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Tobias Klauser f11e5e49a4 unix: use unsafe.Slice in (*FileHandle).Bytes 
Change-Id: Ic2b88577ec6fd975bbba0538790d2ff312d85d3f
Reviewed-on: https://go-review.googlesource.com/c/sys/+/435776
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
 2022-09-28 14:01:12 +00:00
Tobias Klauser 6fa7a7ca2b windows: allow calling WSASendto with nil Sockaddr 
Same as CL 434535 did for the syscall package.

For golang/go#55845

Change-Id: I17f30152ae973b64ac65e08cefd5442e9bf19e2c
Reviewed-on: https://go-review.googlesource.com/c/sys/+/435777
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Benny Siegert <bsiegert@gmail.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
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 2022-09-28 14:00:15 +00:00
Tobias Klauser 8cfa568d3c unix: allow calling Sendto with nil Sockaddr 
Same as CL 433504 did for the syscall package.

For golang/go#55845

Change-Id: I3ca2d7fab9da77c304487b4c134a9675da99deca
Reviewed-on: https://go-review.googlesource.com/c/sys/+/434515
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
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 2022-09-26 16:39:33 +00:00
Tobias Klauser 7b5979e65e unix: remove Go 1.12 compatibility on darwin 
Go 1.12 was released more than 3 years ago. Dropping support for it will
simplify generating the wrappers needed for Getdirentries
implementation.

Change-Id: If24bf6ff9076fb4e281948c67bac87744df98d7a
Reviewed-on: https://go-review.googlesource.com/c/sys/+/430176
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
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 2022-09-15 20:00:43 +00:00
Tobias Klauser 76c7481b51 all: simplify unsafe.Slice usage in {Byte,UTF16}PtrToString 
On windows, use unsafe.Slice instead of unsafeheader as already the case
for unix and plan9.

The pointers are already *byte/*uint16, so the type conversion can be
omitted as well.

Change-Id: Ida7264cc0c1948bf563ed91d51e637edcdafb77a
Reviewed-on: https://go-review.googlesource.com/c/sys/+/430515
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
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Reviewed-by: Bryan Mills <bcmills@google.com>
 2022-09-13 15:31:01 +00:00
Tobias Klauser aba9fc2a8f unix: use unsafe.Slice instead of unsafeheader package 
Go 1.18 is the minimum supported Go version and unsafe.Slice was
introduced in Go 1.17.

Change-Id: Ie5f1fad01f219e7b7a190de2c49676f366ad3bc7
Reviewed-on: https://go-review.googlesource.com/c/sys/+/428515
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Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
 2022-09-09 16:24:55 +00:00
Tobias Klauser 7ac13a9a92 unix: don't call t.Fatal from goroutine in TestSendmsgBuffers 
Change-Id: Iddef23a1fb2fcde4560ec0bb9e9ae0301fef965f
Reviewed-on: https://go-review.googlesource.com/c/sys/+/429415
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
 2022-09-08 15:00:16 +00:00
Tobias Klauser 87db552b00 plan9: use unsafe.Slice instead of unsafeheader package 
Go 1.18 is the minimum supported Go version and unsafe.Slice was
introduced in Go 1.17.

Change-Id: I696dba9b932c522688ee55fdef43d8776f8afbe1
Reviewed-on: https://go-review.googlesource.com/c/sys/+/428516
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
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 2022-09-07 06:24:15 +00:00
Tobias Klauser d48e67d002 unix: use strconv.Itoa instead of local implementation 
This was originally copied over from package syscall where it was
replaced by internal/itoa in CL 301549.

For golang.org/x/sys/unix we may import strconv, so use strconv.Itoa
instead.

Change-Id: Iac125fbd0f64c385f9f0c02d4a7af762364b67aa
Reviewed-on: https://go-review.googlesource.com/c/sys/+/425304
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Reviewed-by: Heschi Kreinick <heschi@google.com>
 2022-08-29 20:07:55 +00:00
Tobias Klauser 2c41d75977 unix: add IoctlLoop{Get,Set}Status64 on linux 
These ioctls are used to get/set the status of a loop device. See
https://man7.org/linux/man-pages/man4/loop.4.html for details.

Change-Id: Ia66db639e6d9326af79954eea5c8f7515aa171d1
Reviewed-on: https://go-review.googlesource.com/c/sys/+/425296
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 2022-08-29 20:04:59 +00:00
Tobias Klauser 8e32c043e4 unix: add missing IFLA_* consts on linux 
Add these based on uapi/linux/if_link.h as of Linux kernel 5.19.

Change-Id: I56be6e6178aad3d10194a45f774ccf307ed461b5
Reviewed-on: https://go-review.googlesource.com/c/sys/+/420694
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 2022-08-04 21:44:06 +00:00
Tobias Klauser a90be44021 unix: fix sendmsgN return value for empty iovecs and non-empty oob 
Don't shadow the empty var when determining whether to send a single
byte when iovecs are empty but oob is non-empty. This will lead to the
n value correctly being reset to 0 before return.

No test because it's not possible to trigger this case on all platforms,
e.g. darwin where sendmsg with empty buf and non-empty oob returns
EINVAL.

This was introduced by CL 412497 and CL 419396.

Updates golang/go#52885

Change-Id: Iafc5a4b22e10b396ba5f7d4f2ac1c50df195a125
Reviewed-on: https://go-review.googlesource.com/c/sys/+/419914
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Reviewed-by: Florian Lehner <lehner.florian86@gmail.com>
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 2022-07-31 17:44:39 +00:00
Tobias Klauser 3c1f35247d unix: implement recvmsgRaw and sendmsgN on aix 
This allows using RecvmsgBuffers and SendmsgBuffers on aix in x/net.

