xinlingchao [Mon, 28 Dec 2020 06:14:41 +0000 (14:14 +0800)]
io/fs: fix typo in comment
Change-Id: Idf8e5d808c0996e0ca00979e7b8d7627f29cd10f
Reviewed-on: https://go-review.googlesource.com/c/go/+/280552 Reviewed-by: Alberto Donizetti <alb.donizetti@gmail.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Alberto Donizetti <alb.donizetti@gmail.com>
Elias Naur [Fri, 25 Dec 2020 10:14:11 +0000 (11:14 +0100)]
runtime/cgo: fix Android build with NDK 22
Fixes #42655
Change-Id: I7d2b70098a4ba4dcb325fb0be076043789b86135
Reviewed-on: https://go-review.googlesource.com/c/go/+/280312
Run-TryBot: Elias Naur <mail@eliasnaur.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Elias Naur <mail@eliasnaur.com>
Ian Lance Taylor [Wed, 23 Dec 2020 22:01:12 +0000 (14:01 -0800)]
net/mail: don't use MDT in test
When time.Parse sees a timezone name that matches the local timezone,
it uses the local timezone. The tests weren't expecting that,
so using MDT broke with TZ=America/Boise (where MDT means Mountain
Daylight Time). Just use GMT instead.
Fixes #43354
Change-Id: Ida70c8c867e2568b1535d1dfbf1fb0ed9e0e5c1e
Reviewed-on: https://go-review.googlesource.com/c/go/+/280072
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Michael Anthony Knyszek [Tue, 22 Dec 2020 17:47:43 +0000 (17:47 +0000)]
runtime: shift timeHistogram buckets and allow negative durations
Today, timeHistogram, when copied, has the wrong set of counts for the
bucket that should represent (-inf, 0), when in fact it contains [0, 1).
In essence, the buckets are all shifted over by one from where they're
supposed to be.
But this also means that the existence of the overflow bucket is wrong:
the top bucket is supposed to extend to infinity, and what we're really
missing is an underflow bucket to represent the range (-inf, 0).
We could just always zero this bucket and continue ignoring negative
durations, but that likely isn't prudent.
timeHistogram is intended to be used with differences in nanotime, but
depending on how a platform is implemented (or due to a bug in that
platform) it's possible to get a negative duration without having done
anything wrong. We should just be resilient to that and be able to
detect it.
So this change removes the overflow bucket and replaces it with an
underflow bucket, and timeHistogram no longer panics when faced with a
negative duration.
Fixes #43328.
Fixes #43329.
Change-Id: If336425d7d080fd37bf071e18746800e22d38108
Reviewed-on: https://go-review.googlesource.com/c/go/+/279468
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Michael Knyszek <mknyszek@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>
Michael Anthony Knyszek [Tue, 22 Dec 2020 16:23:29 +0000 (16:23 +0000)]
runtime: fix allocs-by-size and frees-by-size buckets
Currently these two metrics are reported incorrectly, going by the
documentation in the runtime/metrics package. We just copy in the
size-class-based values from the runtime wholesale, but those implicitly
have an inclusive upper-bound and exclusive lower-bound (e.g. 48-byte
size class contains objects in the size range (32, 48]) but the API
declares inclusive lower-bounds and exclusive upper-bounds.
Also, the bottom bucket representing (-inf, 1) should always be empty.
Extend the consistency check to verify this.
Updates #43329.
Change-Id: I11b5b062a34e13405ab662d15334bda91f779775
Reviewed-on: https://go-review.googlesource.com/c/go/+/279467
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Michael Knyszek <mknyszek@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>
Change-Id: I709abe899ca498698463e945ccbcf4bc5fe60b92
Reviewed-on: https://go-review.googlesource.com/c/go/+/279794
Trust: Alberto Donizetti <alb.donizetti@gmail.com>
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Andrey Bokhanko [Mon, 21 Dec 2020 16:33:55 +0000 (16:33 +0000)]
doc: fix a typo in contribute.html
A fix for a trivial (yet still confusing for neophytes like me!) typo in
contribute.html.
Change-Id: Ic68673fb2a3855c2b9e8042047087450e8793e6b
Reviewed-on: https://go-review.googlesource.com/c/go/+/279452 Reviewed-by: Ian Lance Taylor <iant@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Jay Conrod [Wed, 16 Dec 2020 21:37:56 +0000 (16:37 -0500)]
cmd/go: in 'go get', promote named implicit dependencies to explicit
'go get pkg@vers' will now add an explicit requirement for the module
providing pkg if that version was already indirectly required.
'go get mod@vers' will do the same if mod is a module path but not a
package.
Requirements promoted this way will be marked "// indirect" because
'go get' doesn't know whether they're needed to build packages in the
main module. So users should prefer to run 'go get ./pkg' (where ./pkg
is a package in the main module) to promote requirements.
Fixes #43131
Change-Id: Ifbb65b71274b3cc752a7a593d6ddd875f7de23b8
Reviewed-on: https://go-review.googlesource.com/c/go/+/278812
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Jay Conrod <jayconrod@google.com> Reviewed-by: Bryan C. Mills <bcmills@google.com>
Andrew G. Morgan [Sat, 12 Dec 2020 06:42:11 +0000 (22:42 -0800)]
os/signal: fix a deadlock with syscall.AllThreadsSyscall() use
The syscall.AllThreadsSyscall() fixup mechanism needs to cooperate
with signal handling to ensure a notetsleepg() thread can wake up
to run the mDoFixup() function.
Fixes #43149
Change-Id: I6651b25bc44a4de47d3fb71d0293d51aef8b79c7
Reviewed-on: https://go-review.googlesource.com/c/go/+/277434
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Austin Clements <austin@google.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Andrew G. Morgan [Fri, 13 Nov 2020 05:19:52 +0000 (21:19 -0800)]
runtime: linux iscgo support for not blocking nptl signals
Under linux+cgo, OS threads are launched via pthread_create().
This abstraction, under linux, requires we avoid blocking
signals 32,33 and 34 indefinitely because they are needed to
reliably execute POSIX-semantics threading in glibc and/or musl.
When blocking signals the go runtime generally re-enables them
quickly. However, when a thread exits (under cgo, this is
via a return from mstart()), we avoid a deadlock in C-code by
not blocking these three signals.
Fixes #42494
Change-Id: I02dfb2480a1f97d11679e0c4b132b51bddbe4c14
Reviewed-on: https://go-review.googlesource.com/c/go/+/269799 Reviewed-by: Ian Lance Taylor <iant@golang.org> Reviewed-by: Austin Clements <austin@google.com>
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Jay Conrod [Tue, 22 Dec 2020 21:57:46 +0000 (16:57 -0500)]
cmd/go/internal/modload: add hint for missing implicit dependency
By default (and with -mod=readonly), the go command imports an error
if a package provided by an implicitly required module is
imported by a package in the main module. This import requires an
update to go.mod: the module must be required explicitly.
The package loader now provides a hint that 'go get' should be run on
the importing package. This is preferred to 'go get' on the imported
package, since that would add an "// indirect" requirement.
For #43131
Change-Id: I0b353ce8ac8c4ddf1a9863544dfaf6c1964daf42
Reviewed-on: https://go-review.googlesource.com/c/go/+/279528
Trust: Jay Conrod <jayconrod@google.com>
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Bryan C. Mills <bcmills@google.com>
Jason A. Donenfeld [Sun, 8 Nov 2020 10:57:42 +0000 (11:57 +0100)]
cmd/link: handle grouped resource sections
The Go PE linker does not support enough generalized PE logic to
properly handle .rsrc sections gracefully. Instead a few things are
special cased for these. The linker also does not support PE's "grouped
sections" features, in which input objects have several named sections
that are sorted, merged, and renamed in the output file. In the past,
more sophisticated support for resources or for PE features like grouped
sections have not been necessary, as Go's own object formats are pretty
vanilla, and GNU binutils also produces pretty vanilla objects where all
sections are already merged.
However, GNU binutils is lagging with arm support, and here LLVM has
picked up the slack. In particular, LLVM has its own rc/cvtres combo,
which are glued together in mingw LLVM distributions as windres, a
command line compatible tool with binutils' windres, which supports arm
and arm64. But there's a key difference between binutils' windres and
LLVM's windres: the LLVM one uses proper grouped sections.
So, this commit adds grouped sections support for resource sections to
the linker. We don't attempt to plumb generic support for grouped
sections, just as there isn't generic support already for what resources
require. Instead we augment the resource handling logic to deal with
standard two-section resource objects.
We also add a test for this, akin to the current test for more vanilla
binutils resource objects, and make sure that the rsrc tests are always
performed.
Fixes #42866.
Fixes #43182.
Change-Id: I059450021405cdf2ef1c195ddbab3960764ad711
Reviewed-on: https://go-review.googlesource.com/c/go/+/268337
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
Trust: Alex Brainman <alex.brainman@gmail.com>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Cherry Zhang [Mon, 21 Dec 2020 23:41:16 +0000 (18:41 -0500)]
test: trigger SIGSEGV instead of SIGTRAP in issue11656.go
In issue11656.go, it tests that if the runtime can get a
reasonable traceback when it faults at a non-function PC. It does
it by jumping to an address that contains an illegal or trap
instruction. When it traps, the SIGTRAP crashes the runtime.
This CL changes it to use an instruction that triggers SIGSEGV.
This is due to two reasons:
- currently, the handling of bad PC is done by preparePanic,
which is only used for a panicking signal (SIGSEGV, SIGBUS,
SIGFPE), not a fatal signal (e.g. SIGTRAP).
- the test uses defer+recover to get a traceback, which only
works for panicking signals, not fatal signals.
Ideally, we should handle all kinds of faults (SIGSEGV, SIGBUS,
SIGILL, SIGTRAP, etc.) with a nice traceback. I'll leave this
for the future.
This CL also adds RISCV64 support.
Fixes #43283.
