perform a translation to a device name for us.

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Make input parsing in Farhenheit actually work.

Don't clobber *p with '\0' when testing whether it has the value of 'F'.
Just use the semantics of strtof() properly. If it returns p, we know
that it

Make input parsing in Farhenheit actually work.

Don't clobber *p with '\0' when testing whether it has the value of 'F'.
Just use the semantics of strtof() properly. If it returns p, we know
that it parsed the string until it reached 'C' or 'F'.

The code has not changed since it has been imported (r161951, Sep 3,
2006).

Submitted by: Alexandre Perrin <kaworu@kaworu.ch>
MFC after: 1 week

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Merge from head