For golang/go#54099

Change-Id: Ib21c59244c9d74b826f4fc8ba3314e3602fd9a8a
Reviewed-on: https://go-review.googlesource.com/c/sys/+/419396
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 2022-07-28 00:49:56 +00:00
Tobias Klauser e65921a090 unix/linux: use Go 1.19rc2 instead of building gotip 
CL 399336 added support for generating linux/loong64 types and constants
and CL 406794 switched it to use gotip after support for linux/loong64
was merged. The upcoming Go 1.19 release will support that platform, so
switch to use 1.19rc2.

Change-Id: Id3be69eb8f04bdf215f248df09bb5da9456494e7
Reviewed-on: https://go-review.googlesource.com/c/sys/+/419395
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 2022-07-27 05:50:44 +00:00
Tobias Klauser 4f61da869c unix: use ByteSliceToString in TestMountUnmount on zos 
Use the existing ByteSliceToString implementation instead of duplicating
it in TestMountUnmount.

Change-Id: Ia47510ac1ac8094a7e9265edf8a452bcacf06032
Reviewed-on: https://go-review.googlesource.com/c/sys/+/411379
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 2022-06-15 21:35:10 +00:00
Tobias Klauser bf31f56cad unix: add MemfdSecret on linux/riscv64 
Now that SYS_MEMFD_SECRET is defined on linux/riscv64, CL 398514 can be
reverted to provide MemfdSecret on that platform as well.

Fixes golang/go#51547

Change-Id: I48e3e029fd2a3aeb860d69faf387bc10753759c7
Reviewed-on: https://go-review.googlesource.com/c/sys/+/411376
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 2022-06-15 21:21:20 +00:00
Tobias Klauser af78867b19 unix/linux: update to Linux kernel 5.19-rc2 
Update to 5.19-rc2 instead of 5.18 for the following reasons:

- Support for LoongArch has been merged upstream. This allows to drop
  the loong64 specific kernel patches.
- Fixes [1] an issue encountered with when generating the
  SOCK_TXREHASH_DEFAULT constant from linux/socket.h on 5.18
- Contains a fix [2] to provide SYS_MEMFD_SECRET on linux/riscv64 as
  well, The underlying syscall was already available in earlier kernel
  versions. Also see golang/go#51547.

[1] https://lore.kernel.org/r/20220531094345.13801-1-tklauser@distanz.ch
[2] https://lore.kernel.org/r/20220505081815.22808-1-tklauser@distanz.ch

Change-Id: I6c3ec30a067eae339c443ee55962d94c84feffd9
Reviewed-on: https://go-review.googlesource.com/c/sys/+/411375
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
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 2022-06-15 21:21:18 +00:00
Tobias Klauser 003f7fa1e2 unix: implement Fstat{,at} using Statx on linux/loong64 
linux/loong64 doesn't provide the fstat and fstatat syscalls in the
upstream Linux kernel. Instead, solely the statx syscall is available.
Use it to implement Fstat and Fstatat.

This follows the implementation in package syscall.

Change-Id: I69eefc863a37bd76ef2ab1e7670d1724dc147aae
Reviewed-on: https://go-review.googlesource.com/c/sys/+/411378
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 2022-06-15 21:19:32 +00:00
Tobias Klauser f9599da83c unix: use ByteSliceToString in TestIoctlPtmget 
Change-Id: I42cb5be80246af76cca9b6a09c6cb85bc07ab081
Reviewed-on: https://go-review.googlesource.com/c/sys/+/407254
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 2022-05-20 15:11:50 +00:00
Tobias Klauser 5e4e11fc64 unix/linux: use gotip instead of patched Go 1.18 
CL 399336 added support for generating linux/loong64 types and constants
by using a patched version of Go 1.18. The necessary changes have since
been submitted to gotip, so use Go build from the master branch to
generate types and consts.

The changes in the cgo -godefs generated comments are due to CL 396936,
also see go.dev/issue/52063

Change-Id: I314156675e79ba77b9eb1fa1845b20ca974ec77a
Reviewed-on: https://go-review.googlesource.com/c/sys/+/406794
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
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 2022-05-17 19:59:34 +00:00
Tobias Klauser 3f8b81556e unix/linux: update to Linux kernel 5.17 
Change-Id: I8e982e355d6058198f5b555c2f33e18301872909
Reviewed-on: https://go-review.googlesource.com/c/sys/+/398435
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 2022-04-06 16:36:25 +00:00
Tobias Klauser d36c6a25d8 unix/linux: update to Go 1.18 
Change-Id: I663b4e6346cec4a51f4423a38cc1315c5b51956d
Reviewed-on: https://go-review.googlesource.com/c/sys/+/396114
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 2022-03-28 11:51:05 +00:00
Tobias Klauser 530d0810a4 unix: add utimensat libc wrapper on darwin 
Direct syscalls are no longer supported on darwin (CL 250437), so
utimensat can be implemented as a wrapper around the libc function.
The utimensat function was added in macOS 10.13 and Go 1.17 dropped
support for macOS 10.12.

This also allows to drop the fallback to setattrlistTimes which was
used to set timestamps with nanosecond resolution before utimensat could
be used, see golang/go#22528 and CL 74952.

