Part 1: CL 199499 (GOOS nacl)
Part 2: CL 200077 (amd64p32 files, toolchain)
Part 3: stuff that arguably should've been part of Part 2, but I forgot
one of my grep patterns when splitting the original CL up into
two parts.
This one might also have interesting stuff to resurrect for any future
x32 ABI support.
Updates #30439
Change-Id: I2b4143374a253a003666f3c69e776b7e456bdb9c
Reviewed-on: https://go-review.googlesource.com/c/go/+/200318
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This is part two if the nacl removal. Part 1 was CL 199499.
This CL removes amd64p32 support, which might be useful in the future
if we implement the x32 ABI. It also removes the nacl bits in the
toolchain, and some remaining nacl bits.
Updates #30439
Change-Id: I2475d5bb066d1b474e00e40d95b520e7c2e286e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/200077
Reviewed-by: Ian Lance Taylor <iant@golang.org>
You were a useful port and you've served your purpose.
Thanks for all the play.
A subsequent CL will remove amd64p32 (including assembly files and
toolchain bits) and remaining bits. The amd64p32 removal will be
separated into its own CL in case we want to support the Linux x32 ABI
in the future and want our old amd64p32 support as a starting point.
Updates #30439
Change-Id: Ia3a0c7d49804adc87bf52a4dea7e3d3007f2b1cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/199499
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reimplement syscall wrappers for linux/arm64 in terms of supported
syscalls (or in case of Ustat make it return ENOSYS) and remove the
manually added SYS_* consts for the deprecated syscalls. Adapted from
golang.org/x/sys/unix where this is already done since CL 119655.
Change-Id: I94ab48a4645924df3822497d0575f1a1573d509f
Reviewed-on: https://go-review.googlesource.com/c/go/+/199140
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
When running wasm in the browser, the "process" global is not defined.
This causes functions like os.Getpid() to panic, which is unusual.
For example on Windows os.Getpid() returns -1 and does not panic.
This change adds a dummy polyfill for "process" which returns -1 or an
error. It also extends the polyfill for "fs".
Fixes#34627
Replaces CL 199357
Change-Id: Ifeb12fe7e152c517848933a9ab5f6f749896dcef
Reviewed-on: https://go-review.googlesource.com/c/go/+/199698
Run-TryBot: Richard Musiol <neelance@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Updates #34388
Change-Id: I327a1c1557c47fa6c113c7a1a507a8e7355f9d1a
Reviewed-on: https://go-review.googlesource.com/c/go/+/199277
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
We replace the existing file with a thin wrapper around its target so
that we don't break anybody's workflow.
Updates #34388
Change-Id: I0d00371c483cb78f4be18fe987df33c79cd40f05
Reviewed-on: https://go-review.googlesource.com/c/go/+/198977
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Update the list of expected "id" outputs in
TestGroupCleanupUserNamespace with SELinux context information as used
on CentOS.
Fixes#34547
Change-Id: I426bbe2d04e2039c87490362a1891ec3de6e36e0
Reviewed-on: https://go-review.googlesource.com/c/go/+/197841
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
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Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TestAmbientCapsUserns also needs to be skipped, e.g. in case the test is
run inside a chroot.
Updates #34015
Change-Id: I53913432fe9408217edfe64619adbfd911a51a7a
Reviewed-on: https://go-review.googlesource.com/c/go/+/196500
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Windows type PBOOL is a pointer to a 4 byte value, where 0 means false
and not-0 means true. That means we should use uint32 here, not bool,
since Go bools can be 1 byte. Since a *bool is never a "real" valid
Windows type, converting on both in and out is probably sufficient,
since *bool shouldn't ever be used as something with significance for
its particular address.
Updates: #34364
Change-Id: I4c1b91cd9a39d91e23dae6f894b9a49f7fba2c0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/196122
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Zeroing unused registers is not required. Removing it makes the code
very slightly smaller and very slightly faster.
Change-Id: I1ec17b497db971ca8a3641e3e94c063571419f27
GitHub-Last-Rev: f721bb2636
GitHub-Pull-Request: golang/go#31596
Reviewed-on: https://go-review.googlesource.com/c/go/+/173160
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This allows the use of CLONE_VFORK and CLONE_VM for fork/exec, preventing
"fork/exec ...: cannot allocate memory" failures from occuring when attempting
to execute commands from a Go process that has a large memory footprint.
Additionally, this should reduce the latency of fork/exec on linux/arm64.
