This signature uses the wrong type for the passed function, which
will be saved in the internal runtime map. Since the functions are
likely compatible (uint64 return versus int64), this may work but
should generally be fixed.
This is other instance of #58440.
Change-Id: Ied82e554745ef72eefeb5be540605809ffa06533
Reviewed-on: https://go-review.googlesource.com/c/go/+/470915
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
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Auto-Submit: Michael Pratt <mpratt@google.com>
This reduces unbounded shift latency by one cycle, and may
generate less instructions in some cases.
When there is a choice whether to use doubleword or word shifts, use
doubleword shifts. Doubleword shifts have fewer hardware scheduling
restrictions across P8/P9/P10.
Likewise, rework the shift sequence to allow the compare/shift/overshift
values to compute in parallel, then choose the correct value.
Some ANDCCconst rules also need reworked to ensure they simplify when
used for their flag value. This commonly occurs when prove fails to
identify a bounded shift (e.g foo32<<uint(x&31)).
Change-Id: Ifc6ff4a865d68675e57745056db414b0eb6f2d34
Reviewed-on: https://go-review.googlesource.com/c/go/+/442597
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Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
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Run-TryBot: Paul Murphy <murp@ibm.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
insertInlCall mistakenly uses the absolute line number of the call
rather than the relative line number (adjusted by //line). Switch to the
correct line number.
The call filename was already correct.
Fixes#58648
Change-Id: Id8d1848895233e972d8cfe9c5789a88e62d06556
Reviewed-on: https://go-review.googlesource.com/c/go/+/470876
Reviewed-by: Than McIntosh <thanm@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
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A later CL will add additional test cases for CallFile and CallLine with
a //line directive. The parameter/variable checks have nothing to do
with line numbers and will only serve to make the test more difficult to
follow, so split this single mega-test into two: one for testing
file/line and the other for testing parameters/variables.
There are a few additional minor changes:
1. A missing AttrName is now an error.
2. Check added for AttrCallLine, which was previously untested.
For #58648.
Change-Id: I35e75ead766bcf910c58eb20541769349841f2b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/470875
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Reviewed-by: Cherry Mui <cherryyz@google.com>
If you run make.bash on an arm system without GOARM set,
we sniff the local system to find the maximum default GOARM
that will actually work on that system. That's fine, and we can
keep doing that.
But the story for cross-compiling is weirder.
If we build a windows/amd64 toolchain and then use it to
cross-compile linux/arm binaries, we get GOARM=7 binaries.
Do the same on a linux/amd64 system and you get GOARM=5 binaries.
This clearly makes no sense, and worse it makes the builds
non-reproducible in a subtle way.
This CL simplifies the logic and improves reproducibility by
defaulting to GOARM=7 any time we wouldn't sniff the local system.
On go.dev/dl we serve a linux-armv6l distribution with a default GOARM=6.
That is built by setting GOARM=6 during make.bash, so it is unaffected
by this CL and will continue to be GOARM=6.
For #24904.
Change-Id: I4331709876d5948fd33ec6e4a7b18b3cef12f240
Reviewed-on: https://go-review.googlesource.com/c/go/+/470695
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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This CL marks some dragonfly assembly functions as NOFRAME to avoid
relying on the implicit amd64 NOFRAME heuristic, where NOSPLIT functions
without stack were also marked as NOFRAME.
Updates #58378
Change-Id: I832a1a78d68a49f11df3b03fa9d50d4796bcac03
Reviewed-on: https://go-review.googlesource.com/c/go/+/466355
Run-TryBot: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: Than McIntosh <thanm@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
If the user provides the -json flag to explicitly specify fields, but doesn't specify any *Embed* field, skip computing the embed fields.
This enhances the initial implementation of #29666.
Change-Id: I60e86fb25a445689aecbcc7f3f3f88e0f37a0fc5
GitHub-Last-Rev: 2795c195bf
GitHub-Pull-Request: golang/go#58522
Reviewed-on: https://go-review.googlesource.com/c/go/+/468075
Reviewed-by: Bryan Mills <bcmills@google.com>
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The existing ptrace wrapper accepts pointer argument as an uintptr which
often points to the memory allocated in Go. This violates unsafe.Pointer safety
rules.