Change-Id: I206291277e6f7200ca7a659e29075968647779a6
Reviewed-on: https://go-review.googlesource.com/c/sys/+/251737
Trust: Tobias Klauser <tobias.klauser@gmail.com>
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 2022-03-27 21:02:14 +00:00
Tobias Klauser 2edf467146 windows: optimize UTF16{,Ptr}FromString 
Use strings.IndexByte in UTF16FromString instead of an open-coded loop.

Change-Id: Iac4374d9a58e40659147d35c9ab21bb89f5da629
Reviewed-on: https://go-review.googlesource.com/c/sys/+/393594
Trust: Tobias Klauser <tobias.klauser@gmail.com>
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 2022-03-18 05:55:25 +00:00
Tobias Klauser 51cd9980da unix: unify Recvmsg epilogues 
Follow CL 361258 which did the same in package syscall.

Change-Id: I721406286d84ec999978e7e1ea25b6a2b3e195e6
Reviewed-on: https://go-review.googlesource.com/c/sys/+/393294
Trust: Tobias Klauser <tobias.klauser@gmail.com>
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 2022-03-17 06:15:10 +00:00
Tobias Klauser 22a226b3d1 unix: unify Sendmsg prologues 
Follow CL 361256 which did the same in package syscall.

Change-Id: Ifd22e515c220806f02400baded821ec583959d78
Reviewed-on: https://go-review.googlesource.com/c/sys/+/393274
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 2022-03-17 06:14:57 +00:00
Tobias Klauser 039c03cc5b unix: add race annotations to Pread and Pwrite 
Follow CL 391954 which changed Pread/Pwrite in package syscall.

For golang/go#51618

Change-Id: Icc587c61f083886bb66ca96717f686f56b398e34
Reviewed-on: https://go-review.googlesource.com/c/sys/+/392794
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 2022-03-15 19:43:20 +00:00
Tobias Klauser 27bbf83dae windows: add race annotations to Windows ReadFile and WriteFile 
Follow CL 392774 which changed Windows ReadFile and WriteFile in package
syscall.

For golang/go#51618

Change-Id: I0f8046adb0f8145bd0775a3b5399647897cf19ce
Reviewed-on: https://go-review.googlesource.com/c/sys/+/392814
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 2022-03-15 18:05:22 +00:00
Tobias Klauser f2425489ef unix/linux: update to Go 1.18rc1 
The change in ztypes_linux_s390x.go is likely due to CL 350159.

Change-Id: Ib7080255f357d484ee708e128ac9a7ab408a6dc5
Reviewed-on: https://go-review.googlesource.com/c/sys/+/386955
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 2022-02-22 20:09:37 +00:00
Tobias Klauser b146bcec3b unix: remove accept on Linux 
Same as CL 386415 does for package syscall.

accept is no longer used on Linux since CL 347329 changed Accept to use
accept4 only.

For golang/go#45964

Change-Id: I9f431044c03e7f28c08152390ad71f45eddfe9dd
Reviewed-on: https://go-review.googlesource.com/c/sys/+/386954
Trust: Tobias Klauser <tobias.klauser@gmail.com>
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 2022-02-22 16:06:53 +00:00
Tobias Klauser 1c1b9b1eba unix/linux: update to glibc 2.35, Go 1.17.6 
Change-Id: I90b7eee499d6ed6ea431d2c8539aae5afa25cfab
Reviewed-on: https://go-review.googlesource.com/c/sys/+/383134
Trust: Tobias Klauser <tobias.klauser@gmail.com>
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 2022-02-04 13:58:22 +00:00
Tobias Klauser 99c3d69c2c unix: enable sysctl tests on netbsd 
Except for Getfsstat, all functions tested in syscall_bsd_test.go also
exist on netbsd. Move TestGetfsstat to a separate file so the other
tests can run on netbsd.

Change-Id: I63973e9c15a7f64c52b4edff034c03650658c4f6
Reviewed-on: https://go-review.googlesource.com/c/sys/+/381714
Trust: Tobias Klauser <tobias.klauser@gmail.com>
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 2022-01-28 21:58:02 +00:00
Tobias Klauser 5a964db013 windows: add Get{Active,Maximum}ProcesorCount 
Reference:
https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-getactiveprocessorcount
https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-getmaximumprocessorcount

Change-Id: Ifca711b82f112b395eac3b96266f63b5623881fc
Reviewed-on: https://go-review.googlesource.com/c/sys/+/374435
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 2022-01-11 09:28:08 +00:00
Tobias Klauser a018aaa089 unix/linux: update to Linux Kernel 5.16 
Change-Id: I83f84e8aa6f75fc2a6fd1744546e8dc3d5bc3a55
Reviewed-on: https://go-review.googlesource.com/c/sys/+/377134
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 2022-01-10 18:14:12 +00:00
Tobias Klauser af8b642124 unix: use pipe2 syscall in Pipe on NetBSD 
The pipe2 syscall is part of NetBSD since version 6.0 and thus exists in
all officially supported versions (6.0 through 6.1 and 7.0+).

Follows CL 94035 which did the same for package syscall.

