Add IoctlGetInt/IoctlSetInt, IoctlGetTermios/IoctlSetTermios and
IoctlGetWinsize/IoctlSetWinsize on Dragonfly. These are similar to the
already existing implementations on Linux, Darwin and Solaris.

Change-Id: I5a5a7ef69f02e01a4216779df5c927f241e5cec0
Reviewed-on: https://go-review.googlesource.com/76170Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Add IoctlGetInt/IoctlSetInt, IoctlGetTermios/IoctlSetTermios and
IoctlGetWinsize/IoctlSetWinsize on OpenBSD. These are similar to the
already existing implementations on Linux, Darwin and Solaris.

Change-Id: I99e9434fa50338a0b5d825490513e9383539727d
Reviewed-on: https://go-review.googlesource.com/75791
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Update the syscall numbers and error constants on macOS 10.13 with iOS
SDK 11.1.

The removed syscalls are all removed or marked as deprecated/old in the
following list

  https://opensource.apple.com/source/xnu/xnu-4570.1.46/bsd/kern/syscalls.master

which according to

  https://opensource.apple.com/release/macos-1013.html

is the kernel version used for macOS 10.13.

The poll function was moved around because I missed to regenerate the
zsyscall_darwin_*.go files in CL 74290.

Change-Id: I747c8c842f78f3db8d25b46759265aa99da9d739
Reviewed-on: https://go-review.googlesource.com/75972
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Now that go tip runs vet during go test	(CL 74356), the x/sys/windows
test fails due to the following vet error:

  syscall_windows_test.go:84: Fatal call has possible formatting directive %x

Fix it by using Fatalf instead.

Change-Id: I02536312c00bc9002400b29b5b5acef879a0e51a
Reviewed-on: https://go-review.googlesource.com/75973Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Fixes the following vet error:

  syscall_linux_test.go:181: golang.org/x/sys/unix.Timeval composite literal uses unkeyed fields

Change-Id: I6973ad4ecd54b542074610a755573f98eb23f343
Reviewed-on: https://go-review.googlesource.com/75790
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Change-Id: I7b1ff99b46273ad32c26247a2435e674c9e42789
Reviewed-on: https://go-review.googlesource.com/75810
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
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Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Use to setarrlist to implement UtimesNanoAt with nanosecond precision
(on Mac OS 10.13 with APFS). Translate AT_SYMLINK_NOFOLLOW to
FSOPT_NOFOLLOW correspondingly.

Change-Id: I1468a1f4eecb53b2280ff6329b1ec64e204701f1
Reviewed-on: https://go-review.googlesource.com/75650
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>

Follow CL 74952 for x/sys/unix.

Update golang/go#22528

Change-Id: Id146da75b80a64cfa4eac28e9bb7b3befe944718
Reviewed-on: https://go-review.googlesource.com/75610
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Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Poll is now supported for all unix systems. Also enable TestPoll for all
of them.

Change-Id: Id6250702bf0d29c49fbeeed4cca21d232b72666a
Reviewed-on: https://go-review.googlesource.com/74310
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Now that all BSD flavors support Poll, move the common implementation
into syscall_bsd.go

Change-Id: Id62a6163d41ef24e33f96540b661002b095a2fa1
Reviewed-on: https://go-review.googlesource.com/74290
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

In order to make conversion to string easier, change the Utsname
members from int8 array to byte array.

Also add a test on Linux for Uname and the string conversion of the
Utsname members.

Fixes golang/go#20753

Change-Id: Iec793dfb4a6dd8f3523cf0b6284a6162074f2e9e
Reviewed-on: https://go-review.googlesource.com/74331
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Tested with TestPoll extracted from syscall_linux_test.go.

Now that Poll is supported on all unix flavors, TestPoll can be moved
to syscall_unix_test.go in a successive CL.

Change-Id: Ibd5ff3f45198008464522c3b165f2af7865ce81e
Reviewed-on: https://go-review.googlesource.com/73881Reviewed-by: Ian Lance Taylor <iant@golang.org>

Tested with TestPoll extracted from syscall_linux_test.go. Once Poll is
supported on all OSes this test can be moved to syscall_unix_test.go.

Change-Id: Ic7ad2e749039e2e81612c2085d6fab73581d59f9
Reviewed-on: https://go-review.googlesource.com/73872
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Update go to 1.9.2 in the Dockerfile used to generate the Linux go files.

The update also changes some zerror definitions: RLIM_INFINITY is
assigned to Rlimit.{Cur,Max} which are both uint64 on all architectures.
PR_SET_PTRACER_ANY is used with Prctl which expects an uintptr.

With the current version, an "constant -1 overflows uint64" error would
result if these constants were used directly without type conversion.

