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12328 Commits

Author SHA1 Message Date
Keith Randall
b8669ef1ce cmd/cgo: stop expanding typedefs once we reach __builtin types
Expanding __builtin types (__builtin_va_list, particularly) leads
to problems because they are expanded by the compiler itself - the
expansions are not generated by anything in a .h file. The types
a __builtin type expand to are thus very confusing to cgo.

See CL 126275.

Change-Id: I66eb6a4f27f652f1b934ba702f580f6daa62a566
Reviewed-on: https://go-review.googlesource.com/127156
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-08-01 14:29:58 +00:00
Russ Cox
b7d3f4c0b2 cmd/doc: adapt directory search for modules
Previously, cmd/doc treated GOROOT/src and GOPATH/src
as the roots of the directory trees holding packages, assuming
that the import path would be the path elements after the src directory.

With modules, each module serves as its own root of a file tree,
and the import path prefix starts with the module path before
adding the path elements after the module root.

There are ways we could make this more efficient,
but for now this is a fairly small adjustment to get 'go doc'
working OK for modules for Go 1.11.

Fixes #26635.

Change-Id: Ifdee4194601312846c7b1fc67f2fe7a4a44269cc
Reviewed-on: https://go-review.googlesource.com/126799
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
2018-08-01 00:35:28 +00:00
Russ Cox
b8f42d74e8 cmd/go: move module cache from $GOPATH/src/mod to $GOPATH/pkg/mod
Using $GOPATH/src/mod confuses too many tools.
$GOPATH/pkg/mod seems better for now.
It's also next to dep's cache, $GOPATH/pkg/dep.
If we do eliminate GOPATH/pkg for holding .a files (#4719)
then we could still keep it around for pkg/mod.
(Or we could move the module cache again then.)

Fixes #26401.
Fixes #26635.

Change-Id: I18f7da216ed9f490eded3c00d837fb086ae5b6a4
Reviewed-on: https://go-review.googlesource.com/126755
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Rob Pike <r@golang.org>
2018-08-01 00:35:26 +00:00
Russ Cox
27e546be86 cmd/go: add list -find to find packages but not resolve imports
This is needed by golang.org/x/tools/go/packages
and also gives a way to do a quicker scan for
packages with a given final path element:

	go list -find .../template

Change-Id: I092f4ac5ba7af7d727eb8204379fa436667061b9
Reviewed-on: https://go-review.googlesource.com/126716
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-08-01 00:35:25 +00:00
Russ Cox
cdac6c22c3 cmd/go: allow list of absolute directory path
Relative directory paths have always worked.
This CL makes absolute directory paths be handled the same way.
(It was an oversight that they were excluded.)

It also fixes the case of naming the directory holding source code
for a package in a module dependency.

Fixes #14177.
Fixes #26550.

Change-Id: I29a0ca2795d35eca773121ee91a97628b56947ce
Reviewed-on: https://go-review.googlesource.com/126715
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-08-01 00:35:23 +00:00
Russ Cox
30a84b389d cmd/go: replace -getmode with -mod, $GOPROXY
The old -getmode flag had two settings:
-getmode=local meant don't download from the network.
-getmode=vendor meant only use the vendor directory.

The new -mod flag has two settings:
-mod=readonly means refuse to automatically update go.mod (mainly for CI testing).
-mod=vendor means only use the vendor directory.

The old GOPROXY variable had two settings:
a proxy URL or else the empty string (direct connect).

The new GOPROXY variable has three settings:
a proxy URL, the string "off" (no network use allowed),
or else the empty string or the explicit string "direct" (direct connection).
We anticipate allow a comma-separated sequence in a future release,
so commas are disallowed entirely right now.

Fixes #24666.
Fixes #26586.
Fixes #26370.
Fixes #26361.

Change-Id: If2601a16b09f04800f666938c071fc053b4c3f9c
Reviewed-on: https://go-review.googlesource.com/126696
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-08-01 00:35:22 +00:00
Russ Cox
c1a4fc3b36 cmd/go: add $GOFLAGS environment variable
People sometimes want to turn on a particular go command flag by default.
In Go 1.11 we have at least two different cases where users may need this.

1. Linking can be noticeably slower on underpowered systems
due to DWARF, and users may want to set -ldflags=-w by default.

2. For modules, some users or CI systems will want vendoring always,
so they want -getmode=vendor (soon to be -mod=vendor) by default.

This CL generalizes the problem to “set default flags for the go command.”

$GOFLAGS can be a space-separated list of flag settings, but each
space-separated entry in the list must be a standalone flag.
That is, you must do 'GOFLAGS=-ldflags=-w' not 'GOFLAGS=-ldflags -w'.
The latter would mean to pass -w to go commands that understand it
(if any do; if not, it's an error to mention it).