Change-Id: Icfa7dfb13788c9a7425c641d0233b109e8c79e7f
Reviewed-on: https://go-review.googlesource.com/c/sys/+/370794
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 2021-12-10 11:16:14 +00:00
Tobias Klauser 94396e4217 windows: add ModuleEntry32 type and Module32{First,Next} wrappers 
Reference:
https://docs.microsoft.com/en-us/windows/win32/api/tlhelp32/ns-tlhelp32-moduleentry32w
https://docs.microsoft.com/en-us/windows/win32/api/tlhelp32/nf-tlhelp32-module32firstw
https://docs.microsoft.com/en-us/windows/win32/api/tlhelp32/nf-tlhelp32-module32nextw

Change-Id: I5455cabdbaa8e7e25490f869ca349e3c6f67a0cf
Reviewed-on: https://go-review.googlesource.com/c/sys/+/369174
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 2021-12-04 12:00:58 +00:00
Tobias Klauser 02f5c0300f unix: fix fsync for read-only files on aix 
On aix, the fsync syscall doesn't work on read-only files. Use
fsync_range instead to allow Fsync to work on any file.

Follow CL 254657 which did the same in package syscall.

For golang/go#41372

Change-Id: Ibc55ecf5c43e27a04281af1a204f847eeafeea63
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 2021-11-09 06:54:45 +00:00
Tobias Klauser e0b2ad06fe unix: fix finalizer fd close bug in TestOpenByHandleAt 
The raw fd is successively wrapped using os.NewFile, so dont defer close
the raw fd, but instead use (*os.File).Close.

Fixes golang/go#49403

Change-Id: I1f4b12536ff0abea6b1680a4ff932b7eefa57162
Reviewed-on: https://go-review.googlesource.com/c/sys/+/361995
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 2021-11-07 10:43:06 +00:00
Tobias Klauser ebca88c72f unix/linux: update Dockerfile to Go 1.17.3 
Change-Id: I14bced7165e0d3307950e922048cd38b1197f5fe
Reviewed-on: https://go-review.googlesource.com/c/sys/+/361994
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 2021-11-06 13:20:15 +00:00
Tobias Klauser c75c47738b unix, windows: copy arrays by assignment instead of looping 
Follow CL 360602 which did the same in package syscall.

Change-Id: Ibf6d86dea1cb118e869618c66da72da281adb2d7
Reviewed-on: https://go-review.googlesource.com/c/sys/+/361574
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 2021-11-05 18:34:46 +00:00
Tobias Klauser ae416a5f93 unix: regenerate type Clockinfo on OpenBSD 6.9 
OpenBSD 6.9 changed the definition of Clockinfo, leading
TestSysctlClockinfo to fail on OpenBSD 6.9 onwards. Since OpenBSD 6.8 is
no longer supported upstream, regenerate Clockinfo on that release and
test that SysctlClockInfo fails gracefully on OpenBSD 6.8 and earlier.

Fixes golang/go#47629
For golang/go#48977

Change-Id: Ia511b8601af11f70ffcce0f96764c69a67d626b8
Reviewed-on: https://go-review.googlesource.com/c/sys/+/360694
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Reviewed-by: Joel Sing <joel@sing.id.au>
 2021-11-03 18:47:34 +00:00
Tobias Klauser a2f17f7b99 unix: allow passing optional args to SysctlKinfoProcSlice 
This allows using SysctlKinfoProcSlice to e.g. query processes by user
id using the kern.proc.uid sysctl and is still backwards compatible to
original implementation, i.e. still allows the kern.proc.all sysctl
without any additional arguments.

Change-Id: Ia2d76ce5b91a077221891e1f2dfd79a38d2be52b
Reviewed-on: https://go-review.googlesource.com/c/sys/+/359677
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 2021-11-02 06:14:01 +00:00
Tobias Klauser 95da234e12 unix: add SysctlKinfoProc on darwin 
This allows to get KinfoProc for a given process using
SysctlKinfoProcSlice("kern.proc.pid", pid) rather than having to query
all processes using SysctlKinfoProcSlice() and the extracting the
relevant KinfoProc.

Change-Id: I965ea5c77d6f3441592b4540c54ab56f6ac9e27d
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 2021-11-02 06:13:51 +00:00
Tobias Klauser 39c9dd3799 unix/linux: update Dockerfile to Kernel 5.15 
Change-Id: I032465fbaecd49ffb6048577cd2f3fcb3d8e11d0
Reviewed-on: https://go-review.googlesource.com/c/sys/+/359678
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 2021-11-01 20:44:03 +00:00
Tobias Klauser 565ff80d9b unix: change darwin Eproc/ExternProc members from int8 array to byte array 
CL 328169 added Eproc and ExternProc types on darwin which have some
int8 array members containing human-readable strings. In order to make
it easier to convert these to Go strings, change them to byte arrays.

Change-Id: I200494fd90d8506bce0f52a039ea59703981c8d3
Reviewed-on: https://go-review.googlesource.com/c/sys/+/359674
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 2021-10-30 16:03:51 +00:00
Tobias Klauser 69cdffdb93 unix: use default directories in TestGetwd on darwin/arm64 
Go 1.16 renamed the iOS port from darwin/arm64 to ios/arm64 and
darwin/arm64 was repurposed for the macOS ARM64 port (see
https://golang.org/doc/go1.16#darwin).

Now that Go 1.16 is the oldest supported release, the ios tag can be
used exclusively to detect iOS and TestGetwd can use the same list of
directories as other systems.

For golang/go#45696

Change-Id: Ic334df5ea88ac034a9d9271f6cd570617f208f05
Reviewed-on: https://go-review.googlesource.com/c/sys/+/358254
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 2021-10-25 20:12:05 +00:00
Tobias Klauser 69063c4bb7 unix: test AF_VSOCK sockets on linux 
Follow the implementation of the tests added in CL 354269 for darwin.