Change-Id: I5e0fbf8530cc89d16e05c3257d282bc1d4d03405
Reviewed-on: https://go-review.googlesource.com/c/go/+/279423
Trust: Cherry Zhang <cherryyz@google.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Nikhil Benesch [Wed, 9 Dec 2020 20:14:59 +0000 (15:14 -0500)]
runtime: correct error handling in several FreeBSD syscall wrappers
The FreeBSD syscall convention uses the carry flag to indicate whether
an error has occured. The sys_umtx_op, thr_new, and pipe2 syscall
wrappers were failing to account for this convention and silently
suppressing errors as a result. This commit corrects these wrappers
by copying the pattern used by the other fallible syscall wrappers.
Note that futexsleep1 must now explicitly ignore the ETIMEDOUT error
from sys_umtx_op. Previously ETIMEDOUT was implicitly ignored because
sys_umtx_op never returned an error.
Fixes #43106.
Change-Id: I9c422b87cf4c6d308003bf42c3b419f785578b5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/276892
Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Austin Clements <austin@google.com>
Trust: Than McIntosh <thanm@google.com>
Cherry Zhang [Mon, 21 Dec 2020 19:11:02 +0000 (14:11 -0500)]
cmd/pack: treat compiler's -linkobj output as "compiler object"
Treat the compiler's -linkobj output as "compiler object, which
means "pack c" will "see through" the file and add individual
entry to the new archive, instead of the object as a whole.
This is somewhat peculiar. But Go 1.15's cmd/pack does this,
although seemingly accidental. We just do the same. FWIW, it
does make things more consistent with/without -linkobj flag.
Fixes #43271.
Change-Id: I6b2d99256db7ebf0fa430f85afa7464e334f6bcb
Reviewed-on: https://go-review.googlesource.com/c/go/+/279483
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com> Reviewed-by: Jeremy Faller <jeremy@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
Michael Anthony Knyszek [Mon, 7 Dec 2020 15:11:46 +0000 (15:11 +0000)]
runtime/metrics: add Read examples
This change adds two examples of using the Read function: one that reads
one metric and one that reads all metrics.
Change-Id: I4940a44c9b1d65f3f7a1554e3145ff07e6492fc1
Reviewed-on: https://go-review.googlesource.com/c/go/+/275855
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Michael Pratt <mpratt@google.com>
Trust: Michael Knyszek <mknyszek@google.com>
Cherry Zhang [Thu, 12 Nov 2020 02:27:56 +0000 (21:27 -0500)]
runtime: use _exit on darwin
On darwin, where we use libc for syscalls, when the runtime exits,
it calls libc exit function, which may call back into user code,
e.g. invoking functions registered with atexit. In particular, it
may call back into Go. But at this point, the Go runtime is
already exiting, so this wouldn't work.
On non-libc platforms we use exit syscall directly, which doesn't
invoke any callbacks. Use _exit on darwin to achieve the same
behavior.
No test for now, as it doesn't pass on all platforms (see trybot
run of PS2).
May fix #42465.
May fix #43294.
Change-Id: Ia1ada22b5da8cb64fdd598d0541eb90e195367eb
Reviewed-on: https://go-review.googlesource.com/c/go/+/269378
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Michael Pratt [Fri, 11 Dec 2020 19:14:30 +0000 (14:14 -0500)]
runtime: detect netbsd netpoll overrun in sysmon
The netbsd kernel has a bug [1] that occassionally prevents netpoll from
waking with netpollBreak, which could result in missing timers for an
unbounded amount of time, as netpoll can't restart with a shorter delay
when an earlier timer is added.
Prior to CL 232298, sysmon could detect these overrun timers and
manually start an M to run them. With this fallback gone, the bug
actually prevents timer execution indefinitely.
As a workaround, we add back sysmon detection only for netbsd.
Richard Miller [Sat, 5 Dec 2020 19:53:08 +0000 (19:53 +0000)]
runtime: skip wakep call in wakeNetPoller on Plan 9
This was part of a performance improvement made by CL 232298 to
reduce timer latency. On multiprocessor Plan 9 machines, it triggers
memory faults often enough that the builder test suite never completes
successfully. See issue #42303 for discussion. As shown by the benchmark
result below, worst case latency on plan9_arm is very bad even with the
wakep call in place - in the tickers-per-P=1 case, a 3ms timer is 270ms late.
Skipping the wakep call and running the benchmark again shows some cases
worse, some better. The performance cost doesn't seem excessive for this
temporary workaround which makes the plan9_arm builders usable again.
Change-Id: I70c63cb2a2bad46950a7cd9dfc7bb32943710d32
Reviewed-on: https://go-review.googlesource.com/c/go/+/275672 Reviewed-by: David du Colombier <0intro@gmail.com>
Trust: Michael Pratt <mpratt@google.com>
Previously, reassigned was failing to detect reassignments due to
channel receives in select statements (OSELRECV, OSELRECV2), or due to
standalone 2-value receive assignments (OAS2RECV). This was reported
as a devirtualization panic, but could have caused mis-inlining as
well.
Fixes #43292.
Change-Id: Ic8079c20c0587aeacff9596697fdeba80a697b12
Reviewed-on: https://go-review.googlesource.com/c/go/+/279352
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Ian Lance Taylor [Wed, 16 Dec 2020 04:24:33 +0000 (20:24 -0800)]
test: for issue11656 try to execute trap, not call it
The issue11656 code was using the trap instruction as a PC value,
but it is intended to call a PC value that contains the trap instruction.
It doesn't matter too much as in practice the address is not
executable anyhow. But may as well have the code act the way it
is documented to act.
Also, don't run the test with gccgo/GoLLVM, as it can't work.
The illegal instruction will have no unwind data, so the unwinder
won't be able to get past it. In other words, gccgo/GoLLVM suffer
from the exact problem that the issue describes, but it seems insoluble.
For golang/go#11656
Change-Id: Ib2e50ffc91d215fd50e78f742fafe476c92d704e
Reviewed-on: https://go-review.googlesource.com/c/go/+/278473
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
Ian Lance Taylor [Fri, 18 Dec 2020 21:54:27 +0000 (13:54 -0800)]
test: permit "exponent too large" error
The language spec only requires a signed binary exponent of 16 bits
for floating point constants. Permit a "exponent too large" error for
larger exponents.
Don't run test 11326b with gccgo, as it requires successful compilation
of floating point constants with exponents that don't fit in 16 bits.
Change-Id: I98688160c76864aba525a151a14aaaf86bc36a6f
Reviewed-on: https://go-review.googlesource.com/c/go/+/279252
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
Ian Lance Taylor [Thu, 17 Dec 2020 22:59:45 +0000 (14:59 -0800)]
go/build: make TestDependencies work again
CL 243940 accidentally broke TestDependencies such that it always passed.
Make it work again, and add a test so that it won't break in the same way.
This revealed that the new embed package was missing from TestDepencies,
so add it.
Fixes #43249
Change-Id: I02b3e38dd35ad88880c4344d46de13b7639aa4c6
Reviewed-on: https://go-review.googlesource.com/c/go/+/279073
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Russ Cox <rsc@golang.org>
Ian Lance Taylor [Thu, 17 Dec 2020 22:57:20 +0000 (14:57 -0800)]
os: remove dependency on strings package
Historically the os package has not imported the strings package.
That was enforced by go/build.TestDependencies, but that test
was accidentally broken (#43249). A dependency of os on strings
was accidentally added by CL 266364; remove it.
For #42026
For #43249
Change-Id: If932308f30561fdcc5c608d7563e849c0d2870d8
Reviewed-on: https://go-review.googlesource.com/c/go/+/279072
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Henrique Vicente [Mon, 16 Nov 2020 02:09:31 +0000 (03:09 +0100)]
os/signal: fix flaky tests for NotifyContext.
Test failures started to happen sporadically on some builds after the introduction of NotifyContext.
To make these tests more robust and avoid the risk of crosstalk we run them in a separate process.
Fixes #41561.
Change-Id: Ia7af105c316afd11765358f1e5e253ccfe2adc2b
Reviewed-on: https://go-review.googlesource.com/c/go/+/270198
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Bryan C. Mills <bcmills@google.com>
Trust: Cherry Zhang <cherryyz@google.com>
Than McIntosh [Mon, 14 Dec 2020 18:03:06 +0000 (13:03 -0500)]
cmd/link: avoid use of -T when linking with lld
When doing external linking on Windows, auto-detect the linker flavor
(bfd vs gold vs lld) and when linking with "lld", avoid the use of
"-T" (linker script), since this option is not supported by lld.
[Note: the Go linker currently employs -T to ensure proper placement
of the .debug_gdb_scripts section, to work around issues in older
versions of binutils; LLD recognizes this section and does place it
properly].
Updates #39326.
Change-Id: I3ea79cdceef2316bf86eccdb60188ac3655264ed
Reviewed-on: https://go-review.googlesource.com/c/go/+/278932
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Jeremy Faller <jeremy@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
Ian Lance Taylor [Thu, 17 Dec 2020 22:03:07 +0000 (14:03 -0800)]
test: recognize and use gc build tag
Change the run.go driver to recognize the "gc" build tag.
Change existing tests to use the "gc" build tag if they use some
feature that seems specific to the gc compiler, such as passing specific
options to or expecting specific behavior from "go tool compile".
Change tests to use the "!gccgo" build tag if they use "go build" or
"go run", as while those might work with compilers other than gc, they
won't work with the way that gccgo runs its testsuite (which happens
independently of the go command).
For #43252
Change-Id: I666e04b6d7255a77dfc256ee304094e3a6bb15ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/279052
Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
Dmitri Shuralyov [Wed, 9 Dec 2020 03:54:44 +0000 (22:54 -0500)]
api: promote next to go1.16
Change-Id: Id7d242ddd4b80a763787513d0a658dd7aea9db7d
Reviewed-on: https://go-review.googlesource.com/c/go/+/276454
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Dmitri Shuralyov <dmitshur@golang.org> Reviewed-by: Alexander Rakoczy <alex@golang.org> Reviewed-by: Carlos Amedee <carlos@golang.org>
Rob Findley [Wed, 16 Dec 2020 22:19:44 +0000 (17:19 -0500)]
go/types: report error for invalid (but empty) expr switch
This is a port of CL 278132 from the dev.typeparams branch. A notable
addition is a new error code, since no existing codes made sense and we
have an analogous code for type switches.