Fixes#58387
Change-Id: Iab12122c495953f94ea00c2a61654a818a464205
Reviewed-on: https://go-review.googlesource.com/c/go/+/470299
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For #56986, run the new directive analyzer during 'go test',
to diagnose problems that would otherwise be missed,
like //go:debug appearing in the wrong place in a file
or in the wrong files.
Change-Id: I1ac230c3c67e58b5e584128e0ec6ff482cb225f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/464135
Run-TryBot: Russ Cox <rsc@golang.org>
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For #56986, change the go command to compute and set the
default GODEBUG settings for each main package, based on
the work module's go version and the //go:debug lines in the
main package.
Change-Id: I2118cf0ae6d981138138661e02120c05af648872
Reviewed-on: https://go-review.googlesource.com/c/go/+/453605
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For #56986, go/build needs to report up to cmd/go
about //go:debug lines found in the source code.
Rather than make a special case for //go:debug,
this change gathers all top-level directives above the
package line and includes them in the result.
The go command's module index must match go/build,
so this CL contains the code to update the index as well.
A future CL will use the //go:debug lines to prepare the default
GODEBUG settings, as well as rejecting such lines in non-main
packages.
Change-Id: I66ab8dc72f9cd65c503b10b744367caca233f8a6
Reviewed-on: https://go-review.googlesource.com/c/go/+/453603
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This allows for a large number of casts to be removed at call sites.
Change-Id: Id929f6c7155b0b59a2bcdf43144de95a007b8a48
Reviewed-on: https://go-review.googlesource.com/c/go/+/461139
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Reviewed-by: Eric Fang <eric.fang@arm.com>
Check for REGSP use before checking for invalid instructions. This simplifies
the code and avoids duplicated op generation.
Change-Id: I302e3b54a29742f2c48024b25162200f5966cfaa
Reviewed-on: https://go-review.googlesource.com/c/go/+/461138
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Reviewed-by: Cherry Mui <cherryyz@google.com>
When referring to an unspecified register, use obj.REG_NONE rather than 0.
This has the same result but is more readable.
Change-Id: I56b541a3abc3c2c0e3ce1de21a624da0b21c485a
Reviewed-on: https://go-review.googlesource.com/c/go/+/461137
Reviewed-by: Eric Fang <eric.fang@arm.com>
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omovlit never returns zero, so it does not make any sense to check for that.
Additionally, no other call site does this.
Change-Id: I5769dcdb557bed4ec4d727abe0869a1549fcf04c
Reviewed-on: https://go-review.googlesource.com/c/go/+/461136
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Eric Fang <eric.fang@arm.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
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Use = rather than |= when assigning to an op variable.
Change-Id: I142c9fb3aa6f4b48875710100c05ab640e21933a
Reviewed-on: https://go-review.googlesource.com/c/go/+/461135
Reviewed-by: Eric Fang <eric.fang@arm.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
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No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
For #47653Fixes#58642
Change-Id: I19fee0dc9bd6239b520c15182b8f1e57bb0049bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/470397
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Previously, when a program depends on cgo packages in the standard
library (e.g. net, os/user) but not otherwise use cgo, we default
to internal linking mode. As we shipped pre-built cgo-using packages
in Go distributions, we don't require a C compiler to build those
packages. Then, by using internal linking we can link programs
using those packages without requiring a C toolchain.
As of Go 1.20, we stopped shipping those pre-built packages. If a
user doesn't have a C toolchain, they will use the non-cgo version
of the package. If they have a C toolchain, they can get cgo-using
packages but they can link with the external linker as well. So
there is no strong need to be able to link the cgo version of the
packages without a C toolchain. This CL makes it default to
external linking mode.
Fixes#58619.
Fixes#58620.
Change-Id: I62d3744c2b82ce734813c0e303e417d85dd29868
Reviewed-on: https://go-review.googlesource.com/c/go/+/470298
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This CL marks some linux assembly functions as NOFRAME to avoid relying
on the implicit amd64 NOFRAME heuristic, where NOSPLIT functions
without stack were also marked as NOFRAME.
