There are 16 bytes reduced.
Change-Id: I33ca96fd22002b3111f0462c3029d70df48adb6e
GitHub-Last-Rev: 8df56a9655
GitHub-Pull-Request: golang/go#67055
Reviewed-on: https://go-review.googlesource.com/c/go/+/581935
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Auto-Submit: Ian Lance Taylor <iant@google.com>
This change modifies the commands in cmd to open counter files,
increment invocations counters and to increment counters for the names
of the flags that were passed in.
cmd/pprof and cmd/vet are both wrappers around tools defined in other
modules which do their own flag processing so we can't directly
increment flag counters right after flags are parsed. For those two
commands we wait to increment counters until after the programs have
returned.
cmd/dist is built with the bootstrap go so it can't depend on telemetry
yet. We can add telemetry support to it once 1.23 is the minimum
bootstrap version.
For #58894
Change-Id: Ic7f6009992465e55c56ad4dc6451bcb1ca51374a
Reviewed-on: https://go-review.googlesource.com/c/go/+/585235
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Commands run:
go get golang.org/x/telemetry@7d78a97
go mod tidy
go mod vendor
Change-Id: Iea0fbe11bcc69fac35fba0ee3d02cd14344a3ee9
Reviewed-on: https://go-review.googlesource.com/c/go/+/585455
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go get golang.org/x/mod@c0bdc7bd
go mod tidy
go mod vendor
Pulls in CL 584300.
For #65573.
Change-Id: Ia8ec86e2ee049b911fcf09d57f83972786b0470d
Reviewed-on: https://go-review.googlesource.com/c/go/+/584475
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Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Trying to write a test for the corner cases in the old async timer chan
implementation may have been a mistake, especially since this isn't
going to be the default timer chan implementation anymore.
But let's try one more time to fix the test.
I reproduced the remaining builder failures on my Mac laptop
by overloading the CPU in one window and then running 48 instances
of the flaky test in loops using 'stress' in another window.
It turns out that, contrary to my understanding of async timers
and therefore contrary to what the test expected, it is technically
possible for
t := time.NewTicker(1)
t.Reset(1000*time.Hour)
<-t.C
<-t.C
to observe two time values on t.C, as opposed to blocking forever.
We always expect the first time value, since the ticker goes off
immediately (after 1ns) and sends that value into the channel buffer.
To get the second value, the ticker has to be in the process of
going off (which it is doing constantly anyway), and the timer
goroutine has to be about to call sendTime and then get rescheduled.
Then t.Reset and the first <-t.C have to happen.
Then the timer goroutine gets rescheduled and can run sendTime's
non-blocking send on t.C, which finds an empty buffer and writes
a value.
This is unlikely, of course, but it definitely happens. This program
always panics in just a second or two on my laptop:
package main
import (
"os"
"time"
)
func main() {
os.Setenv("GODEBUG", "asynctimerchan=1")
for {
go func() {
t := time.NewTicker(1)
t.Reset(1000*time.Hour)
<-t.C
select {
case <-t.C:
panic("two receives")
case <-time.After(1*time.Second):
}
}()
}
}
Because I did not understand this nuance, the test did not expect it.
This CL rewrites the test to expect that possibility. I can no longer
make the test fail under 'stress' on my laptop.
For #66322.
Change-Id: I15c75d2c6f24197c43094da20d6ab55306a0a9f1
Reviewed-on: https://go-review.googlesource.com/c/go/+/585359
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
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Add a blurb to the toolchain section talking about stack slot merging.
Updates #62737.
Change-Id: I26193a6a381c95ff5d79ce80b77c10c7561d00cc
Reviewed-on: https://go-review.googlesource.com/c/go/+/581439
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Reviewed-by: Cherry Mui <cherryyz@google.com>
This patch changes the Go linker to "clean" (reset to Unix epoch) the
timestamps on object files copied to the tmpdir that is presented to
the external linker or archive tool. The intent is to improve build
reproducibility on Darwin, where later versions of xcode seem to want
to incorporate object file timestamps into the hash used for the final
build ID (which precludes the possibility of having reproducible Go
builds). Credit for this idea goes to Cherry (see
https://github.com/golang/go/issues/64947#issuecomment-1887667189).
Updates #64947.