Fixes #43110
Change-Id: I22b3f9d8777063223f82785504e8b7d299bc5216
Reviewed-on: https://go-review.googlesource.com/c/go/+/278813
Run-TryBot: Robert Findley <rfindley@google.com> Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Robert Findley <rfindley@google.com>
Cherry Zhang [Mon, 14 Dec 2020 23:52:13 +0000 (18:52 -0500)]
cmd/link: handle large relocation addend on darwin/arm64
Mach-O relocation addend is signed 24-bit. When external linking,
if the addend is larger, we cannot put it directly into a Mach-O
relocation. This CL handles large addend by creating "label"
symbols at sym+0x800000, sym+(0x800000*2), etc., and emitting
Mach-O relocations that target the label symbols with a smaller
addend. The label symbols are generated late (similar to what
we do for RISC-V64).
One complexity comes from handling of carrier symbols, which does
not track its size or its inner symbols. But relocations can
target them. We track them in a side table (similar to what we
do for XCOFF, xcoffUpdateOuterSize).
Fixes #42738.
Change-Id: I8c53ab2397f8b88870d26f00e9026285e5ff5584
Reviewed-on: https://go-review.googlesource.com/c/go/+/278332
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
Than McIntosh [Tue, 15 Dec 2020 20:54:25 +0000 (15:54 -0500)]
cmd/internal/goobj: fix buglet in object file reader
The code in the new (introduced in 1.15) Go object file reader was
casting a pointer-mmaped-memory into a large array prior to performing
a read of the relocations section:
For very large object files, this artificial array isn't large enough
(that is, there are more than 1048576 relocs to read), so update the
code to use a larger artifical array size.
Fixes #41621.
Change-Id: Ic047c8aef4f8a3839f2e7e3594bce652ebd6bd5b
Reviewed-on: https://go-review.googlesource.com/c/go/+/278492
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> Reviewed-by: Jeremy Faller <jeremy@golang.org>
Trust: Than McIntosh <thanm@google.com>
Meng Zhuo [Sat, 28 Nov 2020 10:09:21 +0000 (18:09 +0800)]
net: close connection in localServer teardown
The transponder sets up a deferred close on accepted connections which
is fine after the client reads all data. However there are no mutexes
nor channels to block the transponder from closing. If the scheduler
runs close before the client read, it will cause an EOF failure.
Fixes #42720
Change-Id: Ic21b476c5efc9265a80a2c6f8484efdb5af66405
Reviewed-on: https://go-review.googlesource.com/c/go/+/273672
Run-TryBot: Meng Zhuo <mzh@golangcn.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Meng Zhuo <mzh@golangcn.org> Reviewed-by: Damien Neil <dneil@google.com>
Jason A. Donenfeld [Sun, 8 Nov 2020 02:20:36 +0000 (03:20 +0100)]
cmd/link: ignore SEH marking on PE objects
Microsoft's linker looks at whether all input objects have an empty
section called @feat.00. If all of them do, then it enables SEH;
otherwise it doesn't enable that feature. So, since around the Windows
XP SP2 era, most tools that make PE objects just tack on that section,
so that it won't gimp Microsoft's linker logic. Go doesn't support SEH,
so in theory, none of this really matters to us. But actually, if the
linker tries to ingest an object with @feat.00 -- which are produced by
LLVM's resource compiler, for example -- it chokes because of the
IMAGE_SYM_ABSOLUTE section that it doesn't know how to deal with. Since
@feat.00 is just a marking anyway, skip IMAGE_SYM_ABSOLUTE sections that
are called @feat.00.
Change-Id: I1d7bfcf6001186c53e2c487c5ac251ca65efefee
Reviewed-on: https://go-review.googlesource.com/c/go/+/268239
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
Trust: Alex Brainman <alex.brainman@gmail.com>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Change-Id: If4c22430557459d5b361beda7168f8cb42b58811
Reviewed-on: https://go-review.googlesource.com/c/go/+/278512
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Ian Lance Taylor [Sat, 12 Dec 2020 03:10:00 +0000 (19:10 -0800)]
doc/go1.15: mention 1.15.3 cgo restriction on empty structs
For #40954
Change-Id: I6a30aed31a16e820817f4ca5c7f591222e922946
Reviewed-on: https://go-review.googlesource.com/c/go/+/277432
Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
Change-Id: Ie9875916697833f5fa28ab890218851a741120ac
Reviewed-on: https://go-review.googlesource.com/c/go/+/278175
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
Ian Lance Taylor [Tue, 15 Dec 2020 06:03:29 +0000 (22:03 -0800)]
test: only require issue11674 errors with gc compiler
The gofrontend code sees that the denominator is not zero,
so it computes the values. Dividing zero by a non-zero value
produces zero. The language spec doesn't require any of these
cases to report an error, so make the errors compiler-specific.
Change-Id: I5ed759a3121e38b937744d32250adcbdf2c4d3c2
Reviewed-on: https://go-review.googlesource.com/c/go/+/278117
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
The bug429 tests is an exact duplicate of TestSimpleDeadlock in the
runtime package. The runtime package is the right place for this test,
and the version in the runtime package will run faster as the build
step is combined with other runtime package tests.
Change-Id: I6538d24e6df8e8c5e3e399d3ff37d68f3e52be56
Reviewed-on: https://go-review.googlesource.com/c/go/+/278173
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
Ian Lance Taylor [Tue, 15 Dec 2020 05:56:25 +0000 (21:56 -0800)]
test: adjust issue11371 to fit in required precision
The language spec only requires that floating point values be
represented with 256 bits, which is about 1e75. The issue11371 test
was assuming that the compiler could represent 1e100. Adjusting the
test so that it only assumes 256 bits of precision still keeps the
test valid, and permits it to pass when using the gofrontend.
Change-Id: I9d1006e9adc9438277f4b8002488c912e5d61cc1
Reviewed-on: https://go-review.googlesource.com/c/go/+/278116
Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
Ian Lance Taylor [Tue, 15 Dec 2020 05:43:50 +0000 (21:43 -0800)]
test: only check for issue11362 error with gc
With the gc compiler the import path implies the package path,
so keeping a canonical path is important. With the gofrontend
this is not the case, so we don't need to report this as a bug.
Change-Id: I245e34f9b66383bd17e79438d4b002a3e20aa994
Reviewed-on: https://go-review.googlesource.com/c/go/+/278115
Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
Ian Lance Taylor [Tue, 15 Dec 2020 03:18:20 +0000 (19:18 -0800)]
test: import file name for issue19028
The pattern in NNN.dir directories is that if we have a.go,
the other files import "./a". For gc it happens to work to use a path,
but not for gofrontend. Better to be consistent.
Change-Id: I2e023cbf6bd115f9fb77427b097b0ff9b9992f17
Reviewed-on: https://go-review.googlesource.com/c/go/+/278113
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
Ian Lance Taylor [Mon, 14 Dec 2020 21:26:35 +0000 (13:26 -0800)]
test: recognize gofrontend error messages
fixedbugs/issue26416.go:24:16: error: unknown field ‘t1f1’ in ‘t2’
fixedbugs/issue26416.go:25:16: error: unknown field ‘t1f2’ in ‘t3’
fixedbugs/issue26416.go:26:16: error: unknown field ‘t2f1’ in ‘t3’
fixedbugs/issue26616.go:15:9: error: single variable set to multiple-value function call
fixedbugs/issue26616.go:9:5: error: incompatible type in initialization (multiple-value function call in single-value context)
fixedbugs/issue26616.go:12:13: error: incompatible type in initialization (multiple-value function call in single-value context)
fixedbugs/issue26616.go:13:13: error: incompatible type in initialization (multiple-value function call in single-value context)
fixedbugs/issue26616.go:15:9: error: incompatible type in initialization (multiple-value function call in single-value context)
fixedbugs/issue26616.go:14:11: error: incompatible types in assignment (multiple-value function call in single-value context)
fixedbugs/issue26855.go:23:12: error: incompatible type for field 1 in struct construction
fixedbugs/issue26855.go:27:12: error: incompatible type for field 1 in struct construction
fixedbugs/issue25958.go:14:18: error: expected ‘<-’ or ‘=’
fixedbugs/issue25958.go:15:35: error: expected ‘<-’ or ‘=’
fixedbugs/issue28079b.go:13:9: error: array bound is not constant
fixedbugs/issue28079b.go:16:22: error: invalid context-determined non-integer type for left operand of shift
fixedbugs/issue28079c.go:14:22: error: invalid context-determined non-integer type for left operand of shift
fixedbugs/issue28450.go:9:19: error: ‘...’ only permits one name
fixedbugs/issue28450.go:10:18: error: ‘...’ must be last parameter
fixedbugs/issue28450.go:11:16: error: ‘...’ must be last parameter
fixedbugs/issue28450.go:11:24: error: ‘...’ must be last parameter
fixedbugs/issue28450.go:13:25: error: ‘...’ must be last parameter
fixedbugs/issue28450.go:15:19: error: ‘...’ must be last parameter
fixedbugs/issue28450.go:16:21: error: ‘...’ must be last parameter
fixedbugs/issue28450.go:16:31: error: ‘...’ must be last parameter
fixedbugs/issue28268.go:20:1: error: method ‘E’ redeclares struct field name
fixedbugs/issue28268.go:19:1: error: method ‘b’ redeclares struct field name
fixedbugs/issue27356.go:14:14: error: expected function
fixedbugs/issue27356.go:18:9: error: expected function
fixedbugs/issue29855.go:13:11: error: unknown field ‘Name’ in ‘T’
fixedbugs/issue27938.go:14:15: error: expected package
fixedbugs/issue27938.go:18:13: error: expected package
fixedbugs/issue27938.go:22:13: error: expected package
fixedbugs/issue27938.go:22:9: error: expected signature or type name
fixedbugs/issue29870b.go:13:9: error: ‘x’ declared but not used
fixedbugs/issue30085.go:10:18: error: wrong number of initializations
fixedbugs/issue30085.go:11:21: error: wrong number of initializations
fixedbugs/issue30087.go:10:18: error: wrong number of initializations
fixedbugs/issue30087.go:11:11: error: number of variables does not match number of values
fixedbugs/issue30087.go:12:9: error: wrong number of initializations
