1
0
mirror of https://github.com/golang/go synced 2024-09-29 17:24:34 -06:00
Commit Graph

48742 Commits

Author SHA1 Message Date
Matthew Dempsky
db7c868307 [dev.typeparams] test: add string quoting support to test/run.go
This CL copies go/build's splitQuoted function (used for parsing #cgo
directives within `import "C"` preambles) to parse test recipe
commands. In particular, this now allows writing "build" and "run"
tests that use -gcflags to pass multiple compiler flags.

Change-Id: I0d18a9c13a4ce24bbdfa1da8662c0498c93a6762
Reviewed-on: https://go-review.googlesource.com/c/go/+/327275
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>
2021-06-12 14:36:25 +00:00
Matthew Dempsky
0132b91127 [dev.typeparams] cmd/compile: refactor closure construction
typecheck.tcClosure is complicated with many code flows because all of
its callers setup the closure funcs in slightly different ways. E.g.,
it's non-obvious who's responsible for setting the underlying func's
Sym or adding it to target.Decls, or how to write new code that
constructs a closure without interfering with existing code.

This CL refactors everything to use three common functions in package
ir: NewClosureFunc (which handle creating the Func, Name, and
ClosureExpr and wiring them together), NameClosure (which generates
and assigns its unique Sym), and UseClosure (which handles adding the
Func to target.Decls).

Most IR builders can actually name the closure right away, but the
legacy noder+typecheck path may not yet know the name of the enclosing
function. In particular, for methods declared with aliased receiver
parameters, we need to wait until after typechecking top-level
declarations to know the method's true name. So they're left anonymous
until typecheck.

UseClosure does relatively little work today, but it serves as a
useful spot to check that the code setting up closures got it right.
It may also eventually serve as an optimization point for early
lifting of trivial closures, which may or may not ultimately be
beneficial.

Change-Id: I7da1e93c70d268f575b12d6aaeb2336eb910a6f1
Reviewed-on: https://go-review.googlesource.com/c/go/+/327051
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>
2021-06-12 13:53:19 +00:00
Matthew Dempsky
8f00eb0099 [dev.typeparams] cmd/compile: avoid ir.DeepCopy in noder.constDecl
Instead of using ir.DeepCopy to copy the IR from the previous constant
declaration, just call exprList again and then fix up the position
information. This is equivalent in practice, but has cleaner semantics
for tricky corner cases like constant declarations that contain
function literals.

In particular, this refactoring is necessary for the next CL that
cleans up function literal construction, because it adds extra
consistency checks that weren't satisfied by DeepCopy'd OCLOSUREs.

Change-Id: I0372bde5d6613695ee572cc8bf8fb4ff9aef4cb4
Reviewed-on: https://go-review.googlesource.com/c/go/+/327449
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>
2021-06-12 13:53:06 +00:00
Michael Anthony Knyszek
9d46ee5ac4 reflect: handle stack-to-register translation in callMethod
callMethod previously assumed erroneously that between the "value" and
"method" ABIs (that is, the ABI the caller is following to call this
method value and the actual ABI of the method), it could never happen
that an argument passed on the stack in the former could be passed in
registers in the latter. The cited reason was that the latter always
uses strictly more registers.

However, there are situations where the value ABI could pass a value on
the stack, but later is passed in a register. For instance, if the
receiver pushes a value passed in registers that uses multiple registers
to be passed on the stack, later arguments which were passed on the
stack may now be passed in registers.

This change fixes callMethod to no longer makes this assumption, and
handles the stack-to-register translation explicitly.

Fixes #46696.

Change-Id: I7100a664d97bbe401302cc893b3a98b28cdcdfc0
Reviewed-on: https://go-review.googlesource.com/c/go/+/327089
Trust: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2021-06-12 00:12:55 +00:00
Matthew Dempsky
2954f11ead [dev.typeparams] cmd/compile: scaffolding for export data experiments
This CL adds a simple framework for augmenting the current export data
format by writing out additional data *after* the existing data, with
an extra header before it that current readers ignore.

In particular, this is used by unified IR to be able to experiment and
iterate on export data designs without having to keep the
go/internal/gcimporter and x/tools/go/gcexportdata importers in
sync. Instead, they simply continue reading the existing data written
out by typecheck/iexport.go.