Change-Id: Iefd23a44e983b4fcf210121776531df225014112
Reviewed-on: https://go-review.googlesource.com/73873
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

If generating ptrace definitions for a particular pair fails for any
reason, a success message would still be shown. Avoid it in case there
was a failure.

Change-Id: Ica59c888586c055e8ef333a0db00bde2c4d15145
Reviewed-on: https://go-review.googlesource.com/73874
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

CL 62111 removed the _SC_PAGESIZE definition from the types_*.go files
but did not re-generate ztypes_linux_sparc64.go. Remove the definition
manually because linux/spar64 is not yet covered by the new Docker-based
build system.

Change-Id: I1ddebc3efa0d9d23c925ca84de31f63a3a883a99
Reviewed-on: https://go-review.googlesource.com/73876
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Add godoc comments for Time{spec,val} methods Unix and Nano.
Also move them to timestruct.go to the other Time{spec,val} related
functionality.

Change-Id: I3b18c5d1bfb235ea4fea25a18fc34b85c21bb365
Reviewed-on: https://go-review.googlesource.com/73871
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Fix the header in the generated zptrace*_linux.go files to consistently
use single space after a period.

Change-Id: I527f27a68e14bc103639b1dd5734ec06ae267e01
Reviewed-on: https://go-review.googlesource.com/73875
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Tested with TestPoll extracted from syscall_linux_test.go. Once Poll is
supported on all OSes this test can be moved to syscall_unix_test.go.

Change-Id: I61ec50c5ea7d6db43f7688ed925d6ed26a6bbc3a
Reviewed-on: https://go-review.googlesource.com/73650
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Change-Id: I7ae67ce410ae2816c2f3e8ecb26e46265aa11d7f
Reviewed-on: https://go-review.googlesource.com/73771Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>

For pairs of GOARCH values that can execute each other's binaries on
the same system, such as 386 and amd64, add the definitions and
functions required to fetch and set registers when debugging either
variant.

Fixes golang/go#9739

Change-Id: I7896ddef7d341ffaee56614ebd080dc38c708ed4
Reviewed-on: https://go-review.googlesource.com/73555
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>

Copy CL 17488 into golang.org/x/sys/windows.

Change-Id: I4c6bf14982dd1fc2b8aa70ec16ad7b7c18e76bae
Reviewed-on: https://go-review.googlesource.com/73353Reviewed-by: Tim Cooper <tim.cooper@layeh.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Some of LazyProc's methods will panic if the procedure cannot be
found. This patch documents that fact.

Change-Id: If446a61e001ae04eaba0ff08b512df4def8a00b7
Reviewed-on: https://go-review.googlesource.com/73450Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>

Follow CL 20022 and consistently use single space after a period in
documentation.

Generated with:

$ perl -i -npe 's,^(\s*// .+[a-z]\.)  +([A-Z]),$1 $2,' $(git grep -l -E '^\s*//(.+\.)  +([A-Z])')

Change-Id: Ia29ad823668f060e81293e848a79fc4b4857d94b
Reviewed-on: https://go-review.googlesource.com/73530Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Tested with TestPoll extracted from syscall_linux_test.go. Once Poll is
supported on all OSes this test can be moved to syscall_unix_test.go.

Change-Id: I03f4396be2e190770abb219c1c5324ca55bcfa27
Reviewed-on: https://go-review.googlesource.com/73430
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Tested with TestPoll extracted from syscall_linux_test.go. Once Poll is
supported on all OSes this test can be moved to syscall_unix_test.go.

Change-Id: I56ee0124a04c64e3ea51a1653901f2f4277983e6
Reviewed-on: https://go-review.googlesource.com/73370
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Tested with TestPoll extracted from syscall_linux_test.go. Once Poll is
supported on all OSes this test can be moved to syscall_unix_test.go.

Change-Id: Ia57e3a92e6a50cb22edde8a31e1c4e70d894dc4c
Reviewed-on: https://go-review.googlesource.com/73310
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

All the implementations of NsecToTimespec and NsecToTimeval were the
same other than types. Write a single version that uses
GOARCH/GOOS-specific setTimespec and setTimeval functions to handle the
types.

The logic in NsecToTimespec and NsecToTimeval caused times before 1970
to have a negative usec/nsec. The Linux kernel requires that usec
contain a positive number; for consistency, we do this for both
NsecToTimespec and NsecToTimeval.

Follow CL 30826 which did the same for syscall.

Change-Id: Id6c6f4fef8450251447d1a5b01f35c2a36b5aeb1
Reviewed-on: https://go-review.googlesource.com/73170
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Add a test for UtimesNanoAt which makes sure the timestamp of a symlink
is updated.

Change-Id: I819e43db1d390fb37f011b34e58ff9d3d06595f1
Reviewed-on: https://go-review.googlesource.com/72377
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

All implementations of these functions are identical.