Change-Id: I00701227dfb26169a356d875ddb3737849d0bba0
Reviewed-on: https://go-review.googlesource.com/c/sys/+/356289
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 2021-10-15 20:08:01 +00:00
Tobias Klauser b1ebd4e100 unix: enable Sysv shared memory support on darwin/arm64 
Keep it disabled on ios though.

For golang/go#45696
For golang/go#46084

Change-Id: I3d551227a4ebc0eebabdd16b175aa6a75ea9de19
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 2021-10-03 12:29:50 +00:00
Tobias Klauser 808efd93c3 cpu: enable TestARM64minimalFeatures on darwin/arm64 
Go 1.16 renamed the iOS port from darwin/arm64 to ios/arm64 and
darwin/arm64 was repurposed for the macOS ARM64 port (see
https://golang.org/doc/go1.16#darwin).

Now that Go 1.16 is the oldest supported release, the ios tag can be
used exclusively to detect iOS. Thus, TestARM64minimalFeatures which
ought to run on darwin/arm64 can now be enabled on that platform.

For golang/go#45696

Change-Id: Ic510fbf27dc813832507446201501df58c9f6f31
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 2021-10-02 10:42:44 +00:00
Tobias Klauser b1447f3f25 unix: enable TestPassFD and TestPoll on darwin/arm64 
Go 1.16 renamed the iOS port from darwin/arm64 to ios/arm64 and
darwin/arm64 was repurposed for the macOS ARM64 port (see
https://golang.org/doc/go1.16#darwin).

Now that Go 1.16 is the oldest supported release, the ios tag can be
used exclusively to detect iOS. Thus, TestPassFD and TestPoll which
ought to run on darwin/arm64 can now be enabled on that platform.

For golang/go#45696

Change-Id: I0b542af7a1b5ab194bf249d499c49e45bb55a2e1
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 2021-10-02 10:42:28 +00:00
Tobias Klauser b8560ed6a9 unix/linux: update Dockerfile to Go 1.17.1 
Change-Id: Iba0c7ce39221a0b9d7eaddd569bc6ea8ccceebd5
Reviewed-on: https://go-review.googlesource.com/c/sys/+/351429
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 2021-09-23 06:10:19 +00:00
Tobias Klauser 437939a702 unix: use dup3 in Dup2 on all Linux platforms 
The minimum required Linux kernel version for Go 1.18 will be changed to
2.6.32, see golang/go#45964. The dup3 syscall was added in 2.6.27, so it
can be used instead of the dup2 syscall which is not implemented on
arm64 and riscv64 or blocked on android.

For golang/go#45964

Change-Id: I9c677db4bae3ce441b258c49580fb9a2cd600436
Reviewed-on: https://go-review.googlesource.com/c/sys/+/350552
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 2021-09-21 06:55:28 +00:00
Tobias Klauser d61c044b16 unix: implement Pipe using pipe2 syscall on all linux platforms 
Most architectures currently already implement Pipe using the pipe2
syscall. Only 386, amd64, mips{,le}, ppc and sparc64 still use the pipe
syscall. However, some systems (e.g. Android seccomp policies) block
that syscall, see golang/go#40828 for an example.

The pipe2 syscall was added in Linux kernel version 2.6.27. The minimum
required Linux kernel version for Go 1.18 will be changed to 2.6.32
per golang/go#45964 so it is possible to unify the implementation of
Pipe using the pipe2 syscall.

Same as CL 350530 did for package syscall.

For golang/go#45964
Fixes golang/go#40828

Change-Id: I07d84d3ea06a54e37d9ff6b72702fe5d96efef7b
Reviewed-on: https://go-review.googlesource.com/c/sys/+/350549
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 2021-09-17 16:11:53 +00:00
Tobias Klauser ed5796bab1 unix: implement EpollCreate using EpollCreate1 on all linux platforms 
Most newer architectures (e.g. arm64 or riscv64) don't provide the
epoll_create syscall. Some systems (e.g. Android) block it even if it
were available. In the kernel, the epoll_create syscall is implemented
[1] the same way EpollCreate is implemented in this package for
platforms without the epoll_create syscall. Thus, avoid the separate
wrapper and consistently implement EpollCreate using EpollCreate1.

[1] https://elixir.bootlin.com/linux/v5.15-rc1/source/fs/eventpoll.c#L2006

Change-Id: I8ac11d0de939dafa4b1d189d97d350b9c324c3ab
Reviewed-on: https://go-review.googlesource.com/c/sys/+/349809
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 2021-09-15 08:33:10 +00:00
Tobias Klauser c212e73226 unix: add Landlock consts and types 
Change-Id: I5b8eee0594072e58951dd8b655058b96caeba497
Reviewed-on: https://go-review.googlesource.com/c/sys/+/348349
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 2021-09-08 14:30:11 +00:00
Tobias Klauser 6f6e22806c unix: implement InotifyInit using InotifyInit1 on all linux platforms 
Most newer architectures (e.g. arm64 or riscv64) don't provide the
inotify_init syscall and some systems (e.g. Android) block it even if it
were available. Internally, the inotify_init syscall is implemented
exactly like inotify_init1 [1], so there is no point in having a
separate wrapper on some platforms.

[1] https://elixir.bootlin.com/linux/v5.14.1/source/fs/notify/inotify/inotify_user.c#L704

Change-Id: Iae69de8e6cad1c6207fc0f521e275d94cdad3ca5
Reviewed-on: https://go-review.googlesource.com/c/sys/+/347869
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 2021-09-06 17:05:28 +00:00
Tobias Klauser 97244b9997 unix: drop fallback to accept in Accept on Linux 
Same as CL 346849 does for package syscall.