Change-Id: I883211c2892e2c7dec758b85ff6bc31b244440a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/327169
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2021-06-12 00:11:57 +00:00
Constantin Konstantinidis
e552a6d312 cmd/go: remove hint when no module is suggested
Fixes #46528

Change-Id: I2453d321ece878ea7823865758aa4a16b3ed7fe8
Reviewed-on: https://go-review.googlesource.com/c/go/+/325430
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Trust: Heschi Kreinick <heschi@google.com>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
2021-06-11 21:43:54 +00:00
Cherry Mui
c93d5d1a52 [dev.typeparams] all: always enable regabig on AMD64
Always enable regabig on AMD64, which enables the G register and
the X15 zero register. Remove the fallback path.

Also remove the regabig GOEXPERIMENT. On AMD64 it is always
enabled (this CL). Other architectures already have a G register,
except for 386, where there are too few registers and it is
unlikely that we will reserve one. (If we really do, we can just
add a new experiment).

Change-Id: I229cac0060f48fe58c9fdaabd38d6fa16b8a0855
Reviewed-on: https://go-review.googlesource.com/c/go/+/327272
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-06-11 20:52:41 +00:00
Jason A. Donenfeld
16b5d766d8 syscall: do not load native libraries on non-native powershell on arm
The powershell that currently ships on ARM Windows isn't native, so it
won't load native DLLs. So just skip the tests for now, and reenable it
if this ever changes.

Updates #46701.

Change-Id: I2559fdf13cb65d3ecdc4c6f6df7dec1b490b9651
Reviewed-on: https://go-review.googlesource.com/c/go/+/327210
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
2021-06-11 20:31:30 +00:00
Cherry Mui
2fe324858b [dev.typeparams] internal/buildcfg: always enable regabiwrappers on AMD64
Always enable regabiwrappers on AMD64. GOEXPERIMENT=none will not
turn it off.

Change-Id: I0aa208c02157661ac3676b753bcfbfa050b99e41
Reviewed-on: https://go-review.googlesource.com/c/go/+/327271
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-06-11 19:54:25 +00:00
Ian Lance Taylor
77aa209b38 runtime: loop on EINTR in macOS sigNoteSleep
Fixes #46466

Change-Id: I8fb15d0c8ef7ef6e6fc1b9e0e033d213255fe0df
Reviewed-on: https://go-review.googlesource.com/c/go/+/326778
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2021-06-11 19:00:10 +00:00
Cherry Mui
e0e9fb8aff [dev.typeparams] runtime: simplify defer record allocation
Now that deferred functions are always argumentless and defer
records are no longer with arguments, defer record can be fixed
size (just the _defer struct). This allows us to simplify the
allocation of defer records, specifically, remove the defer
classes and the pools of different sized defers.

Change-Id: Icc4b16afc23b38262ca9dd1f7369ad40874cf701
Reviewed-on: https://go-review.googlesource.com/c/go/+/326062
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-06-11 18:33:07 +00:00
Cherry Mui
4468e1cfb9 [dev.typeparams] runtime: allow newproc split stack
newproc was not allowed to split stack because it had a special
stack layout, where the go'd function's arguments were passed on
stack but not included in the signature (therefore the stack map).
Now it no longer has argument, so it does not need to be nosplit.

Change-Id: I6f39730fb1595c4b0438c74118fef418fe1c082b
Reviewed-on: https://go-review.googlesource.com/c/go/+/325919
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-06-11 18:32:42 +00:00
Matthew Dempsky
ef6c5be160 [dev.typeparams] cmd/compile: fix wrapper generation for imported generics
This CL fixes reflectdata.methodWrapper to compile wrapper functions
for method expressions involving imported, instantiated interface
types. CL 322193 fixed a similar issue for generating wrappers for
imported, instantiated concrete types, but missed this case.

This is necessary to fix CL 326169's test case 10. However, that test
case is not included currently, because -G=3 mode crashes on method
expressions involving *any* instantiated interface type. Adding a test
will have to wait until either this issue is fixed in -G=3 mode, or
unified IR is merged.

Updates #46704.

Change-Id: Ib02d3c20e7c69d16288f1286cd1c98e7cbbba114
Reviewed-on: https://go-review.googlesource.com/c/go/+/327055
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
Trust: Dan Scales <danscales@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-06-11 17:18:40 +00:00
Brad Fitzpatrick
e2dc6dd5c9 doc/go1.17: clean up formatting of gofmt section
It was the only h3 in <code>, and it lacked <p> around its content.