Follow CL 30819 which did the same for syscall.

Change-Id: I3c78f05ea12251306f3e100a006d266154a5238e
Reviewed-on: https://go-review.googlesource.com/72378
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

To be used e.g. in
https://github.com/gokrazy/gokrazy/commit/2e60d5b8c8c35e0eed1bb155c7d709c729c8f041

Change-Id: If79ffec9021dc79375c861a0ddd9dd443adb4692
Reviewed-on: https://go-review.googlesource.com/72375Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

They might be used as special values in struct Timespec. See
http://man7.org/linux/man-pages/man2/utimensat.2.html for details.

Change-Id: I1c2d6d7731ca7f077d033e51ee6421a4f2cfbb89
Reviewed-on: https://go-review.googlesource.com/72376
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

The current GetProcAddress implementation only resolves functions in
DLLs by name. Add GetProcAddressByOrdinal that allows resolving
functions by ordinal number, using the same GetProcAddress call from
kernel32.dll in the background.

This is particularly useful for some functions (e.g. IsOS from
shlwapi.dll in some older versions of Windows) that cannot be found by
name.

Fixes golang/go#16507

Change-Id: Ib5fba7568c365a0aa2491c1261876b3a3929ec3d
Reviewed-on: https://go-review.googlesource.com/70690Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Follow CL 70590 which did the same for syscall.

unix.Select uses SYS_PSELECT6 on arm64 and mipx64x, however this
syscall expects its 5th argument to be of type Timespec (with seconds
and nanoseconds) instead of type Timeval (with seconds and microseconds)
This leads to the timeout being too short by a factor of 1000.

This CL fixes this by adjusting the timeout argument accordingly,
similarly to how glibc does it for architectures where neither
SYS_SELECT nor SYS__NEWSELECT are available. It also makes Pselect
generaly available on linux.

Updates golang/go#22246

Change-Id: I69f8821a40c59ee469b8a986d784a4db8727ee9a
Reviewed-on: https://go-review.googlesource.com/70610
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Add the MNT_* flags to be used e.g. with Getfsstat on FreeBSD.

Change-Id: I1afb50f715f447f85b4ece3d3fead8b9ce79c4f6
Reviewed-on: https://go-review.googlesource.com/70250Reviewed-by: Matt Layher <mdlayher@gmail.com>
Run-TryBot: Matt Layher <mdlayher@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Since CL 10087 build tags for GOOS and GOARCH are emitted by
mksysctl_openbsd.go but the generated file is always written to
zsysctl_openbsd.go.

Adjust mkall.sh to write to GOOS/GOARCH specific files and create a
zsysctl_openbsd_${GOARCH}.go file for each GOARCH supported on openbsd.

Change-Id: Id2a7b2815081f024de0ca87ba870a672bab32d24
Reviewed-on: https://go-review.googlesource.com/68870
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Move the README to README.md so Gerrit can render it; currently
Gerrit only renders files named exactly "README.md" (for example at
https://go.googlesource.com/go).

Add more links to the README explaining how to file issues,
how to submit code changes, where to download the code to and
how to get it. Hopefully this should help people who go to
https://go.googlesource.com/sys or https://github.com/golang/sys
figure out how to get started with development.

Change-Id: I2b3b9cb1021292c3cb4b5eb3a84b5c17eb8429da
Reviewed-on: https://go-review.googlesource.com/49911Reviewed-by: Kevin Burke <kev@inburke.com>

Analog to the runtime package, Select should be using newselect
instead of select. This change addresses this problem and regenerates
zsyscall_linux_* for ppc64 and ppc64le.

Updates golang/go#21946

Change-Id: I7ed5c2490ba2ce556f143f8e8377572ab345f7b8
Reviewed-on: https://go-review.googlesource.com/65091
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>

When adding Mprotect to TestMmap in CL 56172, PROT_WRITE was implicitly
assumed to also include PROT_READ. This is not necessarily true on all
OSes and makes TestMmap crash on openbsd/386.

As suggested my Mikio Hara fix it by also setting PROT_READ on the
memory mapping.

Fixes golang/go#21962

Change-Id: Ia789ab8b31f8dec0c3db23cc950ccdd4aab3db05
Reviewed-on: https://go-review.googlesource.com/65230
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

CL 62111 removed the _SC_PAGESIZE definition from the types_*.go files
but did not re-generate ztypes_solaris_amd64.go. Do so now to get rid of
_SC_PAGESIZE there as well.

Change-Id: Icde4366f4b7a92e8a89170ad00ff2b807e7655e1
Reviewed-on: https://go-review.googlesource.com/64350Reviewed-by: Ian Lance Taylor <iant@golang.org>