fixedbugs/issue30087.go:13:9: error: wrong number of initializations
fixedbugs/issue28926.go:16:14: error: use of undefined type ‘G’
fixedbugs/issue28926.go:18:14: error: use of undefined type ‘E’
fixedbugs/issue28926.go:22:24: error: use of undefined type ‘T’
fixedbugs/issue33308.go:12:19: error: invalid context-determined non-integer type for left operand of shift
fixedbugs/issue33386.go:16:9: error: expected operand
fixedbugs/issue33386.go:22:9: error: expected operand
fixedbugs/issue33386.go:26:17: error: expected operand
fixedbugs/issue33386.go:27:18: error: expected operand
fixedbugs/issue33386.go:28:29: error: expected operand
fixedbugs/issue33386.go:15:17: error: reference to undefined name ‘send’
fixedbugs/issue33386.go:27:13: error: reference to undefined name ‘a’
fixedbugs/issue33386.go:21:19: error: value computed is not used
fixedbugs/issue33460.go:34:10: error: duplicate key in map literal
fixedbugs/issue33460.go:21:9: error: duplicate case in switch
fixedbugs/issue33460.go:24:9: error: duplicate case in switch
fixedbugs/issue33460.go:25:9: error: duplicate case in switch
fixedbugs/issue32723.go:12:14: error: invalid comparison of non-ordered type
fixedbugs/issue32723.go:13:13: error: invalid comparison of non-ordered type
fixedbugs/issue32723.go:16:16: error: invalid comparison of non-ordered type
fixedbugs/issue32723.go:17:16: error: invalid comparison of non-ordered type
fixedbugs/issue32723.go:18:15: error: invalid comparison of non-ordered type
fixedbugs/issue32723.go:21:15: error: invalid comparison of non-ordered type
fixedbugs/issue35291.go:13:9: error: duplicate value for index 1
fixedbugs/issue38745.go:12:12: error: reference to undefined field or method ‘M’
fixedbugs/issue38745.go:13:16: error: reference to undefined field or method ‘M’
fixedbugs/issue38745.go:17:19: error: reference to undefined field or method ‘M’
fixedbugs/issue38745.go:17:9: error: not enough arguments to return
fixedbugs/issue41500.go:16:22: error: incompatible types in binary expression
fixedbugs/issue41500.go:17:26: error: incompatible types in binary expression
fixedbugs/issue41500.go:18:22: error: incompatible types in binary expression
fixedbugs/issue41500.go:19:26: error: incompatible types in binary expression
fixedbugs/issue41575.go:23:6: error: invalid recursive type
fixedbugs/issue41575.go:9:6: error: invalid recursive type ‘T1’
fixedbugs/issue41575.go:13:6: error: invalid recursive type ‘T2’
fixedbugs/issue41575.go:17:6: error: invalid recursive type ‘a’
fixedbugs/issue41575.go:18:6: error: invalid recursive type ‘b’
fixedbugs/issue41575.go:19:6: error: invalid recursive type ‘c’
fixedbugs/issue41575.go:25:6: error: invalid recursive type ‘g’
fixedbugs/issue41575.go:32:6: error: invalid recursive type ‘x’
fixedbugs/issue41575.go:33:6: error: invalid recursive type ‘y’
fixedbugs/issue4215.go:10:9: error: not enough arguments to return
fixedbugs/issue4215.go:14:9: error: return with value in function with no return type
fixedbugs/issue4215.go:19:17: error: not enough arguments to return
fixedbugs/issue4215.go:21:9: error: not enough arguments to return
fixedbugs/issue4215.go:27:17: error: not enough arguments to return
fixedbugs/issue4215.go:29:17: error: too many values in return statement
fixedbugs/issue4215.go:31:17: error: not enough arguments to return
fixedbugs/issue4215.go:43:17: error: not enough arguments to return
fixedbugs/issue4215.go:46:17: error: not enough arguments to return
fixedbugs/issue4215.go:48:9: error: too many values in return statement
fixedbugs/issue4215.go:52:9: error: too many values in return statement
fixedbugs/issue41247.go:10:16: error: incompatible type for return value 1
fixedbugs/issue41440.go:13:9: error: too many arguments
fixedbugs/issue6772.go:10:16: error: ‘a’ repeated on left side of :=
fixedbugs/issue6772.go:17:16: error: ‘a’ repeated on left side of :=
fixedbugs/issue6402.go:12:16: error: incompatible type for return value 1
fixedbugs/issue6403.go:13:23: error: reference to undefined identifier ‘syscall.X’
fixedbugs/issue6403.go:14:15: error: reference to undefined name ‘voidpkg’
fixedbugs/issue7760.go:15:7: error: invalid constant type
fixedbugs/issue7760.go:16:7: error: invalid constant type
fixedbugs/issue7760.go:18:7: error: invalid constant type
fixedbugs/issue7760.go:19:7: error: invalid constant type
fixedbugs/issue7760.go:21:11: error: expression is not constant
fixedbugs/issue7760.go:22:11: error: expression is not constant
fixedbugs/issue7760.go:24:7: error: invalid constant type
fixedbugs/issue7760.go:25:7: error: invalid constant type
fixedbugs/issue7129.go:18:11: error: argument 1 has incompatible type (cannot use type bool as type int)
fixedbugs/issue7129.go:19:11: error: argument 1 has incompatible type (cannot use type bool as type int)
fixedbugs/issue7129.go:20:11: error: argument 1 has incompatible type (cannot use type bool as type int)
fixedbugs/issue7129.go:20:17: error: argument 2 has incompatible type (cannot use type bool as type int)
fixedbugs/issue7150.go:12:20: error: index expression is negative
fixedbugs/issue7150.go:13:13: error: some element keys in composite literal are out of range
fixedbugs/issue7150.go:14:13: error: some element keys in composite literal are out of range
fixedbugs/issue7150.go:15:13: error: some element keys in composite literal are out of range
fixedbugs/issue7150.go:16:13: error: some element keys in composite literal are out of range
fixedbugs/issue7675.go:16:11: error: argument 1 has incompatible type (cannot use type int as type string)
fixedbugs/issue7675.go:16:24: error: argument 3 has incompatible type (cannot use type string as type float64)
fixedbugs/issue7675.go:16:9: error: not enough arguments
fixedbugs/issue7675.go:16:14: error: floating-point constant truncated to integer
fixedbugs/issue7675.go:18:11: error: argument 1 has incompatible type (cannot use type int as type string)
fixedbugs/issue7675.go:18:24: error: argument 3 has incompatible type (cannot use type string as type float64)
fixedbugs/issue7675.go:18:28: error: argument 4 has incompatible type (cannot use type int as type string)
fixedbugs/issue7675.go:18:9: error: too many arguments
fixedbugs/issue7675.go:18:14: error: floating-point constant truncated to integer
fixedbugs/issue7675.go:19:11: error: argument 1 has incompatible type (cannot use type int as type string)
fixedbugs/issue7675.go:19:9: error: not enough arguments
fixedbugs/issue7675.go:19:14: error: floating-point constant truncated to integer
fixedbugs/issue7675.go:21:11: error: argument 1 has incompatible type (cannot use type int as type string)
fixedbugs/issue7675.go:21:19: error: argument 3 has incompatible type
fixedbugs/issue7675.go:21:14: error: floating-point constant truncated to integer
fixedbugs/issue7675.go:23:14: error: floating-point constant truncated to integer
fixedbugs/issue7153.go:11:15: error: reference to undefined name ‘a’
fixedbugs/issue7153.go:11:18: error: incompatible type for element 1 in composite literal
fixedbugs/issue7153.go:11:24: error: incompatible type for element 2 in composite literal
fixedbugs/issue7310.go:12:13: error: left argument must be a slice
fixedbugs/issue7310.go:13:13: error: second argument must be slice or string
fixedbugs/issue7310.go:14:15: error: incompatible types in binary expression
fixedbugs/issue6964.go:10:13: error: invalid type conversion (cannot use type complex128 as type string)
fixedbugs/issue7538a.go:14:9: error: reference to undefined label ‘_’
fixedbugs/issue8311.go:14:9: error: increment or decrement of non-numeric type
fixedbugs/issue8507.go:12:6: error: invalid recursive type ‘T’
fixedbugs/issue9521.go:16:20: error: argument 2 has incompatible type
fixedbugs/issue9521.go:17:20: error: argument 2 has incompatible type (cannot use type float64 as type int)
fixedbugs/issue8385.go:30:19: error: argument 1 has incompatible type (type has no methods)
fixedbugs/issue8385.go:30:14: error: not enough arguments
fixedbugs/issue8385.go:35:9: error: not enough arguments
fixedbugs/issue8385.go:36:9: error: not enough arguments
fixedbugs/issue8385.go:37:10: error: not enough arguments
fixedbugs/issue8385.go:38:10: error: not enough arguments
fixedbugs/issue8385.go:39:10: error: not enough arguments
fixedbugs/issue8385.go:40:10: error: not enough arguments
fixedbugs/issue8385.go:41:13: error: not enough arguments
fixedbugs/issue8438.go:13:23: error: incompatible type for element 1 in composite literal
fixedbugs/issue8438.go:14:22: error: incompatible type for element 1 in composite literal
fixedbugs/issue8438.go:15:23: error: incompatible type for element 1 in composite literal
fixedbugs/issue8440.go:10:9: error: reference to undefined name ‘n’
Change-Id: I5707aec7d3c9178c4f4d794d4827fc907b52efb3
Reviewed-on: https://go-review.googlesource.com/c/go/+/278032
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
Jason A. Donenfeld [Sun, 8 Nov 2020 02:09:42 +0000 (03:09 +0100)]
cmd/link: deal with ADDR32NB relocations the same way as ADDR32 on arm
As far as I can tell, the addend is the same for both of these, and in
this context we don't really care about setting or unsetting the thumb
selection bit, so just treat these the same way.
Change-Id: I3756c027239f77778c32b317733df9ac92272580
Reviewed-on: https://go-review.googlesource.com/c/go/+/268238 Reviewed-by: Cherry Zhang <cherryyz@google.com>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Jason A. Donenfeld [Sun, 8 Nov 2020 01:48:09 +0000 (02:48 +0100)]
cmd/link: recognize arm header of PE objects
The linker recognizes headers for 386 and amd64 PE objects, but not arm
objects. This is easily overlooked, since its the same as the 386 header
value, except the two nibbles of the first word are swapped. This commit
simply adds the check for this. Without it, .syso objects are rejected,
which means Windows binaries can't have resources built into them. At
the same time, we add comments to better indicate which condition
applies to which arch.