It looked like it was part of the prior section:

    https://tip.golang.org/doc/go1.17#gofmt

Change-Id: I7e9ef70e9a03474225833f44420aabd70dab3cd5
Reviewed-on: https://go-review.googlesource.com/c/go/+/326774
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Trust: Brad Fitzpatrick <bradfitz@golang.org>
2021-06-11 16:09:15 +00:00
Bryan C. Mills
2f1128461d cmd/go: match Windows paths in TestScript/mod_invalid_version
Fixes #46691

Change-Id: I3bef9a773be640bed96eb2dc395cb11671a0767a
Reviewed-on: https://go-review.googlesource.com/c/go/+/326869
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-06-11 14:50:38 +00:00
Matthew Dempsky
4a735ce068 [dev.typeparams] cmd/compile: add "check" field to noder.gcimports
The unified IR importer needs access to the *types2.Checker instance
to lazily construct objects and types. Eventually, maybe the
types2.Importer API can be extended to add the Checker as another
parameter (or more likely something like an ImportConfig struct), but
right now we can handle this ourselves as long as we forgo the
types2.(*Config).Check convenience wrapper.

Updates #46449.

Change-Id: I89c41d5d47c224a58841247cd236cd9f701a23a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/327053
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>
2021-06-11 14:48:07 +00:00
Rhys Hiltner
2721da2608 doc/go1.17: fix formatting near httptest
Change-Id: Ic1a0add3a1e137ca5cd0f3e9ce3266191b0b55cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/326777
Trust: Alberto Donizetti <alb.donizetti@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2021-06-11 14:48:06 +00:00
Matthew Dempsky
61888d47c4 [dev.typeparams] cmd/compile: allow embedding Type.Vargen into Sym.Name
Unified IR currently works by hoisting local type definitions to
package scope, which requires giving them a unique name. Its current
solution is to directly embed the ·N suffix in Sym.Name, rather than
set Type.Vargen. This CL extends types/fmt.go to support trimming this
suffix again when appropriate.

Longer term, I want to revisit this hack, but this seemed like the
least invasive solution while also handling generics and local types.

Change-Id: If99fcdcc1e19e37d5887de3b021c256a3fe46b98
Reviewed-on: https://go-review.googlesource.com/c/go/+/327052
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>
2021-06-11 14:47:33 +00:00
Matthew Dempsky
62e32dd386 [dev.typeparams] cmd/compile: extract SetBaseTypeIndex function
The unified IR importer requires a way to set symbol indices for
imported types, so provide an exported API for this.

Change-Id: I2f088628f56d5b9f1097196dc1aa23f0a8b8d496
Reviewed-on: https://go-review.googlesource.com/c/go/+/327050
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>
2021-06-11 14:46:45 +00:00
Matthew Dempsky
18788245ea [dev.typeparams] cmd/compile: add ir.TypeNodeAt
This CL adds a variant of ir.TypeNode that allows specifying position
information. This shouldn't normally be needed/used, but it's
occasionally helpful for writing code that passes toolstash -cmp.

Change-Id: I2be5da0339fd1ec2bee01d6c5310bd2ef58c46b4
Reviewed-on: https://go-review.googlesource.com/c/go/+/327049
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2021-06-11 14:46:12 +00:00
Damien Neil
770f1de8c5 net/http: remove test-only private key from production binaries
The net/http/internal package contains a PEM-encoded private key used in
tests. This key is initialized at init time, which prevents it from
being stripped by the linker in non-test binaries.

Move the certificate and key to a new net/http/internal/testcert
package to ensure it is only included in binaries that reference it.

Fixes #46677.

Change-Id: Ie98bda529169314cc791063e7ce4d99ef99113c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/326771
Trust: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2021-06-10 20:20:58 +00:00
Bryan C. Mills
8d11b1d117 cmd/go: report the imports of CompiledGoFiles in ImportMap
Ideally we should encode the load.PackageInternal data in a way that
doesn't rely on 1:1 correlations of slices, but this is a minimal fix
to unblock Go 1.17.

