This makes it easier to click around in documentation on pkg.go.dev.
Change-Id: Idc67c312bc72c612e660607e5400b43ecc110bc1
Reviewed-on: https://go-review.googlesource.com/c/go/+/514895
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Older s390x before z13 did not have support to carry out floating point operations i.e. they didn't have the support for vector instructions like VX/VL, etc.
Starting with Go1.19, z13 is the minimum hardware level for running Go on LoZ (s390x). The main cause of this issue was the refactoring of elliptic curve to internal/nistec. The new code structures made it difficult to dynamically switch implementations at runtime, so it became necessary (in order machines to continue to use the accelerated implementation) to require z13 as the minimum hardware.
Hence, Go programs, when run on unsupported hardware, should crash on startup instead of crashing out in crypto code.
Fixes: #58465
Change-Id: I7c1a816205d19b5ddd2f1464839d16fa96815384
Reviewed-on: https://go-review.googlesource.com/c/go/+/499495
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It is the responsibility of go/types to complete any interface it
creates, except for those created by the user using NewInterface.
However, this was not being done for interfaces created during
instantiation.
Fix this by (rather carefully) ensuring that all newly created
interfaces are eventually completed.
Fixesgolang/go#61561
Change-Id: I3926e7c9cf80714838d2c1b5f36a2d3221c60c41
Reviewed-on: https://go-review.googlesource.com/c/go/+/513015
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We're not going to disable this functionality as it would
invalidate code that now type-checks with type inference
based on this mechanism.
Change-Id: Ib11059e2f70a5a209693b06f754cba862e3650ec
Reviewed-on: https://go-review.googlesource.com/c/go/+/514715
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This CL uses mips hardware NOP instruction as NOOP on mips platform, instead of pseudo NOP "nor $zero,$zero,$zero".
Change-Id: I336e1ba4228b71e6bfc6be66b367a4327fb3b36e
Reviewed-on: https://go-review.googlesource.com/c/go/+/509015
Reviewed-by: David Chase <drchase@google.com>
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For #60088
Change-Id: Ibc3983ca5cfe396087ddfa96c43cfe32ca47129a
Reviewed-on: https://go-review.googlesource.com/c/go/+/514640
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Run-TryBot: Ian Lance Taylor <iant@google.com>
For #60088
Change-Id: I2e471c76de62944b14472966b63f5778124b9b8b
Reviewed-on: https://go-review.googlesource.com/c/go/+/514655
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Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
For #60088
Change-Id: Ib2589b994d304cca1f2e2081639959d80818ac7f
Reviewed-on: https://go-review.googlesource.com/c/go/+/514639
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The built-in function `min` has been implemented and can now be used to replace some manually written `minType` helper functions.
Change-Id: Ie8ffc7881c8652ece752751214f1242bf76a6e7e
GitHub-Last-Rev: 5db344f131
GitHub-Pull-Request: golang/go#60866
Reviewed-on: https://go-review.googlesource.com/c/go/+/504315
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Reviewed-by: qiulaidongfeng <2645477756@qq.com>
Trim s[:len(b)-1] rather than s[:len(b)], since s[len(b)-1] is '/'.
Change-Id: I055da555810c112774549bd13d4faa8bfa0a60dc
GitHub-Last-Rev: 457977514d
GitHub-Pull-Request: golang/go#60729
Reviewed-on: https://go-review.googlesource.com/c/go/+/502376
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This avoids several mildly confusing Elem calls.
For #60088
Change-Id: If7b83d2ab10537c7e886a035b43cb272130c1669
Reviewed-on: https://go-review.googlesource.com/c/go/+/514455
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Fixes#61651
Change-Id: I27d581719e6bf38910f9d47dcf023bbff74ddf72
Reviewed-on: https://go-review.googlesource.com/c/go/+/514037
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Reviewed-by: Austin Clements <austin@google.com>
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This function checks Request.Form, which now includes values parsed from a PATCH request.
Fixes#60585
Change-Id: Icb095d9ac2f8b0c5dbf313e507ed838cb941517f
GitHub-Last-Rev: 3a477ea97e
GitHub-Pull-Request: golang/go#61591
Reviewed-on: https://go-review.googlesource.com/c/go/+/513435
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Currently the only named capture supported by regexp is (?P<name>a).