Updates #58378
Change-Id: I7792cff4f6e539bfa56c02868f2965088ca1975a
Reviewed-on: https://go-review.googlesource.com/c/go/+/466316
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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It's been years since the behavior here was changed, and there's
little point in continuing to warn users of it.
Fixes#49399
Change-Id: I95f64ca14cacb64ebe78296593b1cc3d837e6b77
Reviewed-on: https://go-review.googlesource.com/c/go/+/470315
Run-TryBot: Damien Neil <dneil@google.com>
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If the -h flag is specified, currently it makes Errorf panic, but
not Exitf. Do so for Exitf as well.
Change-Id: I3e8d8899fd439f7299be3f9e9a63993b04852a93
Reviewed-on: https://go-review.googlesource.com/c/go/+/470297
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Introduce a new SysProcAttr member called Jail on FreeBSD. This allows
supplying an existing jail's ID to which the child process is attached
before calling the exec system call.
Fixes#46259
Change-Id: Ie282e5b83429131f9a9e1e27cfcb3bcc995d1d4d
Reviewed-on: https://go-review.googlesource.com/c/go/+/458335
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Reviewed-by: Samuel Karp <samuelkarp@google.com>
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This initial release notes template is based on previous releases.
For #58645.
Change-Id: I8bae25d6dd9778a69963b8b4903a6dc1c180e15f
Reviewed-on: https://go-review.googlesource.com/c/go/+/470296
Run-TryBot: Than McIntosh <thanm@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
This reverts CL 428555.
Reason for revert: It appears that even a newer kernel can get
ENOSYS from copy_file_range.
Fixes#58592
Change-Id: Ib8dd1be61544f54bf652a99dc0b449109f8f50ed
Reviewed-on: https://go-review.googlesource.com/c/go/+/470016
Reviewed-by: Andy Pan <panjf2000@gmail.com>
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Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
When -test.fullpath flag is provided to go test,
go test displays the full file names in error messages.
Fixes#37708
Change-Id: I6096e75ed816fd42205810f20624e495047a73a2
Reviewed-on: https://go-review.googlesource.com/c/go/+/463837
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The current behavior for -mod=vendor is to let QueryPackages run and
fail from queryImport: "cannot query module due to -mod=vendor".
This has the side effect of allowing "go: finding module for package"
to be printed to stderr. Instead of this, return an error before
running QueryPackages.
Fixes#58417
Change-Id: Idc0ed33d1dd1bd185348da3a18ba8eb2dd225909
GitHub-Last-Rev: dd09deec0a
GitHub-Pull-Request: golang/go#58471
Reviewed-on: https://go-review.googlesource.com/c/go/+/467517
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Add internal linking support for calling SDYNIMPORT symbols on mips64. This adds
code to generate appropriate PLT and GOT entries, along with the various dynamic
entries needed for the dynamic loader.
Updates #36435, #46178
Change-Id: I783e0d028510ca2bca82bcbc745f2375770813fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/415815
Reviewed-by: Rong Zhang <rongrong@oss.cipunited.com>
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If a type parameter has the same name as a predeclared type, error
messages can be very confusing. In these rare cases, explicitly
point out where the type parameter is declared (types2) or that it
is a type parameter (go/types).
(We can't point out where the type parameter is declared in go/types
because we don't have access to the file set in the type writer at
the moment.)
Fixes#58611.
Change-Id: I5c150c2b0afae5fad320821e7e5935090dc2ef4c
Reviewed-on: https://go-review.googlesource.com/c/go/+/470075
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This change removes one of the two follow-on errors in the issue below.
For #58612.
Change-Id: If1eec5031e524bad33caa4a914f52e6a1e273b60
Reviewed-on: https://go-review.googlesource.com/c/go/+/470015
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Avoid passing Go pointers as uintptr in exec_unix_test.go by introducing
syscall.IoctlPtr() which accepts arg as unsafe.Pointer.
For #44834Fixes#58609
Change-Id: I6d0ded023e5f3c9989783aee7075bb88100d9ec2
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No test case because the problem can only happen for invalid data. Let
the fuzzer find cases like this.