Fixes #46462

Change-Id: I6e029c69f757aadc54d4be02c01d6b294c217542
Reviewed-on: https://go-review.googlesource.com/c/go/+/326610
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
2021-06-10 19:59:02 +00:00
Filippo Valsorda
dc00dc6c6b crypto/tls: let HTTP/1.1 clients connect to servers with NextProtos "h2"
Fixes #46310

Change-Id: Idd5e30f05c439f736ae6f3904cbb9cc2ba772315
Reviewed-on: https://go-review.googlesource.com/c/go/+/325432
Trust: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
2021-06-10 12:41:37 +00:00
Heschi Kreinick
27f83723e9 api: promote next to go1.17
Change-Id: If631878a2f6ec0317b4fad614f98ab102810ed47
Reviewed-on: https://go-review.googlesource.com/c/go/+/326410
Trust: Heschi Kreinick <heschi@google.com>
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2021-06-09 22:49:08 +00:00
Heschi Kreinick
182157c81a doc/go1.17: remove lingering TODO
As far as I can tell the Core Library section is complete. Remove its
TODO.

Change-Id: Ia84c6656fac045e25fae1a7ce8b488a3a26fd250
Reviewed-on: https://go-review.googlesource.com/c/go/+/326469
Trust: Heschi Kreinick <heschi@google.com>
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
2021-06-09 18:34:25 +00:00
Damien Neil
a5bc060b42 doc/go1.17: document strconv changes for Go 1.17
For #44513.
Fixes #46021.

Change-Id: I40a4645fedfae24f67e249743c6a143e71b9f507
Reviewed-on: https://go-review.googlesource.com/c/go/+/326150
Trust: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2021-06-09 18:32:06 +00:00
Damien Neil
1402b27d46 strconv: document parsing of leading +/-
Explicitly document the handling of a sign prefix, and the interaction
between the sign and base prefixes.

Fixes #46641.

Change-Id: I3cd6773e3f074fe671a944a05a79d2408137fcd4
Reviewed-on: https://go-review.googlesource.com/c/go/+/325875
Trust: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
2021-06-09 18:16:27 +00:00
Heschi Kreinick
df35ade067 doc/go1.17: document //go:build lines
In 1.17, //go:build lines are fully supported. This entails changes to
the go command, vet, and gofmt. Document all of them.

I'm not Russ, but this is a significant change, it slipped under the
radar, and we're trying to get the release out. So here's what I got.

I wasn't sure where to put the go command change. On the one hand,
it's pretty significant. On the other, it certainly affects fewer
people than lazy loading. So it probably shouldn't be first, but I also
didn't want to bury it the middle of all the other module changes. Open
to suggestions.

Change-Id: Ia1a96bcfb1977973c5b0b0a6b18a9242a745af12
Reviewed-on: https://go-review.googlesource.com/c/go/+/326209
Trust: Heschi Kreinick <heschi@google.com>
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2021-06-09 17:11:44 +00:00
Filippo Valsorda
e4e7807d24 net/http: add AllowQuerySemicolons
Fixes #45973

Change-Id: I6cbe05f5d1d3c324900c74314b0ea0e12524d7f2
Reviewed-on: https://go-review.googlesource.com/c/go/+/326309
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
Trust: Katie Hockman <katie@golang.org>
Trust: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
2021-06-09 16:59:02 +00:00
Cherry Mui
ec3026d032 doc/go1.17: remove TODO for ports section
I'm not aware of anything more to mention for ports.

Change-Id: I686df8a230a55ad7f4c5eae43ca27f85fad9dd84
Reviewed-on: https://go-review.googlesource.com/c/go/+/326409
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Jeremy Faller <jeremy@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2021-06-09 16:35:20 +00:00
Katie Hockman
e6dda19888 net/url: reject query values with semicolons
Semicolons are no longer valid separators, so
net/url.ParseQuery will now return an error
if any part of the query contains a semicolon.

net/http.(*Request).ParseMultipartForm has been
changed to fall through and continue parsing
even if the call to (*Request).ParseForm fails.

This change also includes a few minor refactors
to existing tests.

Fixes #25192

Change-Id: Iba3f108950fb99b9288e402c41fe71ca3a2ababd
Reviewed-on: https://go-review.googlesource.com/c/go/+/325697
Trust: Katie Hockman <katie@golang.org>
Run-TryBot: Katie Hockman <katie@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2021-06-09 15:44:42 +00:00
Russ Cox
139e935d3c math/big: comment division
The comments in the code refer to Knuth and to Burnikel and Ziegler,
but Knuth's presentation is inscrutable, and our recursive division
code does not bear much resemblance to Burnikel and Ziegler's paper
(which is fine, ours is nicer).