With CLONE_VM the child process shares the same memory with the parent
process. On its own this would lead to conflicting use of the same
memory, so CLONE_VFORK is used to suspend the parent process until the
child releases the memory when switching to the new program binary
via the exec syscall. When the parent process continues to run, one
has to consider the changes to memory that the child process did,
namely the return address of the syscall function needs to be restored
from a register.
exec.Command() callers can start in a faster manner, as child process who
do exec commands job can be cloned faster via vfork than via fork on arm64.
The same problem was addressed on linux/amd64 via issue #5838.
Updates #31936
Contributed by Howard Zhang <howard.zhang@arm.com> and Bin Lu <bin.lu@arm.com>
Change-Id: Ia99d81d877f564ec60d19f17e596276836576eaf
Reviewed-on: https://go-review.googlesource.com/c/go/+/189418
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Call the Nano methods of Timespec and Timeval in TimespecToNsec and
TimevalToNsec respectively, instead of duplicating the implementation.
Change-Id: I17551ea54c59c1e45ce472e029c625093a67251a
GitHub-Last-Rev: fecf43d163
GitHub-Pull-Request: golang/go#33390
Reviewed-on: https://go-review.googlesource.com/c/go/+/188397
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
If the faketime build tag is set, this causes syscall.Write for FDs 1
and 2 to redirect to runtime.write, since that's where we'll apply the
faketime framing. This is equivalent to what nacl currently does in
naclFile.write.
We do this on all of the platforms except nacl, which has its own
faketime support and we're about to remove, and Windows, which would
require other changes to support faketime so we're leaving alone for
now.
Updates #30439.
Change-Id: I138a5ca63577d92d15b5437d037bd3159fa84ee7
Reviewed-on: https://go-review.googlesource.com/c/go/+/192739
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This matches the existing behavior of treating CTRL_C_EVENT, CTRL_BREAK_EVENT as a synthesized SIGINT event.
See https://docs.microsoft.com/en-us/windows/console/handlerroutine for a good documentation source upstream to confirm these values.
As for the usage of these events, the "Timeouts" section of that upstream documentation is important to note, especially the limited window in which to do any cleanup before the program will be forcibly killed (defaults typically 5s, but as low as 500ms, and in many cases configurable system-wide).
These events are especially relevant for Windows containers, where these events (particularly `CTRL_SHUTDOWN_EVENT`) are one of the only ways containers can "gracefully" shut down (https://github.com/moby/moby/issues/25982#issuecomment-466804071).
This was verified by making a simple `main()` which implements the same code as in `ExampleNotify_allSignals` but in a `for` loop, building a `main.exe`, running that in a container, then doing `docker kill -sTERM` on said container. The program prints `Got signal: SIGTERM`, then exits after the aforementioned timeout, as expected. Behavior before this patch is that the program gets no notification (and thus no output) but still exits after the timeout.
Fixes#7479
Change-Id: I2af79421cd484a0fbb9467bb7ddb5f0e8bc3610e
GitHub-Last-Rev: 9e05d631b5
GitHub-Pull-Request: golang/go#33311
Reviewed-on: https://go-review.googlesource.com/c/go/+/187739
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
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Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
On linux/riscv64, the renameat syscall no longer exists and has been
superseded by renameat2. Thus we'll have to use Renameat2 to implement
Renameat on linux/riscv64 for #27532. Prepare for this by moving the
Renameat definition to the GOARCH specific files.
Follow CL 157899 which did the same for golang.org/x/sys/unix
Change-Id: I9670213cc3987df48fee962ddee36915a7785560
Reviewed-on: https://go-review.googlesource.com/c/go/+/192077
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
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Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
- Add doc to syscall.Errno (and syscall.ErrorString for plan9).
- Mention under `syscall` in release notes.
Fixes#33436.
Change-Id: I032ffebaa76ed67eb9d748e7645ca73f26144ea0
Reviewed-on: https://go-review.googlesource.com/c/go/+/191337
Reviewed-by: Ian Lance Taylor <iant@golang.org>
It is unclear whether the current definition of os.IsTimeout is
desirable or not. Drop ErrTimeout for now so we can consider adding it
(or some other error) in a future release with a corrected definition.
Fixes#33411
Change-Id: I8b880da7d22afc343a08339eb5f0efd1075ecafe
Reviewed-on: https://go-review.googlesource.com/c/go/+/188758
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
As discussed in
https://github.com/golang/go/issues/32463#issuecomment-506833421
the classification of deadline-based timeouts as "temporary" errors is a
historical accident. I/O timeouts used to be duration-based, so they
really were temporary--retrying a timed-out operation could succeed. Now
that they're deadline-based, timeouts aren't temporary unless you reset
the deadline.