Change-Id: I210411d978504c1a9540e23abc5a180e24f159ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/268237 Reviewed-by: Cherry Zhang <cherryyz@google.com>
Trust: Alex Brainman <alex.brainman@gmail.com>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Rob Findley [Fri, 11 Dec 2020 21:24:26 +0000 (16:24 -0500)]
go/types: report invalid ... in conversions
This is a port of CL 277072 from the dev.typeparams branch.
Fixes #43124
Change-Id: I1424c396dc1ea984ec85b8f31a4d43353bf7e4fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/277352
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Robert Findley <rfindley@google.com> Reviewed-by: Robert Griesemer <gri@golang.org>
Daniel S Fava [Wed, 9 Dec 2020 22:56:50 +0000 (23:56 +0100)]
test: make a race detector test robust to timing variations
The `external_cgo_thread` test in `runtime/race/output_test.go` was
producing intermittent failures. The test was performing a sleep,
which may not be enough depending on how long it takes to setup the
callBack goroutine.
Added a synchronization to make sure callBack finishes before main ends.
Whether the increment to racy++ happens first in the callBack
or in main doesn't matter: the race detector should flag the race
regardless. The output check was changed so that the test passes
regardless of which increment occurs first.
Fixes #43008
Change-Id: I325ec3dea52b3725e739fbf2bd7ae92875d2de10
Reviewed-on: https://go-review.googlesource.com/c/go/+/276752 Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Run-TryBot: Dmitry Vyukov <dvyukov@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Ian Lance Taylor <iant@golang.org>
Anmol Sethi [Fri, 11 Dec 2020 23:01:12 +0000 (23:01 +0000)]
net/http: attempt deadlock fix in TestDisableKeepAliveUpgrade
1. The test now checks the response status code.
2. The transport has been changed to not set "Connection: Close" if
DisableKeepAlive is set and the request is a HTTP/1.1 protocol
upgrade.
Updates #43073
Change-Id: I9977a18b33b8747ef847a8d11bb7b4f2d8053b8c
GitHub-Last-Rev: f809cebb139df4f5560a8456973351c95a3dfa97
GitHub-Pull-Request: golang/go#43086
Reviewed-on: https://go-review.googlesource.com/c/go/+/276375
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Damien Neil <dneil@google.com>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Ian Lance Taylor [Fri, 11 Dec 2020 23:15:43 +0000 (15:15 -0800)]
debug/dwarf: don't try to parse addr/rnglists header
In an executable, the debug_addr and debug_rnglists sections are
assembled by concatenating the input sections, and each input section
has a header, and each header may have different attributes. So just
parsing the single header isn't right. Parsing the header is not
necessary to handle offsets into these sections which is all we do.
Looking at the header is also problematic because GCC with
-gsplit-dwarf when using DWARF versions 2 through 4 emits a
.debug_addr section, but it has no header. The header was only added
for DWARF 5. So we can't parse the header at all for that case, and we
can't even detect that case in general.
This CL also fixes SeekPC with addrx and strx formats, by not using
the wrong compilation unit to find the address or string base.
To make that work when parsing the compilation unit itself, we add
support for delay the resolution of those values until we know the base.
clang -gdwarf-5 -no-pie debug/dwarf/testdata/line[12].c
(clang version 9.0.1-14)
Change-Id: I66783e0eded629bf80c467767f781164d344a54d
Reviewed-on: https://go-review.googlesource.com/c/go/+/277233
Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
Ian Lance Taylor [Mon, 14 Dec 2020 06:48:02 +0000 (22:48 -0800)]
test: match gofrontend error messages
fixedbugs/issue20602.go:13:9: error: argument must have complex type
fixedbugs/issue20602.go:14:9: error: argument must have complex type
fixedbugs/issue19323.go:12:12: error: attempt to slice object that is not array, slice, or string
fixedbugs/issue19323.go:18:13: error: attempt to slice object that is not array, slice, or string
fixedbugs/issue20749.go:12:11: error: array index out of bounds
fixedbugs/issue20749.go:15:11: error: array index out of bounds
fixedbugs/issue20415.go:14:5: error: redefinition of ‘f’
fixedbugs/issue20415.go:12:5: note: previous definition of ‘f’ was here
fixedbugs/issue20415.go:25:5: error: redefinition of ‘g’
fixedbugs/issue20415.go:20:5: note: previous definition of ‘g’ was here
fixedbugs/issue20415.go:33:5: error: redefinition of ‘h’
fixedbugs/issue20415.go:31:5: note: previous definition of ‘h’ was here
fixedbugs/issue19977.go:12:21: error: reference to undefined name ‘a’
fixedbugs/issue20812.go:10:13: error: invalid type conversion (cannot use type string as type int)
fixedbugs/issue20812.go:11:13: error: invalid type conversion (cannot use type int as type bool)
fixedbugs/issue20812.go:12:13: error: invalid type conversion (cannot use type string as type bool)
fixedbugs/issue20812.go:13:13: error: invalid type conversion (cannot use type bool as type int)
fixedbugs/issue20812.go:14:13: error: invalid type conversion (cannot use type bool as type string)
fixedbugs/issue21256.go:9:5: error: redefinition of ‘main’
fixedbugs/issue20813.go:10:11: error: invalid left hand side of assignment
fixedbugs/issue20185.go:22:16: error: ‘t’ declared but not used
fixedbugs/issue20185.go:13:9: error: cannot type switch on non-interface value
fixedbugs/issue20185.go:22:9: error: cannot type switch on non-interface value
fixedbugs/issue20227.go:11:11: error: division by zero
fixedbugs/issue20227.go:12:12: error: division by zero
fixedbugs/issue20227.go:13:12: error: division by zero
fixedbugs/issue20227.go:15:11: error: division by zero
fixedbugs/issue20227.go:16:12: error: division by zero
fixedbugs/issue19880.go:14:13: error: invalid use of type
fixedbugs/issue23093.go:9:5: error: initialization expression for ‘f’ depends upon itself
fixedbugs/issue21979.go:29:13: error: integer constant overflow
fixedbugs/issue21979.go:39:13: error: complex constant truncated to floating-point
fixedbugs/issue21979.go:10:13: error: invalid type conversion (cannot use type string as type bool)
fixedbugs/issue21979.go:11:13: error: invalid type conversion (cannot use type int as type bool)
fixedbugs/issue21979.go:12:13: error: invalid type conversion (cannot use type float64 as type bool)
fixedbugs/issue21979.go:13:13: error: invalid type conversion (cannot use type complex128 as type bool)
fixedbugs/issue21979.go:15:13: error: invalid type conversion (cannot use type bool as type string)
fixedbugs/issue21979.go:17:13: error: invalid type conversion (cannot use type float64 as type string)
fixedbugs/issue21979.go:18:13: error: invalid type conversion (cannot use type complex128 as type string)
fixedbugs/issue21979.go:20:13: error: invalid type conversion (cannot use type string as type int)
fixedbugs/issue21979.go:21:13: error: invalid type conversion (cannot use type bool as type int)
fixedbugs/issue21979.go:27:13: error: invalid type conversion (cannot use type string as type uint)
fixedbugs/issue21979.go:28:13: error: invalid type conversion (cannot use type bool as type uint)
fixedbugs/issue21979.go:34:13: error: invalid type conversion (cannot use type string as type float64)
fixedbugs/issue21979.go:35:13: error: invalid type conversion (cannot use type bool as type float64)
fixedbugs/issue21979.go:41:13: error: invalid type conversion (cannot use type string as type complex128)
fixedbugs/issue21979.go:42:13: error: invalid type conversion (cannot use type bool as type complex128)
fixedbugs/issue21988.go:11:11: error: reference to undefined name ‘Wrong’
fixedbugs/issue22063.go:11:11: error: reference to undefined name ‘Wrong’
fixedbugs/issue22904.go:12:6: error: invalid recursive type ‘a’
fixedbugs/issue22904.go:13:6: error: invalid recursive type ‘b’
fixedbugs/issue22921.go:11:16: error: reference to undefined identifier ‘bytes.nonexist’
fixedbugs/issue22921.go:13:19: error: reference to undefined identifier ‘bytes.nonexist’
fixedbugs/issue22921.go:13:19: error: expected signature or type name
fixedbugs/issue22921.go:17:15: error: reference to undefined identifier ‘bytes.buffer’
fixedbugs/issue23732.go:24:13: error: too few expressions for struct
fixedbugs/issue23732.go:34:17: error: too many expressions for struct
fixedbugs/issue23732.go:37:13: error: too few expressions for struct
fixedbugs/issue23732.go:40:17: error: too many expressions for struct
fixedbugs/issue22794.go:16:14: error: reference to undefined field or method ‘floats’
fixedbugs/issue22794.go:18:19: error: unknown field ‘floats’ in ‘it’
fixedbugs/issue22794.go:19:17: error: unknown field ‘InneR’ in ‘it’
fixedbugs/issue22794.go:18:9: error: ‘i2’ declared but not used
fixedbugs/issue22822.go:15:17: error: expected function
fixedbugs/issue25727.go:12:10: error: reference to unexported field or method ‘doneChan’
fixedbugs/issue25727.go:13:10: error: reference to undefined field or method ‘DoneChan’
fixedbugs/issue25727.go:14:21: error: unknown field ‘tlsConfig’ in ‘http.Server’
fixedbugs/issue25727.go:15:21: error: unknown field ‘DoneChan’ in ‘http.Server’
fixedbugs/issue25727.go:21:14: error: unknown field ‘bAr’ in ‘foo’
Change-Id: I32ce0b7d80017b2367b8fb479a881632240d4161
Reviewed-on: https://go-review.googlesource.com/c/go/+/277455
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
Ian Lance Taylor [Sat, 12 Dec 2020 03:53:32 +0000 (19:53 -0800)]
test: match gofrontend error messages
fixedbugs/issue14136.go:17:16: error: unknown field ‘X’ in ‘T’
fixedbugs/issue14136.go:18:13: error: incompatible type in initialization (cannot use type int as type string)