The syntax (?<name>a) is also widely used and there is currently an effort from
the Rust regex and RE2 teams to also accept this syntax.
Fixes#58458
Change-Id: If22d44d3a5c4e8133ec68238ab130c151ca7c5c5
GitHub-Last-Rev: 31b50e6ab4
GitHub-Pull-Request: golang/go#61624
Reviewed-on: https://go-review.googlesource.com/c/go/+/513838
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Arrays, structs, and complex numbers are collections of values that
are handled separately by the memory model.
An earlier version may have said this, but the current version does not.
Say it.
Change-Id: If3928bed6659e58e688f88aa0dde05423cbb3820
Reviewed-on: https://go-review.googlesource.com/c/go/+/514476
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Handle the case of one error at the beginning.
Use unsafe.String to avoid memory allocation when converting byte slice to string.
Change-Id: Ib23576f72b1d87489e6f17762be483f62ca4998a
GitHub-Last-Rev: ed8003bfbc
GitHub-Pull-Request: golang/go#60026
Reviewed-on: https://go-review.googlesource.com/c/go/+/493237
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Fixes#61644
Change-Id: I7d40c33e65221994bb6865d22dd0994545603ba8
GitHub-Last-Rev: aca92afcbd
GitHub-Pull-Request: golang/go#61649
Reviewed-on: https://go-review.googlesource.com/c/go/+/514075
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benchmark old ns/op new ns/op delta
BenchmarkUnmarshalMap-10 218 172 -21.28%
benchmark old allocs new allocs delta
BenchmarkUnmarshalMap-10 15 12 -20.00%
benchmark old bytes new bytes delta
BenchmarkUnmarshalMap-10 328 256 -21.95%
Change-Id: Ie20ab62731c752eb0040c6d1591fedd7d12b1e0c
Reviewed-on: https://go-review.googlesource.com/c/go/+/514100
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Fixes#61629
This reduce the pressure on regalloc because then the loop only keep alive
one value (the iterator) instead of the iterator and the upper bound since
the comparison now acts against an immediate, often zero which can be skipped.
This optimize things like:
for i := 0; i < n; i++ {
Or a range over a slice where the index is not used:
for _, v := range someSlice {
Or the new range over int from #61405:
for range n {
It is hit in 975 unique places while doing ./make.bash.
Change-Id: I5facff8b267a0b60ea3c1b9a58c4d74cdb38f03f
Reviewed-on: https://go-review.googlesource.com/c/go/+/512935
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Also Go2 -> v2
Change-Id: Icde8ffc4a1ee2e43241a3dcd00ff0c48992b1e25
Reviewed-on: https://go-review.googlesource.com/c/go/+/514175
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
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The method AddFS can be used to add the contents of a fs.FS filesystem
to a zip archive.
This method walks the directory tree starting at the root of the filesystem
and adds each file to the archive.
Fixes#54898
Change-Id: I80511cbd91a1d7e09ee52d2d1b09fb5eed25f45f
GitHub-Last-Rev: 1e17f2e6ba
GitHub-Pull-Request: golang/go#61602
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Rather than passing registers as uint32, use int16 and cast to uint32 in
the OP_FRRR/OP_SRR implementation. This allows a large number of casts to be
removed and code simplified at call sites.
Change-Id: Ia4bf3bd022f79d65e45fca64db13db12739e5b23
Reviewed-on: https://go-review.googlesource.com/c/go/+/514099
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Rather than passing registers as uint32, use int16 and cast to uint32 in
the OP_IRR implementation. This allows a large number of casts to be removed
and code simplified at call sites. Also be more consistent with op, register
and value ordering.
Change-Id: I510347d97787ce80a338037b25470addf3a2939d
Reviewed-on: https://go-review.googlesource.com/c/go/+/514098
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Auto-Submit: Ian Lance Taylor <iant@golang.org>
Rather than passing registers as uint32, use int16 and cast to uint32 in
the OP_RRR implementation. This allows a large number of casts to be removed
and code simplified at call sites.
Change-Id: I2194ea07a6f89861530cd88c4b60c993bb0fa0c1
Reviewed-on: https://go-review.googlesource.com/c/go/+/514097
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
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Instead of comparing register values to 0, use obj.REG_NONE to improve
readability. No functional change.