Drop ErrTemporary from Go 1.13, since its definition is wrong. We'll
consider putting it back in Go 1.14 with a clear definition and
deprecate net.OpError.Temporary.
Fixes#32463
Change-Id: I70cda664590d8872541e17409a5780da76920891
Reviewed-on: https://go-review.googlesource.com/c/go/+/188398
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Don't attempt to dereference basep if it's nil, just pass it to
getdirentries_freebsd12 as is.
Ported from x/sys/unix CL 183223
Change-Id: Id1c4e0eb6ff36dd39524da8194fed9a5957bce61
Reviewed-on: https://go-review.googlesource.com/c/go/+/183797
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Fixes the test on the linux-arm64-packet builder.
Change-Id: Icaf9edf9542f4f6e3791ca43298a1e7051eaa576
Reviewed-on: https://go-review.googlesource.com/c/go/+/182378
Run-TryBot: Elias Naur <mail@eliasnaur.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
It is forbidden by App Store.
Fixes#31628
Change-Id: Ie6d14a524ee55b57af8db685f3a79f474733add5
Reviewed-on: https://go-review.googlesource.com/c/go/+/182297
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
On freebsd 12, the system call for getdirentries writes 64 bits to
*basep, even on 32-bit systems. Accomodate that by providing a uint64
to the system call and copy the base to/from that uint64.
The uint64 seems to be a virtual file offset, so failing if the high
bits are not zero should be fine for reasonable-sized directories.
Fixes#32498
Change-Id: Ie22c0d301c6091bd20e813432928b24ab95cc314
Reviewed-on: https://go-review.googlesource.com/c/go/+/181377
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
The documentation comment was duplicated for each of these methods, and
the LazyProc.Call documentation incorrectly mentioned that Call accepts
only 15 arguments, but it actually accepts 18 now.
To prevent further documentation drift, refer the reader to the
documentation for Proc.Call instead of duplicating it for LazyProc.Call.
In addition, note that LazyProc's Addr, Call, and Find methods each
trigger a procedure lookup.
Change-Id: I6756cf7601fba79d1414ff5a5d6eef900aa590e7
Reviewed-on: https://go-review.googlesource.com/c/go/+/181199
Run-TryBot: Matt Layher <mdlayher@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This is a follow up CL of CL 180877:
It will skip test create user namespaces under 3 conditions:
1. sysctl file is missing
2. file reads nothing
3. user don't have permission to create namespaces
Change-Id: I25f00a6b67213bf98d654972388637789978e1fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/180937
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
The original test (CL 166460) didn't check the existence of
/proc/sys/kernel/unprivileged_userns_clone and continue the test
if the file doesn't exist.
Fixes#32459
Change-Id: Iab4938252fcaded32b61e17edf68f966c2565582
Reviewed-on: https://go-review.googlesource.com/c/go/+/180877
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
As js.TypedArray no longer exists, the comment should be updated.
Change-Id: Idd1087c8007afc90307fdd965f28d3be8d8cd73e
Reviewed-on: https://go-review.googlesource.com/c/go/+/180097
Reviewed-by: Richard Musiol <neelance@gmail.com>
On unix if exec.Command() is given both ExtraFiles and Ctty, and the
Ctty file descriptor overlaps the range of FDs intended for the child,
then cmd.Start() the ioctl(fd,TIOCSCTTY) call fails with an
"inappropriate ioctl for device" error.
When child file descriptors overlap the new child's ctty the ctty will
be closed in the fd shuffle before the TIOCSCTTY. Thus TIOCSCTTY is
used on one of the ExtraFiles rather than the intended Ctty file. Thus
the error.
exec.Command() callers can workaround this by ensuring the Ctty fd is
larger than any ExtraFiles destined for the child.
Fix this by doing the ctty ioctl before the fd shuffle.
Test for this issue by modifying TestTerminalSignal to use more
ExtraFiles. The test fails on linux and freebsd without this change's
syscall/*.go changes. Other platforms (e.g. darwin, aix, solaris) have
the same fd shuffle logic, so the same fix is applied to them. However,
I was only able to test on linux (32 and 64 bit) and freebsd (64 bit).