fixedbugs/issue14520.go:9:37: error: import path contains control character
fixedbugs/issue14520.go:14:2: error: expected ‘)’
fixedbugs/issue14520.go:14:3: error: expected declaration
fixedbugs/issue14652.go:9:7: error: use of undefined type ‘any’
fixedbugs/issue14729.go:13:17: error: embedded type may not be a pointer
fixedbugs/issue15514.dir/c.go:10: error: incompatible type in initialization
fixedbugs/issue15898.go:11:9: error: duplicate type in switch
fixedbugs/issue15898.go:16:9: error: duplicate type in switch
fixedbugs/issue16439.go:10:21: error: index expression is negative
fixedbugs/issue16439.go:13:21: error: index expression is negative
fixedbugs/issue16439.go:16:21: error: index expression is not integer constant
fixedbugs/issue16439.go:18:22: error: index expression is not integer constant
fixedbugs/issue17328.go:11:20: error: expected ‘{’
fixedbugs/issue17328.go:11:20: error: expected ‘;’ or ‘}’ or newline
fixedbugs/issue17328.go:13:1: error: expected declaration
fixedbugs/issue17588.go:14:15: error: expected type
fixedbugs/issue17631.go:20:17: error: unknown field ‘updates’ in ‘unnamed struct’
fixedbugs/issue17645.go:15:13: error: incompatible type in initialization
fixedbugs/issue17758.go:13:1: error: redefinition of ‘foo’
fixedbugs/issue17758.go:9:1: note: previous definition of ‘foo’ was here
fixedbugs/issue18231.go:17:12: error: may only omit types within composite literals of slice, array, or map type
fixedbugs/issue18393.go:24:38: error: expected type
fixedbugs/issue18419.dir/test.go:12: error: reference to unexported field or method 'member'
fixedbugs/issue18655.go:14:1: error: redefinition of ‘m’
fixedbugs/issue18655.go:13:1: note: previous definition of ‘m’ was here
fixedbugs/issue18655.go:15:1: error: redefinition of ‘m’
fixedbugs/issue18655.go:13:1: note: previous definition of ‘m’ was here
fixedbugs/issue18655.go:16:1: error: redefinition of ‘m’
fixedbugs/issue18655.go:13:1: note: previous definition of ‘m’ was here
fixedbugs/issue18655.go:17:1: error: redefinition of ‘m’
fixedbugs/issue18655.go:13:1: note: previous definition of ‘m’ was here
fixedbugs/issue18655.go:18:1: error: redefinition of ‘m’
fixedbugs/issue18655.go:13:1: note: previous definition of ‘m’ was here
fixedbugs/issue18655.go:20:1: error: redefinition of ‘m’
fixedbugs/issue18655.go:13:1: note: previous definition of ‘m’ was here
fixedbugs/issue18655.go:21:1: error: redefinition of ‘m’
fixedbugs/issue18655.go:13:1: note: previous definition of ‘m’ was here
fixedbugs/issue18655.go:22:1: error: redefinition of ‘m’
fixedbugs/issue18655.go:13:1: note: previous definition of ‘m’ was here
fixedbugs/issue18915.go:13:20: error: expected ‘;’ after statement in if expression
fixedbugs/issue18915.go:16:21: error: parse error in for statement
fixedbugs/issue18915.go:19:24: error: expected ‘;’ after statement in switch expression
fixedbugs/issue18915.go:13:12: error: ‘a’ declared but not used
fixedbugs/issue18915.go:16:13: error: ‘b’ declared but not used
fixedbugs/issue18915.go:19:16: error: ‘c’ declared but not used
fixedbugs/issue19012.go:16:17: error: return with value in function with no return type
fixedbugs/issue19012.go:18:9: error: return with value in function with no return type
fixedbugs/issue19012.go:22:16: error: argument 2 has incompatible type (cannot use type bool as type uint)
fixedbugs/issue19012.go:22:9: error: too many arguments
fixedbugs/issue19012.go:22:16: error: incompatible types in binary expression
fixedbugs/issue19012.go:24:9: error: too many arguments
fixedbugs/issue19056.go:9:9: error: expected operand
fixedbugs/issue19056.go:9:9: error: expected ‘;’ or newline after top level declaration
fixedbugs/issue19482.go:25:15: error: expected struct field name
fixedbugs/issue19482.go:27:15: error: expected struct field name
fixedbugs/issue19482.go:31:19: error: expected struct field name
fixedbugs/issue19482.go:33:15: error: expected struct field name
fixedbugs/issue19667.go:13:1: error: expected operand
fixedbugs/issue19667.go:13:1: error: missing ‘)’
fixedbugs/issue19667.go:13:105: error: expected ‘;’ after statement in if expression
fixedbugs/issue19667.go:13:105: error: expected ‘{’
fixedbugs/issue19667.go:12:19: error: reference to undefined name ‘http’
Change-Id: Ia9c75b9c78671f354f0a0623dbc075157ef8f181
Reviewed-on: https://go-review.googlesource.com/c/go/+/277433
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
Ruixin Bao [Wed, 9 Dec 2020 21:55:37 +0000 (13:55 -0800)]
cmd/compile: fix incorrect shift count type with s390x rules
The type of the shift count must be an unsigned integer. Some s390x
rules for shift have their auxint type being int8. This results in a
compilation failure on s390x with an invalid operation when running
make.bash using older versions of go (e.g: go1.10.4).
This CL adds an auxint type of uint8 and changes the ops for shift and
rotate to use auxint with type uint8. The related rules are also
modified to address this change.
Fixes #43090
Change-Id: I594274b6e3d9b23092fc9e9f4b354870164f2f19
Reviewed-on: https://go-review.googlesource.com/c/go/+/277078 Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Jay Conrod [Fri, 11 Dec 2020 21:45:39 +0000 (16:45 -0500)]
cmd/go: print hint when 'go install' run without version outside module
If 'go install' is invoked in module mode outside a module with a
package that could only be loaded from a module, it will now suggest
running 'go install pkg@latest'.
'go install' will still work outside a module on packages in std and
cmd, as well as .go files specified on the command line.
Fixes #42638
Change-Id: Ib0963935f028b7656178bc04a279b1114de35fbb
Reviewed-on: https://go-review.googlesource.com/c/go/+/277355
Run-TryBot: Jay Conrod <jayconrod@google.com>
Trust: Jay Conrod <jayconrod@google.com> Reviewed-by: Bryan C. Mills <bcmills@google.com>
Jay Conrod [Fri, 11 Dec 2020 21:45:28 +0000 (16:45 -0500)]
cmd/go: refactor error reporting in internal/load
Replaced load.PackagesForBuild with a new function,
load.CheckPackageErrors. Callers should now call PackagesAndErrors,
then CheckPackageErrors for the same functionality.
Removed load.Packages. Callers should call base.Errorf and filter the
package list as needed.
This gives callers more flexibility in handling package load errors.
For #42638
Change-Id: Id75463ba695adc1ca3f8693ceb2c8978b74a3500
Reviewed-on: https://go-review.googlesource.com/c/go/+/277354
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Jay Conrod <jayconrod@google.com> Reviewed-by: Bryan C. Mills <bcmills@google.com>
Cuong Manh Le [Mon, 14 Dec 2020 02:45:44 +0000 (09:45 +0700)]
cmd/compile: set correct type for OpIData
Since CL 270057, there're many attempts to fix the expand_calls pass
with interface{}-typed. But all of them did not fix the root cause. The
main issue is during SSA conversion in gc/ssa.go, for empty interface
case, we make its type as n.Type, instead of BytePtr.
To fix these, we can just use BytePtr for now, since when itab fields
are treated as scalar.
Matthew Dempsky [Thu, 10 Dec 2020 20:21:45 +0000 (12:21 -0800)]
cmd/compile: fix select statement evaluation order corner case
The Go spec requires that select case clauses be evaluated in order,
which is stricter than normal ordering semantics. cmd/compile handled
this correctly for send clauses, but was not correctly handling
receive clauses that involved bare variable references.
Discovered with @cuonglm.
Fixes #43111.
Change-Id: Iec93b6514dd771875b084ba49c15d7f4531b4a6f
Reviewed-on: https://go-review.googlesource.com/c/go/+/277132
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Keith Randall <khr@golang.org>
Michael Matloob [Wed, 2 Dec 2020 02:45:49 +0000 (21:45 -0500)]
cmd/go: add documentation for the -overlay flag
Also add -overlay to the Go 1.16 release notes.
For #40700
Fixes #39958
Fixes #42893
Change-Id: Ifd397549e368b255e7b8800986cfa0563a942af5
Reviewed-on: https://go-review.googlesource.com/c/go/+/274714
Trust: Michael Matloob <matloob@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Bryan C. Mills <bcmills@google.com> Reviewed-by: Jay Conrod <jayconrod@google.com>
Ian Lance Taylor [Fri, 11 Dec 2020 06:24:21 +0000 (22:24 -0800)]
cmd/vet: vendor in x/tools, update structtag vet check
For #40281
Fixes #43083
Change-Id: I50cb4db916587a6660c7f6e71f41f02334081510
Reviewed-on: https://go-review.googlesource.com/c/go/+/277076
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Ian Lance Taylor [Thu, 10 Dec 2020 23:01:20 +0000 (15:01 -0800)]
syscall: drop references to Unix epoch in Timeval/Timespec docs
The various conversion functions just change the format of time values.
They don't use the Unix epoch. Although in practice the values are often
times since the Unix epoch, they aren't always, so referring to the
epoch can be confusing.
Fixes #43010
Change-Id: I640d665f0d2017f0974db05d70858037c7c91eda
Reviewed-on: https://go-review.googlesource.com/c/go/+/277073
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Tim King [Wed, 2 Dec 2020 01:55:35 +0000 (17:55 -0800)]
doc/go1.16: add vet release note for CL 235677
For #40700
Fixes #42895
Change-Id: I05b60f0d000512d5dddb3d61e0e695aa01943d6a
Reviewed-on: https://go-review.googlesource.com/c/go/+/274617
Trust: Tim King <taking@google.com> Reviewed-by: Ian Lance Taylor <iant@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Dmitri Shuralyov [Thu, 10 Dec 2020 22:43:09 +0000 (17:43 -0500)]
doc/go1.16: address some remaining high-level TODOs
The tools section TODO can be removed since the tools section looks
complete by now.