The minimum required Linux kernel version for Go 1.18 will be changed to
2.6.32, see golang/go#45964. The current minimum required version is
2.6.23 and accept4 was added in 2.6.28, so the fallback to accept in
Accept on Linux can be removed.

For golang/go#45964

Change-Id: Idf915d5a24cf570a2cfa0f0548c1841f3fc64d5a
Reviewed-on: https://go-review.googlesource.com/c/sys/+/347329
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 2021-09-03 07:17:46 +00:00
Tobias Klauser 2934436797 unix: drop fallback to inotifyInit in InotifyInit on linux/amd64 
The minimum required Linux kernel version for Go 1.18 will be changed to
2.6.32, see golang/go#45964. The current minimum required version is
2.6.23 and the inotify_init1 syscall was added in 2.6.27, so the
fallback to inotifyInit and inotifyInit itself can be removed on
linux/amd64.

For golang/go#45964

Change-Id: I8dc83ef04d74cfc9ec80da503076b9acfa9c365a
Reviewed-on: https://go-review.googlesource.com/c/sys/+/347330
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 2021-09-03 07:17:12 +00:00
Tobias Klauser 0a7ae4be8d unix: drop fallback to pipe in Pipe on linux/arm 
Same as CL 347349 does for package syscall.

The minimum required Linux kernel version for Go 1.18 will be changed to
2.6.32, see golang/go#45964. The pipe2 syscall was added in 2.6.27, so
the fallback to use the pipe syscall in syscall.Pipe on linux/arm can
be removed.

For golang/go#45964

Change-Id: I8e222dc4b373b22f91bc1ddcc48f58a37dafcffa
Reviewed-on: https://go-review.googlesource.com/c/sys/+/347331
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 2021-09-03 07:16:34 +00:00
Tobias Klauser 164ac21ac1 unix: drop fallback to utimes in UtimesNano on Linux 
Same as CL 346790 does for package syscall.

The minimum required Linux kernel version for Go 1.18 will be changed to
2.6.32, see golang/go#45964. The current minimum required version is
2.6.23 and utimensat was added in 2.6.22, so the fallback isn't even
necessary for the current minimum supported version. Remove the fallback
to utimes.

For golang/go#45964

Change-Id: Iaed782d182851c9ccff32f831e1704bae52662a6
Reviewed-on: https://go-review.googlesource.com/c/sys/+/346829
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 2021-09-02 05:02:39 +00:00
Tobias Klauser f4d43177bf unix/linux: update Dockerfile to Kernel 5.14 
Change-Id: Ie6b9521c70c0e91a507a923811f44f797b64e064
Reviewed-on: https://go-review.googlesource.com/c/sys/+/346029
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 2021-08-31 04:25:30 +00:00
Tobias Klauser f52c844e1c unix: add RTF_GLOBAL on darwin 
Fixes golang/go#45848

Change-Id: Iadd8499a66d5c5b7940df1477d88926f4b30cdb0
Reviewed-on: https://go-review.googlesource.com/c/sys/+/343509
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 2021-08-19 13:52:13 +00:00
Tobias Klauser 7d9622a276 unix/linux: update Dockerfile to Go 1.17 
Change-Id: Ic711a44c7ecf5d0ab5237a910c920f4b76873c57
Reviewed-on: https://go-review.googlesource.com/c/sys/+/342829
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 2021-08-17 14:26:37 +00:00
Tobias Klauser fcbd12d029 unix/linux: update Dockerfile to glibc 2.34 
No changes in generated files.

Change-Id: I83ffd002e070e350c2ec4026c9044a66a847e474
Reviewed-on: https://go-review.googlesource.com/c/sys/+/342569
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 2021-08-16 17:40:21 +00:00
Tobias Klauser b9628f2c71 unix: add missing RLIMIT_* consts on openbsd/{386,arm} 
Change-Id: I7e978beec3d63d407ffb97fb526ad0bc4ae4a03b
Reviewed-on: https://go-review.googlesource.com/c/sys/+/341069
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 2021-08-16 07:39:13 +00:00
Tobias Klauser 649d0fc2fc unix/linux: update Dockerfile to Go 1.17rc2 
Change-Id: Idc623480fd6a4a2c733fa2eec05091112421af2b
Reviewed-on: https://go-review.googlesource.com/c/sys/+/334530
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 2021-08-16 07:10:09 +00:00
Tobias Klauser 27a6752fd0 unix/linux: update Dockerfile to Kernel 5.13 
Fixes golang/go#47057

Change-Id: I47bc7491ed46afd76d4955c2843f2bb1295c672b
Reviewed-on: https://go-review.googlesource.com/c/sys/+/332969
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 2021-08-16 07:10:01 +00:00
Tobias Klauser b1c119fd70 unix: move ICMP{,V6}_FILTER* const definitions 
The C headers defining these constants pull in <netinet/in.h> which
leads to definition conflicts between kernel and glibc headers when
running mkerrors.sh for Linux kernel 5.13. Avoid these by moving this
const definitions to linux/types.go.

For golang/go#47057

Change-Id: I09a2391dfe4c6bb38b7069e952748070c10824e6
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 2021-08-16 07:09:50 +00:00
Tobias Klauser 7dc0b73dc9 unix: add SO_ORIGINAL_DST on linux 
Change-Id: I243a05696e061f0f0e558518c8af596364aa3668
Reviewed-on: https://go-review.googlesource.com/c/sys/+/331609
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 2021-06-29 17:03:31 +00:00
Tobias Klauser 665e8c7367 unix/linux: update Dockerfile to Go 1.17beta1 
Running `GOOS=linux GOARCH=amd64 ./mkall.sh` produces no changes, as
expected.