Change-Id: I848f7ab7e27fe7e5e9fe2caf9cce47e372c6cd6c
Reviewed-on: https://go-review.googlesource.com/c/go/+/514096
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This is a band-aid of a fix for Go 1.21, to create space to work on
a real fix for Go 1.22, if in fact the real fix is different. It simply
disables the go.sum update check during go list -m -u.
I don't have a self-contained test for the breakage. See #61605.
All existing tests continue to pass.
For #61605.
After merging into the Go 1.21 branch we can move #61605 to the Go 1.22 milestone.
Change-Id: Ib155710092003f08d2a6ce0aefa8e0270cad5a5c
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When dynamic linking on darwin, the darwin linker doesn't link
relocations pointing to zero-sized local symbols, like our
start/end marker symbols, e.g. runtime.text and runtime.etext.
It will choose to resolve to another symbol on the same address
that may not be local, therefore that reference may point to a
different DSO, which is not what we want. We already fix up some
marker symbols, like text/etext, data/edata, bss/ebss. But we
currently don't fix up noptrdata and noptrbss. With the new
darwin linker ld-prime, this causes problems when building a
plugin. Fix up those symbols.
For #61229.
Change-Id: I2181bb9184b85af9a3c3f5dc6d78e4d5a1d56d53
Reviewed-on: https://go-review.googlesource.com/c/go/+/503538
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In Mach-O object files, there are two kinds of relocations:
"external" relocation, which targets a symbol, and "non-external"
relocation, which targets a section. For targeting symbols not in
the current object, we must use symbol-targeted relocations. For
targeting symbols defined in the current object, for some
relocation types, both kinds can be used. We currently use
section-targeted relocations for R_ADDR targeting locally defined
symbols.
Modern Apple toolchain seems to prefer symbol-targeted relocations.
Also, Apple's new linker, ld-prime, seems to not handle section-
targeted relocations well in some cases. So this CL switches to
always generate symbol-targeted relocations. This also simplifies
the code.
One exception is that DWARF tools seem to handle only section-
targeted relocations. So generate those in DWARF sections.
This CL supersedes CL 502616.
Fixes#60694.
For #61229.
Change-Id: I3b74df64f21114635061bcd89114392b3a2d588b
Reviewed-on: https://go-review.googlesource.com/c/go/+/503935
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Apple's new linker, ld-prime from Xcode 15 beta, when handling
initializers in __mod_init_func, drops the offset in the data,
resolving the relocation to the beginning of the section. The
latest version of ld-prime rejects non-zero addend. We need to use
symbol-targeted "external" relocations, so that it doesn't need
an addend and can be resolved correctly. This also works fine with
ld64.
Fixes#60694.
For #61229.
Change-Id: Ida2be6aa4c91bfcd142b755e2ec63aabfbbd77a6
Reviewed-on: https://go-review.googlesource.com/c/go/+/502616
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This CL refactors gopanic, Goexit, and deferreturn to share a common
state machine for processing pending defers. The new state machine
removes a lot of redundant code and does overall less work.
It should also make it easier to implement further optimizations
(e.g., TODOs added in this CL).
Change-Id: I71d3cc8878a6f951d8633505424a191536c8e6b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/513837
Reviewed-by: Keith Randall <khr@golang.org>
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The previous implementation would limit itself to 0xfff000 | 0xfff << shift,
while the maximum possible value is 0xfff000 + 0xfff << shift. In practical
terms, this means that an additional ((1 << shift) - 1) * 0x1000 of offset
is reachable for operations that use this splitting format. In the case of
an 8 byte load/store, this is an additional 0x7000 that can be reached
without needing to use the literal pool.
Updates #59615
Change-Id: Ice7023104042d31c115eafb9398c2b999bdd6583
Reviewed-on: https://go-review.googlesource.com/c/go/+/512540
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Change-Id: I0d4ccbc396c48d565c0cbe93c9558ab330a44d02
Reviewed-on: https://go-review.googlesource.com/c/go/+/513275
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In a number of load and store cases, the use of the literal pool can be
entirely avoided by simply adding or subtracting the offset from the
register. This uses the same number of instructions, while avoiding a
load from memory, along with the need for the value to be in the literal
pool. Overall this reduces the size of binaries slightly and should have
lower overhead.