All TODOs in the minor changes to the library section have been done,
so the top-level TODO is resolved. Delete it.
The currently highlighted entries under Core library section look
good. It's worth reviewing this further based on feedback from Go
1.16 pre-releases, so keep the TODO but make it non-user-visible
to unblock Go 1.16 Beta 1.
For #40700.
Change-Id: Ie72661bd457b0a93ef92e1bfc0844072f3b618a6
Reviewed-on: https://go-review.googlesource.com/c/go/+/277212
Trust: Dmitri Shuralyov <dmitshur@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Michael Anthony Knyszek [Mon, 7 Dec 2020 15:03:51 +0000 (15:03 +0000)]
runtime/metrics: expand Read documention with caveats
This change modifies the documentation of Read with some caveats about
reusing the slice passed in to Read as well as with what concurrent
situations are safe.
Change-Id: I76fd31acc67ae384546a8442dfbf9d16b7445cff
Reviewed-on: https://go-review.googlesource.com/c/go/+/275853
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Michael Knyszek <mknyszek@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>
Michael Anthony Knyszek [Fri, 4 Dec 2020 16:04:53 +0000 (16:04 +0000)]
runtime/metrics: add ordering line to supported metrics docs
This change adds an additional line explaining the ordering of the
supported metrics list. It's also necessary to ensure "Supported
metrics" is displayed by godoc as a proper header.
This modification does mean the description test, that ensures
descriptions line up with documentation, needs to change slightly
so it it doesn't read this new line as documentation. Make this
new line the line the test uses to decide when to begin.
Change-Id: I654c1c20e97a80ea79c8eb864445153ce91950bf
Reviewed-on: https://go-review.googlesource.com/c/go/+/275852
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Michael Knyszek <mknyszek@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>
Ian Lance Taylor [Thu, 10 Dec 2020 02:51:12 +0000 (18:51 -0800)]
test: match gofrontend error messages
fixedbugs/bug13343.go:10:12: error: initialization expressions for ‘b’ and ‘c’ depend upon each other
fixedbugs/bug13343.go:11:9: note: ‘c’ defined here
fixedbugs/bug13343.go:11:9: error: initialization expression for ‘c’ depends upon itself
fixedbugs/bug13343.go:11:9: error: initialization expressions for ‘c’ and ‘b’ depend upon each other
fixedbugs/bug13343.go:10:12: note: ‘b’ defined here
fixedbugs/issue10700.dir/test.go:24:10: error: reference to method ‘Do’ in type that is pointer to interface, not interface
fixedbugs/issue10700.dir/test.go:25:10: error: reference to method ‘do’ in type that is pointer to interface, not interface
fixedbugs/issue10700.dir/test.go:27:10: error: reference to method ‘Dont’ in type that is pointer to interface, not interface
fixedbugs/issue10700.dir/test.go:28:13: error: reference to undefined field or method ‘Dont’
fixedbugs/issue10700.dir/test.go:31:10: error: reference to undefined field or method ‘do’
fixedbugs/issue10700.dir/test.go:33:13: error: reference to undefined field or method ‘do’
fixedbugs/issue10700.dir/test.go:34:10: error: reference to undefined field or method ‘Dont’
fixedbugs/issue10700.dir/test.go:35:13: error: reference to undefined field or method ‘Dont’
fixedbugs/issue10700.dir/test.go:37:10: error: reference to method ‘Do’ in type that is pointer to interface, not interface
fixedbugs/issue10700.dir/test.go:38:10: error: reference to method ‘do’ in type that is pointer to interface, not interface
fixedbugs/issue10700.dir/test.go:40:13: error: reference to undefined field or method ‘do’
fixedbugs/issue10700.dir/test.go:41:10: error: reference to method ‘Dont’ in type that is pointer to interface, not interface
fixedbugs/issue10700.dir/test.go:42:13: error: reference to undefined field or method ‘Dont’
fixedbugs/issue10700.dir/test.go:43:10: error: reference to method ‘secret’ in type that is pointer to interface, not interface
fixedbugs/issue10700.dir/test.go:44:13: error: reference to unexported field or method ‘secret’
fixedbugs/issue11361.go:9:11: error: import file ‘fmt’ not found
fixedbugs/issue11361.go:11:11: error: reference to undefined name ‘fmt’
fixedbugs/issue11371.go:12:15: error: floating-point constant truncated to integer
fixedbugs/issue11371.go:13:15: error: integer constant overflow
fixedbugs/issue11371.go:17:15: error: floating-point constant truncated to integer
fixedbugs/issue11590.go:9:17: error: integer constant overflow
fixedbugs/issue11590.go:9:17: error: integer constant overflow
fixedbugs/issue11590.go:10:22: error: complex real part overflow
fixedbugs/issue11590.go:10:22: error: complex real part overflow
fixedbugs/issue11590.go:11:23: error: complex real part overflow
fixedbugs/issue11590.go:11:23: error: complex real part overflow
fixedbugs/issue11590.go:9:19: error: integer constant overflow
fixedbugs/issue11590.go:10:24: error: complex real part overflow
fixedbugs/issue11590.go:11:25: error: complex real part overflow
fixedbugs/issue11610.go:11:7: error: import path is empty
fixedbugs/issue11610.go:12:4: error: invalid character 0x3f in input file
fixedbugs/issue11610.go:14:1: error: expected identifier
fixedbugs/issue11610.go:14:1: error: expected type
fixedbugs/issue13248.go:13:1: error: expected operand
fixedbugs/issue13248.go:13:1: error: missing ‘)’
fixedbugs/issue13248.go:12:5: error: reference to undefined name ‘foo’
fixedbugs/issue13266.go:10:8: error: package name must be an identifier
fixedbugs/issue13266.go:10:8: error: expected ‘;’ or newline after package clause
fixedbugs/issue13266.go:10:8: error: expected declaration
fixedbugs/issue13365.go:14:19: error: index expression is negative
fixedbugs/issue13365.go:15:21: error: index expression is negative
fixedbugs/issue13365.go:16:22: error: index expression is negative
fixedbugs/issue13365.go:19:13: error: some element keys in composite literal are out of range
fixedbugs/issue13365.go:22:19: error: incompatible type for element 1 in composite literal
fixedbugs/issue13365.go:23:21: error: incompatible type for element 1 in composite literal
fixedbugs/issue13365.go:24:22: error: incompatible type for element 1 in composite literal
fixedbugs/issue13415.go:14:5: error: redefinition of ‘x’
fixedbugs/issue13415.go:14:5: note: previous definition of ‘x’ was here
fixedbugs/issue13415.go:14:5: error: ‘x’ declared but not used
fixedbugs/issue13471.go:12:25: error: floating-point constant truncated to integer
fixedbugs/issue13471.go:13:25: error: floating-point constant truncated to integer
fixedbugs/issue13471.go:14:25: error: floating-point constant truncated to integer
fixedbugs/issue13471.go:15:24: error: floating-point constant truncated to integer
fixedbugs/issue13471.go:16:23: error: floating-point constant truncated to integer
fixedbugs/issue13471.go:18:26: error: floating-point constant truncated to integer
fixedbugs/issue13471.go:19:26: error: floating-point constant truncated to integer
fixedbugs/issue13471.go:20:26: error: floating-point constant truncated to integer
fixedbugs/issue13471.go:21:25: error: floating-point constant truncated to integer
fixedbugs/issue13471.go:22:24: error: floating-point constant truncated to integer
fixedbugs/issue13471.go:24:24: error: floating-point constant truncated to integer
fixedbugs/issue13821b.go:18:12: error: incompatible types in binary expression
fixedbugs/issue13821b.go:19:13: error: incompatible types in binary expression
fixedbugs/issue13821b.go:20:13: error: incompatible types in binary expression
fixedbugs/issue13821b.go:21:13: error: incompatible types in binary expression
fixedbugs/issue13821b.go:22:13: error: incompatible types in binary expression
fixedbugs/issue13821b.go:24:12: error: incompatible types in binary expression
fixedbugs/issue14006.go:24:18: error: expected ‘;’ or ‘}’ or newline
fixedbugs/issue14006.go:30:18: error: expected ‘;’ or ‘}’ or newline
fixedbugs/issue14006.go:37:22: error: expected ‘;’ or ‘}’ or newline
fixedbugs/issue14006.go:43:22: error: expected ‘;’ or ‘}’ or newline
fixedbugs/issue14006.go:59:17: note: previous definition of ‘labelname’ was here
fixedbugs/issue14006.go:64:17: error: label ‘labelname’ already defined
fixedbugs/issue14006.go:24:17: error: value computed is not used
fixedbugs/issue14006.go:30:17: error: value computed is not used
fixedbugs/issue14006.go:37:20: error: value computed is not used
fixedbugs/issue14006.go:43:20: error: value computed is not used
fixedbugs/issue14006.go:59:17: error: label ‘labelname’ defined and not used
fixedbugs/issue14010.go:13:14: error: invalid left hand side of assignment
fixedbugs/issue14010.go:14:14: error: invalid left hand side of assignment
fixedbugs/issue14010.go:14:9: error: invalid use of type
fixedbugs/issue14321.go:30:10: error: method ‘F’ is ambiguous in type ‘C’
fixedbugs/issue14321.go:31:10: error: ‘G’ is ambiguous via ‘A’ and ‘B’
fixedbugs/issue14321.go:33:10: error: type ‘C’ has no method ‘I’
fixedbugs/issue9036.go:21:12: error: invalid prefix for floating constant
fixedbugs/issue9036.go:22:12: error: invalid prefix for floating constant
fixedbugs/issue9076.go:14:5: error: incompatible type in initialization (cannot use type uintptr as type int32)
fixedbugs/issue9076.go:15:5: error: incompatible type in initialization (cannot use type uintptr as type int32)
For issue9083.go avoid an error about a variable that is set but not used.