Change-Id: I09ec5243376fe76792d2b5e4984d8e2409dc7ce3
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 2021-06-15 03:50:16 +00:00
Tobias Klauser a4fc739902 unix: add AT_EACCESS and AT_REMOVEDIR on netbsd 
Change-Id: I1ef10228c858df6c3efe6c7543ce27f1c7984f8e
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 2021-06-11 08:36:46 +00:00
Tobias Klauser 1a9c977f74 unix: add AT_EACCESS on freebsd 
Change-Id: Ic6ac2335d5f831682ea61fc3b1276abd0a72a6af
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 2021-06-11 08:36:32 +00:00
Tobias Klauser 9f1793e2e2 unix: add AT_REMOVEDIR, AT_EACCESS and AT_SYMLINK_FOLLOW on dragonfly 
Change-Id: I2a3f4fb12ed3af1789af6115aecae62e61792549
Reviewed-on: https://go-review.googlesource.com/c/sys/+/326430
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 2021-06-11 08:36:19 +00:00
Tobias Klauser aa57babbf1 unix: add AT_REMOVEDIR and AT_EACCESS on openbsd 
Fixes golang/go#46342

Change-Id: Ia7d516b9024fed276e51f9b6f0d27025b89f59db
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 2021-06-08 05:33:32 +00:00
Tobias Klauser fdfd190a65 unix: remove darwin build tags from asm_bsd_{386,arm}.s 
CL 316769 dropped support for darwin/386 and darwin/arm. Remove the
respective build tags from asm_bsd_{386,arm}.s as well.

Change-Id: Ic7c64446aaf80298c2ae893e2103c394ace2b01c
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 2021-05-31 08:08:01 +00:00
Tobias Klauser b0526f3d87 cpu: set PPC64.IsPOWER8 for Power9 on aix 
This is in line with the behavior on linux.

Fixes golang/go#46040

Change-Id: I01ba1896d879425d12096ae67250d7e60beb7a99
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 2021-05-11 11:38:59 +00:00
Tobias Klauser 977fb72620 windows: add //go:build line to empty.s 
Change-Id: I715846360d6f889c64b59348e3483ecf8a99f428
Reviewed-on: https://go-review.googlesource.com/c/sys/+/318212
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 2021-05-10 12:01:38 +00:00
Tobias Klauser d19ff857e8 unix: on linux use accept4 in Accept, fall back to accept 
Android seems to block the accept syscall in newer versions. Use accept4
instead on kernel versions that support it (Linux 2.6.28 and newer) and
fall back to accept on ENOSYS.

Updates golang/go#45767

Change-Id: If557eaaaa0b69112bbe66ed820fbb382afb53b04
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 2021-04-26 23:07:00 +00:00
Tobias Klauser 413ae7eecf unix/linux: update Dockerfile to Kernel 5.12, Go 1.16.3 
Change-Id: I4e98e902508ad8bf0dede6c571bffed92611e02e
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 2021-04-26 23:06:21 +00:00
Tobias Klauser 8feff5de77 cpu: add //go:build lines to assembly files 
Change-Id: I44c0bab1cc8a3b7ce59a1c690cb22046bca32bac
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 2021-04-26 21:46:56 +00:00
Tobias Klauser 09eb48e85f unix: add //go:build lines to assembly files 
The zsyscall_darwin*.s files were regenerated using mksyscall.go. The
rest were updated manually, go fmt doesn't support formatting assembly
files.

Change-Id: I5efa23cb988300257de6bba4769e78c49a6382f1
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 2021-04-23 18:55:35 +00:00
Tobias Klauser 04245dca01 unix: add IPMreqn and {Get,Set}sockoptIPMreqn on darwin 
Change-Id: Id145cc8d86b71ff3ef603b5d0aae4bdd0e4c3f2b
Reviewed-on: https://go-review.googlesource.com/c/sys/+/312410
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 2021-04-23 08:28:22 +00:00
Tobias Klauser ac73e9fd89 unix: fix TestSCMCredentials after CL 272226 
After CL 42765 (*net.UnixConn).ReadMsgUnix returns flags with
MSG_CMSG_CLOEXEC set. Adjust TestSCMCredentials accordingly.

Change-Id: Id7da35bbd94c51433f5f27a0e04827795826c02e
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 2021-04-20 20:58:09 +00:00
Tobias Klauser 93ed5bcd2b unix: split linux ioctl wrappers into separate file 
Split all ioctl wrappers on linux into ioctl_linux.go and reorder them
so related ioctls are grouped together.

Change-Id: Iaf80993001ba3b4d4fa3096fed522cd9d339d21c
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 2021-04-20 07:25:15 +00:00
Tobias Klauser 37df388d1f unix: add MCAST_* on zos 
Copied from golang.org/x/net/ipv6. This will allow to replace the
socket option constants in that package with constants from x/sys/unix.

Change-Id: Ie0ce8ac7a927418df6f6e793d626c425a1cf48ec
Reviewed-on: https://go-review.googlesource.com/c/sys/+/307670
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 2021-04-19 17:01:43 +00:00
Tobias Klauser 66c3f26030 unix: don't defer close raw Socketpair fds in tests on darwin, freebsd and zos 
Follow up on three occurences missed in CL 309689.

The raw fds are successively wrapped using os.NewFile and will be closed
by (*os.File).Close. Avoids a double close, in the worst case closing an
unrelated fd.