Add a standalone explanation of division instead of referring to
difficult or not-directly-used references.

Change-Id: Ic1b35dc167fb29a69ee00e0b4a768ac9cc9e1324
Reviewed-on: https://go-review.googlesource.com/c/go/+/321078
Trust: Russ Cox <rsc@golang.org>
Trust: Katie Hockman <katie@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2021-06-09 15:09:13 +00:00
Than McIntosh
aa5540cd82 cmd/compile: make map.zero symbol content-addressable
The compiler machinery that generates "map.zero" symbols marks them as
RODATA and DUPOK, which is problematic when a given application has
multiple map zero symbols (from different packages) with varying
sizes: the dupok path in the loader assumes that if two symbols have
the same name, it is safe to pick any of the versions. In the case of
map.zero, the link needs to select the largest symbol, not an
arbitrary sym.

To fix this problem, mark map.zero symbols as content-addressable,
since the loader's content addressability processing path already
supports selection of the larger symbol in cases where there are dups.

Fixes #46653.

Change-Id: Iabd2feef01d448670ba795c7eaddc48c191ea276
Reviewed-on: https://go-review.googlesource.com/c/go/+/326211
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2021-06-09 02:18:34 +00:00
Than McIntosh
07ca28d529 cmd/link: fix bug in -strictdups checking of BSS symbols
The linker's -strictdups debugging option was not properly checking
for cases where you have two dupok BSS symbols with different length
(the check examined data length and content, but not symbol size).

Updates #46653.

Change-Id: I3844f25ef76dd6e4a84ffd5caed5d19a1b1a57c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/326210
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2021-06-09 02:18:24 +00:00
Cherry Mui
b20747334a [dev.typeparams] cmd/compile, runtime: simplify opendefer metadata
Now that deferred functions are always argumentless, we don't
need the metadata for the frame size, number of arguments, and
the information about each argument.

Change-Id: I99e75248a22bda6efbdf2012a2f35beca4c18fd7
Reviewed-on: https://go-review.googlesource.com/c/go/+/326061
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
2021-06-09 01:31:08 +00:00
Cherry Mui
c0a86c10f1 [dev.typeparams] cmd/compile: simplify openDeferSave
Now it is only used to save the deferred the function (closure),
which must be a function type. Simplify the code.

Change-Id: Id4b8f2760fbf39a95883df2327f97378e7edab88
Reviewed-on: https://go-review.googlesource.com/c/go/+/326060
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
2021-06-09 01:30:09 +00:00
Ian Lance Taylor
bcecae2af6 doc/go1.17: mention new possibility of type conversion panicking
For #44513
For #46020

Change-Id: I07c7a4268465c536d1866cc6bb1fad76b2b88b15
Reviewed-on: https://go-review.googlesource.com/c/go/+/326149
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2021-06-08 22:35:56 +00:00
Tim King
63dcab2e91 doc/go1.17: mention new vet checks sigchanyzer and stdmethods.
These vet checks were added in CL 299532 and CL 321389.

Also adds a TODO for buildtags.

Change-Id: I516dc77729f6d2dc147318260fe452831b115dfa
Reviewed-on: https://go-review.googlesource.com/c/go/+/322769
Trust: Tim King <taking@google.com>
Run-TryBot: Tim King <taking@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2021-06-08 22:32:06 +00:00
Cherry Mui
74b0b2772a [dev.typeparams] cmd/compile, runtime: remove _defer.siz field
As deferred function now always has zero arguments, _defer.siz is
always 0 and can be removed.

Change-Id: Ibb89f65b2f9d2ba4aeabe50438cc3d4b6a88320b
Reviewed-on: https://go-review.googlesource.com/c/go/+/325921
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-06-08 22:09:16 +00:00
Cherry Mui
b80a4c56f0 [dev.typeparams] runtime: allow deferproc split stack
deferproc was not allowed to split stack because it had a special
stack layout, where the go'd function's arguments were passed on
stack but not included in the signature (therefore the stack map).
Now it no longer has argument, so it does not need to be nosplit.