Manual runs of the test in https://golang.org/issue/29458 start passing
with this patch:
Before:
% /tmp/src/go/bin/go run t
successfully ran child process with ParentExtraFileFdNum=5, ChildExtraFileFd=6, ParentPtyFd=7
panic: failed to run child process with ParentExtraFileFdNum=10, ChildExtraFileFd=11, ParentPtyFd=11: fork/exec /bin/true: inappropriate ioctl for device
After:
% /tmp/src/go/bin/go run t
successfully ran child process with ParentExtraFileFdNum=5, ChildExtraFileFd=6, ParentPtyFd=7
successfully ran child process with ParentExtraFileFdNum=10, ChildExtraFileFd=11, ParentPtyFd=11
Fixes#29458
Change-Id: I99513de7b6073c7eb855f1eeb4d1f9dc0454ef8b
Reviewed-on: https://go-review.googlesource.com/c/go/+/178919
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
The typed arrays returned by TypedArrayOf were backed by WebAssembly
memory. They became invalid each time we grow the WebAssembly memory.
This made them very error prone and hard to use correctly.
This change removes TypedArrayOf completely and instead introduces
CopyBytesToGo and CopyBytesToJS for copying bytes between a byte
slice and an Uint8Array. This breaking change is still allowed for
the syscall/js package.
Fixes#31980.
Fixes#31812.
Change-Id: I14c76fdd60b48dd517c1593972a56d04965cb272
Reviewed-on: https://go-review.googlesource.com/c/go/+/177537
Run-TryBot: Richard Musiol <neelance@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Shorten some of the longest tests that run during all.bash.
Removes 7r 50u 21s from all.bash.
After this change, all.bash is under 5 minutes again on my laptop.
For #26473.
Change-Id: Ie0460aa935808d65460408feaed210fbaa1d5d79
Reviewed-on: https://go-review.googlesource.com/c/go/+/177559
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This allows the use of CLONE_VFORK and CLONE_VM for fork/exec, preventing
"fork/exec ...: cannot allocate memory" failures from occuring when attempting
to execute commands from a Go process that has a large memory footprint.
Additionally, this should reduce the latency of fork/exec on these platforms.
The same problem was addressed on linux/amd64 via issue #5838.
Updates #31936
Change-Id: I7ae0fbbeaa29cab944a49a11272a380d497eb2d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/175697
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Working toward making the tree vet-safe instead of having
so many exceptions in cmd/vet/all/whitelist.
This CL makes "go vet -unsafeptr=false runtime" happy for these GOOSes,
while keeping "GO_BUILDER_NAME=misc-vetall go tool dist test" happy too.
For #31916.
Change-Id: Id2e1223497bd0cd6e880cd81f3ece6363e58219f
Reviewed-on: https://go-review.googlesource.com/c/go/+/176104
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
These are unused since CL 153837. illumos64Bit was added by CL 174457
but was never used.
Change-Id: I34a1bd41cf70f8a07e57f93a71de3c6034fcaf7b
Reviewed-on: https://go-review.googlesource.com/c/go/+/175358
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The underlying buffer of a typed array becomes invalid as soon as we
grow the WebAssembly memory, which can happen at any time while Go code
runs. This is a known limitation, see https://golang.org/cl/155778.
As a consequence, using a typed array with one of the asynchronous
read/write operations of Node.js' fs module is dangerous, since it may
become invalid while the asynchronous operation has not finished yet.
The result of this situation is most likely undefined.
I am not aware of any nice solution to this issue, so this change adds
a workaround of using an additional typed array which is not backed by
WebAssembly memory and copying the bytes between the two typed arrays.
Maybe WebAssembly will come up with a better solution in the future.
Fixes#31702.
Change-Id: Iafc2a0fa03c81db414520bd45a1a17c00080b61e
Reviewed-on: https://go-review.googlesource.com/c/go/+/174304
Run-TryBot: Richard Musiol <neelance@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Like GOOS=android which implies the "linux" build tag, GOOS=illumos
implies the "solaris" build tag. This lets the existing ecosystem of
packages still work on illumos, but still permits packages to start
differentiating between solaris and illumos.
Fixes#20603
Change-Id: I8f4eabf1a66060538dca15d7658c1fbc6c826622
Reviewed-on: https://go-review.googlesource.com/c/go/+/174457
Run-TryBot: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Matthew Dempsky
Brad Fitzpatrick
Tobias Klauser
Richard Musiol
Alex Brainman
Jason A. Donenfeld
Maya Rashish
Howard Zhang
Keisuke Kishimoto
Elias Naur
Austin Clements
micnncim
Clément Chigot
Tianon Gravi
Agniva De Sarker
Jonathan Amsterdam
Keith Randall
Damien Neil
Keith Randall
Matt Layher
Meng Zhuo
Hajime Hoshi
Greg Thelen
Russ Cox
Joel Sing
Joshua M. Clulow