Change-Id: I2eb7dddff538e247122b04fdcf8a57c923f61201
Reviewed-on: https://go-review.googlesource.com/c/go/+/585355
Reviewed-by: Cherry Mui <cherryyz@google.com>
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If unpadded content was passed, in some occassions content was omitted,
because the division result was floored. Ceiling it makes sure all
content is always read.
Fixes#65166
Change-Id: I1d8ee7ef436080483ed8f0e615b70a1013455f92
Reviewed-on: https://go-review.googlesource.com/c/go/+/581415
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
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Change-Id: Ia5bcaba47da949583a720ca3506d6bd9e3794824
GitHub-Last-Rev: 1ed3dad2bf
GitHub-Pull-Request: golang/go#67320
Reviewed-on: https://go-review.googlesource.com/c/go/+/584996
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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CL 584995 made Addr.AsSlice inlineable as a side effect. Make sure we
don't regress.
Updates #56136
Change-Id: Ib5f77a430db66ffe45c4cbb264da7a401945fec9
Reviewed-on: https://go-review.googlesource.com/c/go/+/585057
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Change-Id: Idea4f92d511b5f18531758667cb0cb5ed6f91a0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/584359
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Change-Id: Ic00e63aa35bcea4c97a5885d61edb8fc37d84e22
GitHub-Last-Rev: 1ad3a5d0ed
GitHub-Pull-Request: golang/go#67324
Reviewed-on: https://go-review.googlesource.com/c/go/+/584997
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Package documentation of encoding/csv says:
> this package supports the format described in RFC 4180.
According to section 2 of RFC 4180:
> Each record is located on a separate line, delimited by a line break (CRLF).
On the other hand, Writer uses LF (not CRLF) as newline character by default.
> If [Writer.UseCRLF] is true, the Writer ends each output line with \r\n instead of \n.
Strictly speaking, this behavior is different from RFC 4180.
Package documentation would improve if we clarify that point.
Change-Id: I120e9332b593e1ac9ed8e49f6f8419ea88efc57d
GitHub-Last-Rev: 489167eb04
GitHub-Pull-Request: golang/go#67290
Reviewed-on: https://go-review.googlesource.com/c/go/+/584835
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Change-Id: Id07f16d14133ee539bc2880b39641c42418fa6e2
GitHub-Last-Rev: 7b327d508f
GitHub-Pull-Request: golang/go#67319
Reviewed-on: https://go-review.googlesource.com/c/go/+/585016
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Fixes: #67184
Change-Id: Ibdf3810cbba30ae29f466f7f95f357e8512f228b
GitHub-Last-Rev: 5eabc760be
GitHub-Pull-Request: golang/go#67185
Reviewed-on: https://go-review.googlesource.com/c/go/+/583299
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Updates #54097
Change-Id: I827a5efd1736ce057b76f079466f2d9ead225898
GitHub-Last-Rev: 40af10469d
GitHub-Pull-Request: golang/go#67321
Reviewed-on: https://go-review.googlesource.com/c/go/+/585017
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
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This will automatically use a response file if ldflags is long,
avoiding "argument list too long" errors with a very large CGO_LDFLAGS.
Fixes#66456
Change-Id: I5f9ee86e03b4e6d6430f7f9d8357ef37a9c22465
Reviewed-on: https://go-review.googlesource.com/c/go/+/584655
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
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Use frame pointer unwinding, where supported, to collect call stacks for
the block, and mutex profilers. This method of collecting call stacks is
typically an order of magnitude faster than callers/tracebackPCs. The
marginal benefit for these profile types is likely small compared to
using frame pointer unwinding for the execution tracer. However, the
block profiler can have noticeable overhead unless the sampling rate is
very high. Additionally, using frame pointer unwinding in more places
helps ensure more testing/support, which benefits systems like the
execution tracer which rely on frame pointer unwinding to be practical
to use.
Change-Id: I4b36c90cd2df844645fd275a41b247352d635727
Reviewed-on: https://go-review.googlesource.com/c/go/+/533258
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Reviewed-by: Michael Pratt <mpratt@google.com>
fpunwindExpand currently allocates a new slice to hold the expanded call
stack. In each place it's used, the resulting slice won't be needed
immediately afterward, so the allocation is wasteful. Refactor
fpunwindExpand to instead expand the call stack into a provided buffer.
Change-Id: I05b26c191a8f76404c21ccbe3bd422325540425b
Reviewed-on: https://go-review.googlesource.com/c/go/+/543715
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Cherry Mui <cherryyz@google.com>
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This also as a side effect fixes#56136 because internal/byteorder
package has a special treatment in the inliner.