Change-Id: I6d4b5302bd6fea6642bb4202984d86e3ebbc9054
Reviewed-on: https://go-review.googlesource.com/c/go/+/325920
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-06-08 21:45:35 +00:00
Cherry Mui
83da32749c [dev.typeparams] runtime: make deferproc take a func() argument
Previously it takes a *funcval, as it can be any function types.
Now it must be func(). Make it so.

Change-Id: I04273047b024386f55dbbd5fbda4767cbee7ac93
Reviewed-on: https://go-review.googlesource.com/c/go/+/325918
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-06-08 20:55:14 +00:00
Cherry Mui
8e5304f729 [dev.typeparams] cmd/compile, runtime: remove the siz argument of newproc/deferproc
newproc/deferproc takes a siz argument for the go'd/deferred
function's argument size. Now it is always zero. Remove the
argument.

Change-Id: If1bb8d427e34015ccec0ba10dbccaae96757fa8c
Reviewed-on: https://go-review.googlesource.com/c/go/+/325917
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-06-08 20:54:04 +00:00
Cherry Mui
6551763a60 doc/go1.17: mention block profile bias fix
Re-apply the doc part of CL 324471, originally written by Felix Geisendörfer.

Change-Id: I831bead9a385bc5a5eed3058649a25ef17373bc6
Reviewed-on: https://go-review.googlesource.com/c/go/+/326171
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2021-06-08 20:45:46 +00:00
Cherry Mui
cb80937bf6 Revert "doc/go1.17: mention block profile bias fix"
This reverts CL 324471 (commit 689f4c7415).

Reason for revert: break ~all builders. And it is not a doc-only change.

Change-Id: Iadbdda34d2ca476a9f5e6c2d3a28592ed7ccb067
Reviewed-on: https://go-review.googlesource.com/c/go/+/326170
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2021-06-08 20:39:45 +00:00
Roland Shoemaker
d3e3d03666 net: reject leading zeros in IP address parsers
In both net.ParseIP and net.ParseCIDR reject leading zeros in the
dot-decimal notation of IPv4 addresses.

Fixes #30999
Fixes #43389

Change-Id: I2b6a31fe84db89ac828cf5ed03eaa586ee96ab68
Reviewed-on: https://go-review.googlesource.com/c/go/+/325829
Trust: Roland Shoemaker <roland@golang.org>
Trust: Katie Hockman <katie@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
2021-06-08 20:23:22 +00:00
Cherry Mui
da4a640141 doc/go1.17: revise OpenBSD release notes
Updates #44513.

Change-Id: I64077859fa3061fee8327599875ad3870d603a81
Reviewed-on: https://go-review.googlesource.com/c/go/+/322856
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2021-06-08 20:19:17 +00:00
Felix Geisendörfer
689f4c7415 doc/go1.17: mention block profile bias fix
Change-Id: I76fd872b2d74704396f0683ffa9cec40b7027247
Reviewed-on: https://go-review.googlesource.com/c/go/+/324471
Reviewed-by: Heschi Kreinick <heschi@google.com>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
2021-06-08 20:19:02 +00:00
Bryan C. Mills
9afe071c60 doc/go1.17: remove TODO for Tools section
Change-Id: I6cd7376bd051222a830cbf18cf7e887072b61f3b
Reviewed-on: https://go-review.googlesource.com/c/go/+/325911
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2021-06-08 19:49:05 +00:00
Cherry Mui
00d01b5786 [dev.typeparams] runtime: remove tracebackdefers
tracebackdefers is used for scanning/copying deferred functions'
arguments. Now that deferred functions are always argumentless,
it does nothing. Remove.

Change-Id: I55bedabe5584ea41a12cdb03d55ec9692a5aacd9
Reviewed-on: https://go-review.googlesource.com/c/go/+/325916
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-06-08 19:46:25 +00:00
Cherry Mui
12b37b713f [dev.typeparams] runtime: remove variadic defer/go calls
Now that defer/go wrapping is used, deferred/go'd functions are
always argumentless. Remove the code handling arguments.

This CL is mostly removing the fallback code path. There are more
cleanups to be done, in later CLs.

Change-Id: I87bfd3fb2d759fbeb6487b8125c0f6992863d6e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/325915
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2021-06-08 19:46:10 +00:00