For #47653Fixes#58603
Change-Id: I67fc45365c1a5b0b4b381f541bf2fee8ce8ddc3a
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testenv.Command sets a default timeout based on the test's deadline
and sends SIGQUIT (where supported) in case of a hang.
Change-Id: I84d469d12ca1f39175b713ca41e7cd2202d11d96
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This reverts CL 461958 and CL 465855.
Reason for revert: This introduced an irreconcilable inconsistency with Encode
Fixes#58391.
Change-Id: Ifd01a04d433b24c092b73e627b8149a5851c2bca
Reviewed-on: https://go-review.googlesource.com/c/go/+/469615
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Change-Id: I35c0fe4e7e11b694ef07687d5e0532a2ab9ba213
GitHub-Last-Rev: e0a28f4236
GitHub-Pull-Request: golang/go#58575
Reviewed-on: https://go-review.googlesource.com/c/go/+/469035
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The linux build tags were incorrectly removed from these files by CL 460538.
Restore the correct build tags so that they are only included in builds
for linux/mips* platforms.
Change-Id: I21d8802b0252688d8e2228cf904b47d90b253485
Reviewed-on: https://go-review.googlesource.com/c/go/+/469175
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Wait forever and let the test time out with a stack trace if the
expected response doesn't happen.
Fixes#57990
Change-Id: I835def63db113752cdd06e03e258cb10d63a6a25
Reviewed-on: https://go-review.googlesource.com/c/go/+/463222
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Previously, the write barrier calls themselves did the actual
writes to memory. Instead, move those writes out to a common location
that both the wb-enabled and wb-disabled code paths share.
This enables us to optimize the write barrier path without having
to worry about performing the actual writes.
Change-Id: Ia71ab651908ec124cc33141afb52e4ca19733ac6
Reviewed-on: https://go-review.googlesource.com/c/go/+/447780
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Future CLs will remove the invariant that pointers are always put in
the write barrier in pairs.
The behavior of the assembly code changes a bit, where instead of writing
the pointers unconditionally and then checking for overflow, check for
overflow first and then write the pointers.
Also changed the write barrier flush function to not take the src/dst
as arguments.
Change-Id: I2ef708038367b7b82ea67cbaf505a1d5904c775c
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The freebsd/riscv64 port was added in go1.20, make cmd/api aware of it and
backfill API files.
For #58582
Change-Id: I242b161cdb6221c8f60a1868c6435be26fca0078
Reviewed-on: https://go-review.googlesource.com/c/go/+/469135
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
cgo is built with -flto the symbols in runtime/cgo is going to include random numbers which would make builds unreproducible.
Settings -frandom-seeds ensures this is consistent across builds, and to ensure we always use a reproducible seed across builds we use the actionID as the seed string.
runtime/cgo built with "-frandom-seed=OFEc9OKoUMJwh3-5yFCH" would output the following:
$ strings --all --bytes=8 $WORK/b055/_pkg_.a | grep "gnu.lto_.profile"
.gnu.lto_.profile.8403a797
.gnu.lto_.profile.8403a797
.gnu.lto_.profile.8403a797
.gnu.lto_.profile.8403a797
.gnu.lto_.profile.8403a797
.gnu.lto_.profile.8403a797
.gnu.lto_.profile.8403a797
.gnu.lto_.profile.8403a797
.gnu.lto_.profile.8403a797
.gnu.lto_.profile.8403a797
.gnu.lto_.profile.8403a797
.gnu.lto_.profile.8403a797
Change-Id: I3c2d261a94f23c8227a922da9a7f81660905fd71
GitHub-Last-Rev: cec5162316
GitHub-Pull-Request: golang/go#58561
Reviewed-on: https://go-review.googlesource.com/c/go/+/468835
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
The freebsd/arm64 port was added in go1.14, make cmd/api aware of it and
backfill API files.
For #58582
Change-Id: I8b25c6cf5a66611d90d225762b257679a4abface
Reviewed-on: https://go-review.googlesource.com/c/go/+/469115
Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Dmitri Goutnik <dgoutnik@gmail.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