Updates #59615
Change-Id: I9cb6a403dc71e34a46af913f5db87dbf52f8688c
Reviewed-on: https://go-review.googlesource.com/c/go/+/512539
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Currently, pool literals are added when they are not needed, namely
in the case where the offset is a 24 bit unsigned scaled immediate.
By improving the classification of loads and stores, we can avoid
generating unused pool literals. However, more importantly this
provides a basis for further improvement of the load and store
code generation.
Updates #59615
Change-Id: Ia3bad1709314565a05894a76c434cca2fa4533c4
Reviewed-on: https://go-review.googlesource.com/c/go/+/512538
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Fixes#60088
Change-Id: I7b43d329def22c2524501ba1d6bfc73becc823d1
GitHub-Last-Rev: becd714c45
GitHub-Pull-Request: golang/go#61598
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benchmark old ns/op new ns/op delta
BenchmarkMapsDeepEqual-10 235 200 -15.05%
benchmark old allocs new allocs delta
BenchmarkMapsDeepEqual-10 7 6 -14.29%
benchmark old bytes new bytes delta
BenchmarkMapsDeepEqual-10 96 48 -50.00%
Change-Id: Ifa625ad25524cc9ee438711917606626b33a9597
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CL 496037 had ignored 3 types of null route, however blackhole route
is not included i.e. on Linux we can add a blackhole route by
`ip route add blackhole 198.18.0.254/32`
Fixes#61590
Change-Id: I9ddb86c5be0e5e261afa96cbaf55d9fdf30b2795
Reviewed-on: https://go-review.googlesource.com/c/go/+/513595
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: M Zhuo <mzh@golangcn.org>
Change-Id: I534698008b46b23352d9f1fed891fd96dc0947b7
Reviewed-on: https://go-review.googlesource.com/c/go/+/507115
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
The dist test name changed from "race" to "flag:race", "net:race",
"os:race" and so on in CL 496181, we missed that this skip was checking
the exact dist test name, and no builder reported a problem despite the
skip becoming inactive.
I considered deleting it as obsolete, but it may still be helpful
if someone runs race.bash on a linux/arm64 machine configured with
something other than the supported 48-bit VMA. So for now apply a
simple change to restore the existing skip.
Hopefully one day there will be a good way to check for unsupported VMA
size and disable the race detector conditionally instead of relying on
tests running, failing, and getting marked as skipped in cmd/dist.
For #29948.
For #37486.
Change-Id: I8af6862c92fb0ee538ab27327d43c50921bd1873
Reviewed-on: https://go-review.googlesource.com/c/go/+/512116
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
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Reviewed-by: Austin Clements <austin@google.com>
Document work fields a bit more, and move code that
synthesizes JSON-encoded skip events to testjson.go.
For #37486.
For #61557.
Change-Id: Iffc23cf990bc39696e1e3fce8ce5a6790fc44e78
Reviewed-on: https://go-review.googlesource.com/c/go/+/512115
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Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
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Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
A small number of tests in the main tree are currently skipped in LUCI
because our builders there run tests without root. Unfortunately, these
tests begin to run when run under 'unshare -n -r' as implemented in
the current iteration of a no-network check. Add targeted builder-only
skips so that they don't begin to run and fail with a false positive.
Updates #10719.
For #30612.
Change-Id: I6dd320714a279c395882c1b2ebfbb2fce58f913b
Reviewed-on: https://go-review.googlesource.com/c/go/+/513779
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Tests that need to use the internet are expected not to run when -short
test flag is set, and the Go build system automatically catches when a
test forgets that. It does this by unsharing all real network interfaces
and leaving only a loopback interface in a new network namespace.
TestUnshare tests that a process started with CLONE_NEWNET unshare flag
has fewer network interfaces than before. Of course, if /proc/net/dev
starts out with a single loopback interface, the test would fail with
a false positive:
=== RUN TestUnshare
exec_linux_test.go:139: Got 3 lines of output, want <3
--- FAIL: TestUnshare (0.00s)
Give the test what it wants: a skip when the environment doesn't meet
the minimum requirements for the test, and more useful log output if
it fails.
Change-Id: I6b9c29d88ce725e640a7ee86c7e1be9761f21b02
Reviewed-on: https://go-review.googlesource.com/c/go/+/513762
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