fixedbugs/issue9370.go:105:13: error: cannot use ‘_’ as value
fixedbugs/issue9370.go:106:13: error: cannot use ‘_’ as value
fixedbugs/issue9370.go:107:13: error: cannot use ‘_’ as value
fixedbugs/issue9370.go:108:13: error: cannot use ‘_’ as value
fixedbugs/issue9370.go:109:13: error: cannot use ‘_’ as value
fixedbugs/issue9370.go:110:13: error: cannot use ‘_’ as value
fixedbugs/issue9370.go:112:18: error: cannot use ‘_’ as value
fixedbugs/issue9370.go:113:18: error: cannot use ‘_’ as value
fixedbugs/issue9370.go:114:18: error: cannot use ‘_’ as value
fixedbugs/issue9370.go:115:18: error: cannot use ‘_’ as value
fixedbugs/issue9370.go:116:18: error: cannot use ‘_’ as value
fixedbugs/issue9370.go:117:18: error: cannot use ‘_’ as value
fixedbugs/issue9370.go:119:13: error: cannot use ‘_’ as value
fixedbugs/issue9370.go:119:18: error: cannot use ‘_’ as value
fixedbugs/issue9370.go:36:15: error: invalid comparison of non-ordered type
fixedbugs/issue9370.go:39:15: error: invalid comparison of non-ordered type
fixedbugs/issue9370.go:43:15: error: invalid comparison of non-ordered type
fixedbugs/issue9370.go:46:15: error: invalid comparison of non-ordered type
fixedbugs/issue9370.go:50:15: error: invalid comparison of non-ordered type
fixedbugs/issue9370.go:53:15: error: invalid comparison of non-ordered type
fixedbugs/issue9370.go:56:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:57:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:58:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:59:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:60:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:61:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:65:15: error: invalid comparison of non-ordered type
fixedbugs/issue9370.go:68:15: error: invalid comparison of non-ordered type
fixedbugs/issue9370.go:70:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:71:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:72:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:73:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:74:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:75:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:77:15: error: invalid operation (func can only be compared to nil)
fixedbugs/issue9370.go:78:15: error: invalid operation (func can only be compared to nil)
fixedbugs/issue9370.go:79:15: error: invalid comparison of non-ordered type
fixedbugs/issue9370.go:80:15: error: invalid operation (func can only be compared to nil)
fixedbugs/issue9370.go:81:15: error: invalid operation (func can only be compared to nil)
fixedbugs/issue9370.go:82:15: error: invalid comparison of non-ordered type
fixedbugs/issue9370.go:84:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:85:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:86:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:87:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:88:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:89:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:91:15: error: invalid operation (func can only be compared to nil)
fixedbugs/issue9370.go:92:15: error: invalid operation (func can only be compared to nil)
fixedbugs/issue9370.go:93:15: error: invalid comparison of non-ordered type
fixedbugs/issue9370.go:94:15: error: invalid operation (func can only be compared to nil)
fixedbugs/issue9370.go:95:15: error: invalid operation (func can only be compared to nil)
fixedbugs/issue9370.go:96:15: error: invalid comparison of non-ordered type
fixedbugs/issue9370.go:98:15: error: invalid operation (func can only be compared to nil)
fixedbugs/issue9370.go:99:15: error: invalid operation (func can only be compared to nil)
fixedbugs/issue9370.go:100:15: error: invalid comparison of non-ordered type
fixedbugs/issue9370.go:101:15: error: invalid operation (func can only be compared to nil)
fixedbugs/issue9370.go:102:15: error: invalid operation (func can only be compared to nil)
fixedbugs/issue9370.go:103:15: error: invalid comparison of non-ordered type
fixedbugs/issue9370.go:121:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:122:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:123:15: error: incompatible types in binary expression
fixedbugs/issue9370.go:124:15: error: incompatible types in binary expression
Change-Id: I4089de4919112b08f5f2bbec20f84fcc7dbe3955
Reviewed-on: https://go-review.googlesource.com/c/go/+/276832
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
go get -d golang.org/x/net@latest
go mod tidy
go mod vendor
go generate -run bundle std
The cmd module was updated as well, but go mod tidy undoes the change
because the x/net module doesn't contribute any packages to cmd module.
cmd/internal/moddeps.TestDependencyVersionsConsistent is happy with it:
// It's ok if there are undetected differences in modules that do not
// provide imported packages: we will not have to pull in any backports of
// fixes to those modules anyway.
Fixes #31192.
Updates #42498.
Change-Id: If303c9a7aa2ce8c2553fcb1ced7fccc9e6652ad6
Reviewed-on: https://go-review.googlesource.com/c/go/+/277012
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Damien Neil <dneil@google.com> Reviewed-by: Bryan C. Mills <bcmills@google.com>
Than McIntosh [Thu, 10 Dec 2020 13:44:44 +0000 (08:44 -0500)]
cmd/go, cmd/asm: pass -linkshared to assembler for shared linkage builds
When the -linkshared build mode is in effect, the Go command passes
the "-linkshared" command line option to the compiler so as to insure
special handling for things like builtin functions (which may appear
in a shared library and not the main executable). This patch extends
this behavior to the assembler, since the assembler may also wind up
referencing builtins when emitting a stack-split prolog.
Fixes #43107.
Change-Id: I56eaded79789b083f3c3d800fb140353dee33ba9
Reviewed-on: https://go-review.googlesource.com/c/go/+/276932
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Jay Conrod <jayconrod@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
Cherry Zhang [Wed, 9 Dec 2020 17:14:00 +0000 (12:14 -0500)]
cmd/link: reject too-large relocation addend on darwin/arm64
Mach-O relocation addend is signed 24-bit. If the addend
overflows, it is better to fail the build than emitting an
incorrect binary. (I'm still working on a fix.)
Updates #42738.
Change-Id: I647f0cd4f6b84d9ac75ef3bf36673bea01dfc211
Reviewed-on: https://go-review.googlesource.com/c/go/+/276694
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
Cherry Zhang [Wed, 9 Dec 2020 23:25:05 +0000 (18:25 -0500)]
cmd/link: truncate file after code signature
When external linking, in case that the external linker generates
a code signature with a different size (e.g. as it uses a
different identifier), truncate the file after rewriting the code
signature, to make sure that no bytes after the signature (which
will invalidate the signature).
Fixes #43105.
Change-Id: I732f949fedd6de42d9f3cf6d017f7ba3f4e59e7a
Reviewed-on: https://go-review.googlesource.com/c/go/+/276693
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
Rob Findley [Wed, 9 Dec 2020 11:10:52 +0000 (06:10 -0500)]
go/types: avoid endless recursion in the Comparable predicate
This is a port of CL 276374 from the dev.typeparams branch. Avoid an
endless recursion in Comparable by tracking types that have already been
considered.
Fixes #43088
Change-Id: I927b29ac544df9bfb5c8c04699d57fafe6cfff73
Reviewed-on: https://go-review.googlesource.com/c/go/+/276552
Run-TryBot: Robert Findley <rfindley@google.com>
Trust: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
Russ Cox [Thu, 29 Oct 2020 18:46:29 +0000 (14:46 -0400)]
all: update to use os.ReadDir where appropriate
os.ReadDir is a replacement for ioutil.ReadDir that returns
a slice of fs.DirEntry instead of fs.FileInfo, meaning it is the
more efficient form.
This CL updates call sites throughout the Go source tree
wherever possible. As usual, code built using the Go 1.4
bootstrap toolchain is not included. There is also a use in
go/build that appears in the public API and can't be changed,
at least not without additional changes.
Fixes #42026.
Change-Id: Icfc9dd52c6045020f6830e22c72128499462d561
Reviewed-on: https://go-review.googlesource.com/c/go/+/266366
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Dmitri Shuralyov [Wed, 9 Dec 2020 00:44:33 +0000 (19:44 -0500)]
runtime/metrics: simplify test to support more environments
go test sets the working directory to that of the package being tested,
so opening one of the package source files can be done in a simpler way.
This also allows the test to run in more environments, for example when
GOROOT_FINAL¹ is set.
Also remove the testenv.HasSrc-like check for Go source. The doc.go
file is a part of the package being built and tested, so it's expected
to be available. If it's important for this test to handle when a test
binary is built with go test -c and executed elsewhere without package
source files, something more than testenv.HasSrc would be needed.
Michael Fraenkel [Thu, 3 Dec 2020 00:07:27 +0000 (17:07 -0700)]
net/http: add connections back that haven't been canceled
Issue #41600 fixed the issue when a second request canceled a connection
while the first request was still in roundTrip.
This uncovered a second issue where a request was being canceled (in
roundtrip) but the connection was put back into the idle pool for a
subsequent request.
The fix is the similar except its now in readLoop instead of roundTrip.
A persistent connection is only added back if it successfully removed
the cancel function; otherwise we know the roundTrip has started
cancelRequest.
Fixes #42942
Change-Id: Ia56add20880ccd0c1ab812d380d8628e45f6f44c
Reviewed-on: https://go-review.googlesource.com/c/go/+/274973
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Trust: Damien Neil <dneil@google.com> Reviewed-by: Damien Neil <dneil@google.com>
Haoran Luo [Tue, 8 Dec 2020 14:29:04 +0000 (14:29 +0000)]
runtime: prevent stack growth after fork in runtime.sigfillset
This fixes the unexpected growth of stack in child process, which
is caused by stack checking code in runtime.sigfillset called from
runtime.sigset while clearing the signal handlers in child process.
The redundant stack checking code is generated due to missing
'//go:nosplit' directive that should be annotated for
runtime.sigfillset.
Fixes #43066
Updates #21314
Change-Id: I9483a962a4b0747074313991841e2440ee32198c
Reviewed-on: https://go-review.googlesource.com/c/go/+/276173
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Austin Clements <austin@google.com>
Keith Randall [Tue, 8 Dec 2020 22:07:19 +0000 (14:07 -0800)]
cmd/vet: vendor in x/tools, enable framepointer vet check
Vendor in latest x/tools.
Add framepointer vet check to vet.
Fixes #43014
Change-Id: Ife72f85b1261aa60c0028041c58040d60a40918a
Reviewed-on: https://go-review.googlesource.com/c/go/+/276372
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>