Change-Id: Iffe4cc4f77db10237547915c362c4aeb20cc9630
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 2021-04-15 04:56:47 +00:00
Tobias Klauser fe65e336ab unix: don't defer close raw Socketpair fds in tests 
The raw fds are successively wrapped using os.NewFile and will be closed
by (*os.File).Close. Avoids a double close, in the worst case closing an
unrelated fd.

Same as CL 309353 does for package syscall.

Change-Id: I26dffc3fefa90d636cb67a904df0bfc3b131f702
Reviewed-on: https://go-review.googlesource.com/c/sys/+/309689
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 2021-04-14 05:50:47 +00:00
Tobias Klauser f1c623a9e7 unix: add EthtoolDrvinfo and IoctlGetEthtoolDrvinfo on linux 
Add type EthtoolDrvinfo and the type-safe IoctlGetEthtoolDrvinfo ioctl
wrapper func to retrieve it.

Change-Id: Ia514df89175939d9b0c2c4ddace621882e86b21a
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 2021-04-12 22:04:55 +00:00
Tobias Klauser 46babdb380 unix: add flags to SockaddrVM 
The Flags member was added to struct sockaddr_vm in Linux kernel 5.11
and successively into RawSockaddrVM when updating to that kernel version
in CL 291637. Add the flags to SockaddrVM as well.

While at it, also update the list of CID values with VMADDR_CID_LOCAL.

Change-Id: I08828136f4c5ded3cca2fd07aefac066b9977b13
Reviewed-on: https://go-review.googlesource.com/c/sys/+/308990
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 2021-04-12 22:03:33 +00:00
Tobias Klauser 43e1dd70ce unix: add ICMP6_FILTER on solaris 
Also add IP_RECVTOS and O_DIRECT which were generated when running
mkall.sh on SunOS openindiana 5.11.

The change in mkerrors.h is necessary to avoid lots of unnecessary
ICMP6_* consts being added on solaris.

Change-Id: Ica9a4b67f2d2d7916e65bcb600a5b2fa98edb80a
Reviewed-on: https://go-review.googlesource.com/c/sys/+/306249
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 2021-03-31 17:51:45 +00:00
Tobias Klauser 4fbd30eecc unix: add MCAST_* consts on freebsd/arm 
Change-Id: Iad1299fd440054c4522f0c7c96d2e0fb481685a6
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 2021-03-30 21:06:17 +00:00
Tobias Klauser 9b9b09a01a unix: add ICMP6_FILTER on zos 
Copied from golang.org/x/net/ipv6. This will allow to replace the
socket option constants in that package with constants from x/sys/unix.

Change-Id: I92a6ee9ffb4fbfcc66f1644b7677ac5bdf202367
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 2021-03-30 21:06:03 +00:00
Tobias Klauser 49726bf1d1 unix: add ICMPV6_FILTER_* consts on linux 
Change-Id: If626dab3c708d78768ae593b7b3f8bff280ee641
Reviewed-on: https://go-review.googlesource.com/c/sys/+/305049
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 2021-03-26 22:08:04 +00:00
Tobias Klauser 47abb65194 unix: add RFC3542 IPv6 socket option constants on darwin 
Change-Id: I7056c1d8805c080e50d832b5d6a3e3323f692525
Reviewed-on: https://go-review.googlesource.com/c/sys/+/303929
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 2021-03-24 05:16:08 +00:00
Tobias Klauser 1e4c9ba3b0 unix: add ICMP_FILTER constant on linux 
Change-Id: I9ce0932c28ae8634270d69b0bd23216e963cc105
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 2021-03-20 14:08:29 +00:00
Tobias Klauser 77fc1eacc6 unix: unify Syscall{,6,9} and RawSyscall{,6} on BSD 
These all just jump to the respective implementation in package syscall.

Change-Id: Ie1c0438d983c8d78dc780487bb866760460f1ce1
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 2021-03-16 16:44:54 +00:00
Tobias Klauser 0b90fd5c4c unix/linux: update Dockerfile to Go 1.16.2 
Change-Id: I263e0ed034ded3ef8cf9bd9745d9095067cc3a25
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 2021-03-16 09:29:37 +00:00
Tobias Klauser c6e025ad80 windows: add IP_HDRINCL, IP_PKTINFO, IPV6_PKTINFO 
These will be used to replace the respective local definitions in
the golang.org/x/net package.

Change-Id: Ieae8908a87ee7df1ca43683e7e921128bff90b8d
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 2021-03-15 16:08:23 +00:00
Tobias Klauser 68d13333fa unix: add //go:build lines when generating files 
The //+go:build lines were added by running Go 1.17 gofmt in CL 294490.
Make sure to retain them when re-generating files in this package.

For golang/go#41184.

Change-Id: Ia418b8c0eb4291a0db3f4bb97685bde78d0ff016
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 2021-03-09 07:47:19 +00:00
Tobias Klauser 88b6017d06 unix: don't fail TestPoll on EINTR from Poll 
Occassionaly TestPoll fails on some builders due to Poll getting
interrupted:

--- FAIL: TestPoll (0.00s)
    syscall_unix_test.go:516: Poll: unexpected error: interrupted system call
FAIL
FAIL	golang.org/x/sys/unix	0.956s

Fix this by retrying Poll in case of EINTR, same as CL 207861 did in
TestSelect.

Change-Id: I78ada14d7409e6cde852d76abd5a9a1b1bb645d2
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 2021-03-08 17:07:21 +00:00