Fixes#56136
Change-Id: Ib90eb716f7a67659fb4cea7e99c14cf7e819ef7b
GitHub-Last-Rev: a78d8f6fee
GitHub-Pull-Request: golang/go#67317
Reviewed-on: https://go-review.googlesource.com/c/go/+/584995
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
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In the three formats corresponding to case 7 of the function asmout, BREAK actually
corresponds to the cacop instruction of Loong64, refer to the loong64 instruction
manual volume 1 [1], the cacop instruction is a privileged instruction used to
maintain the cache, and the user mode does not have permission to execute.
Referring to the loong64 instruction manual volume 1 [1], the SYSCALL, BREAK and DBAR
instructions have similar formats and can be grouped into one category, the RDTIMED,
RDTIMELW and RDTIMEHW instructions can be grouped into one category, and the NOOP and
UNDEF instructions can be grouped into one category.
[1]: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html
Change-Id: I0b8998270102d1557fc2b2410cf8c0b078bd0c2e
Reviewed-on: https://go-review.googlesource.com/c/go/+/493435
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Cherry Mui <cherryyz@google.com>
Commands run
go get golang.org/x/telemetry@51e8b5d
go mod tidy
go mod vendor
Change-Id: Ie11f207d25902c3ef932237eec66bdd586564fc0
Reviewed-on: https://go-review.googlesource.com/c/go/+/584237
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Change-Id: I58c24a58a7b32d3f8d544509db04baac1ea1b56e
GitHub-Last-Rev: 7a648fda00
GitHub-Pull-Request: golang/go#67318
Reviewed-on: https://go-review.googlesource.com/c/go/+/585015
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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These primitives will be used by the new And/Or sync/atomic apis.
Implemented for mips/mipsle and mips64/mips64le.
For #61395
Change-Id: Icc604a2b5cdfe72646d47d3c6a0bb49a0fd0d353
GitHub-Last-Rev: 95dca2a9f1
GitHub-Pull-Request: golang/go#63297
Reviewed-on: https://go-review.googlesource.com/c/go/+/531835
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
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Adds runtime.debugPinnerV1 which returns a runtime.Pinner object that
pins itself. This is intended to be used by debuggers in conjunction
with runtime.debugCall to keep heap memory reachable even if it isn't
referenced from anywhere else.
Change-Id: I508ee6a7b103e68df83c96f2e04a0599200300dc
Reviewed-on: https://go-review.googlesource.com/c/go/+/558276
Reviewed-by: Cherry Mui <cherryyz@google.com>
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It's broken with the latest XCode versions, and is also already disabled
on darwin builders. Disable the test to get go test cmd/go working on
local builds again.
For #64947
Change-Id: I5a4b46cf23cbe887df4903f90b54cd2225f51233
Reviewed-on: https://go-review.googlesource.com/c/go/+/584937
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The gotoolchain_issue66175 script test would fail if a binary named
go1.21 or go1.22 was present in the system PATH. Clear the path at the
beginning of the test to make it independent of the system path.
Fixes#67277
Change-Id: I6d9133aee5b20ab116e07b659e8ecf3eb8add4ed
Reviewed-on: https://go-review.googlesource.com/c/go/+/584258
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Change-Id: Iaaf2e9dbcffb4b1944817b0a4aaecd3554ebfec1
GitHub-Last-Rev: f4ec85a05e
GitHub-Pull-Request: golang/go#67280
Reviewed-on: https://go-review.googlesource.com/c/go/+/584695
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Currently in a lot of packages we define functions for appending/decoding
mostly BigEndian data (see internal/chacha8rand, net/netip,
internal/boring/sha, hash/crc64, and probably more), because we don't
want to depend on encoding/binary, because of #54097.
This change introduces a new package internal/byteorder, that
will allow us to remove all of the functions and replace them with
internal/byteorder.
Updates #54097
Change-Id: I03e5ea1eb721dd98bdabdb25786f889cc5de54c5
GitHub-Last-Rev: 3f07d3dfb4
GitHub-Pull-Request: golang/go#67183
Reviewed-on: https://go-review.googlesource.com/c/go/+/583298
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Chunk returns an iterator over consecutive sub-slices of up to n elements of s.
Fixes#53987.
Change-Id: I508274eca388db39550eb9e4d8abd5ce68d29d8d
Reviewed-on: https://go-review.googlesource.com/c/go/+/562935
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Go API is defined through exported symbols. When a package is
imported, the compiler ensures that only exported symbols can be
accessed, and the go command ensures that internal packages cannot
be imported. This ensures API integrity. But there is a hole:
using linkname, one can access internal or non-exported symbols.
Linkname is a mechanism to give access of a symbol to a package
without adding it to the public API. It is intended for coupled
packages to share some implementation details, or to break
circular dependencies, and both "push" (definition) and "pull"
(reference) sides are controlled, so they can be updated in sync.
Nevertheless, it is abused as a mechanism to reach into internal
details of other packages uncontrolled by the user, notably the
runtime. As the other package evolves, the code often breaks,
because the linknamed symbol may no longer exist, or change its
signature or semantics.
This CL adds a mechanism to enforce the integrity of linknames.
Generally, "push" linkname is allowed, as the package defining
the symbol explicitly opt in for access outside of the package.
"Pull" linkname is checked and only allowed in some circumstances.
Given that there are existing code that use "pull"-only linkname
to access other package's internals, disallowing it completely is
too much a change at this point in the release cycle. For a start,
implement a hard-coded blocklist, which contains some newly added
internal functions that, if used inappropriately, may break memory
safety or runtime integrity. All blocked symbols are newly added
in Go 1.23. So existing code that builds with Go 1.22 will
continue to build.
For the implementation, when compiling a package, we mark
linknamed symbols in the current package with an attribute. At
link time, marked linknamed symbols are checked against the
blocklist. Care is taken so it distinguishes a linkname reference
in the current package vs. a reference of a linkname from another
package and propagated to the current package (e.g. through
inlining or instantiation).
Symbol references in assembly code are similar to linknames, and
are treated similarly.
Change-Id: I8067efe29c122740cd4f1effd2dec2d839147d5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/584598
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Running with few threads usually does not need 500ms to crash, so let it
crash as soon as possible. While the test may caused more time on slow
machine, try to expand the sleep time in test.
Updates #64752
Change-Id: I635fab846bd5e1735808d4d47bb9032d5a04cc2b
GitHub-Last-Rev: 84f3844ac0
GitHub-Pull-Request: golang/go#65018
Reviewed-on: https://go-review.googlesource.com/c/go/+/554615
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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See CL 557596, according to the go specification,
the iterated variable type should
be the same as the iterated integer type.
For #66056
Change-Id: I96c87440328c2c50c40d76ecf2f222a331be1ce9
GitHub-Last-Rev: 8f80e401e5
GitHub-Pull-Request: golang/go#67269
Reviewed-on: https://go-review.googlesource.com/c/go/+/584516
Reviewed-by: Ian Lance Taylor <iant@google.com>
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This patch fixes a problem with how the .dynamic and .got sections are
handled during PIE linking on ELF targets. These sections were being
given addresses that overlapped with the .data.rel.ro section, which
resulted in binaries that worked correctly but confused the binutils
"strip" tool (which, confusingly, produced non-working stripped output
when used on Go PIE binaries without returning a non-zero exit
status). The new RELRO PIE code path preserves .dynamic and .got as
their own independent sections, while ensuring that they make it into
the RELRO segment. A new test verifies that we can successfully strip
and run Go PIE binaries, and also that we don't wind up with any
sections whose address ranges overlap.
Fixes#67261.
Updates #45681.
Change-Id: If874be05285252a9b074d4a1fc6a4023b9a28b5e
Reviewed-on: https://go-review.googlesource.com/c/go/+/584595
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Change-Id: I8c5c0831b94261c5880ca22b7ea52cce034d88f1
GitHub-Last-Rev: 5fd119d4e8
GitHub-Pull-Request: golang/go#67248
Reviewed-on: https://go-review.googlesource.com/c/go/+/583876
Auto-Submit: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
They are editor backup files. They are ignored by .gitignore,
so they can never be real files in the Go repo.
Change-Id: I58800e6e9f939e0bd21b086243b9260bcc8cd770
Reviewed-on: https://go-review.googlesource.com/c/go/+/584675
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Change-Id: Ic88ef6b60b5a772865603971411fd5d37ef45006
Reviewed-on: https://go-review.googlesource.com/c/go/+/584656
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