For #26074.
For #26318.
Fixes #26585.

Change-Id: I428f79c1fbfb9e41e54d199c68746405aed2319c
Reviewed-on: https://go-review.googlesource.com/126656
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
2018-08-01 00:35:21 +00:00
Russ Cox
53859e575b cmd/go: change list -compiled to populate new CompiledGoFiles list
CL 108156 added -cgo during the Go 1.11 cycle.
To avoid adding a new field to Package, it redefined the
meaning of the CgoFiles list to be the cgo output instead
of the cgo input.

This was awkward in the go command itself, since the meaning
of the list changed midway through the build.

But, worse, it is awkward to users of go list.
When gathering information about a tree of packages,
we may want the names of both the cgo inputs and the cgo outputs
(golang.org/x/tools/go/packages does, it turns out),
or when combined with -deps (CL 107776),
we may only care about one list or the other depending
on whether the package was requested explicitly or is
being returned as a dependency.

Also, it's not general enough. SWIGFiles turn into cgo files
and then end up in the list too. And maybe there will be others
in the future. What clients really want is the list of files that
are presented to the go compiler, so that they can parse
and type-check them as if they were the compiler instead.

Eliminate all this awkwardness by dropping -cgo and adding
a new -compiled that populates a new CompiledGoFiles list.

Change-Id: I5f152da17cfb2692eedde61721d01ec13067c57d
Reviewed-on: https://go-review.googlesource.com/126695
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-08-01 00:35:19 +00:00
Russ Cox
6121987a10 cmd/go: split go mod into multiple subcommands
The current "go mod" command does too many things.
The design is unclear.

It looks like "everything you might want to do with modules"
which causes people to think all module operations go through
"go mod", which is the opposite of the seamless integration we're
going for. In particular too many people think "go mod -require"
and "go get" are the same.

It does make sense to put the module-specific functionality
under "go mod", but not as flags. Instead, split "go mod" into
multiple subcommands:

	go mod edit   # old go mod -require ...
	go mod fix    # old go mod -fix
	go mod graph  # old go mod -graph
	go mod init   # old go mod -init
	go mod tidy   # old go mod -sync
	go mod vendor # old go mod -vendor
	go mod verify # old go mod -verify

Splitting out the individual commands makes both the docs
and the implementations dramatically easier to read.
It simplifies the command lines
(go mod -init -module m is now 'go mod init m')
and allows command-specific flags.

We've avoided subcommands in the go command to date, and we
should continue to avoid adding them unless it really makes
the experience significantly better. In this case, it does.

Creating subcommands required some changes in the core
command-parsing and help logic to generalize from one
level to multiple levels.

As part of having "go mod init" be a separate command,
this CL changes the failure behavior during module initialization
to be delayed until modules are actually needed.
Initialization can still happen early, but the base.Fatalf
is delayed until something needs to use modules.
This fixes a bunch of commands like 'go env' that were
unhelpfully failing with GO111MODULE=on when not in a
module directory.

Fixes #26432.
Fixes #26581.
Fixes #26596.
Fixes #26639.

Change-Id: I868db0babe8c288e8af684b29d4a5ae4825d6407
Reviewed-on: https://go-review.googlesource.com/126655
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-08-01 00:35:17 +00:00
Russ Cox
16962faf99 cmd/go: add 'go version' statement in go.mod
We aren't planning to use this or advertise it much yet,
but having support for it now will make it easier to start
using in the future - older go commands will understand
what 'go 1.20' means and that they don't have go 1.20.

Fixes #23969.

Change-Id: I729130b2690d3c0b794b49201526b53de5093c45
Reviewed-on: https://go-review.googlesource.com/125940
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-08-01 00:35:16 +00:00
Kir Kolyshkin
6bea321ba2 cmd/cgo: add column number to line directives
Due to a new specification of //line: directives, missing
column info is now treated as column 0, aka "unknown column"
(see https://github.com/golang/go/issues/24183 for details).

As cgo does not add column number to generated //line: directive,
resulting files parsed do not have column info.

Fix by adding column of 1 to generated line directives.

Fixes #26692

Change-Id: Ie9263c0cf666b92d19c34240e745e8f32ffe7174
Reviewed-on: https://go-review.googlesource.com/126675
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-31 20:20:47 +00:00
Keith Randall
344d0e0bf7 cmd/cgo: make sure we FinishType everything
Ensure that we call FinishType on all the types added to the ptrs map.
We only add a key to ptrKeys once. Once we FinishType for that key,
we'll never look at that key again. But we can add a new type under that
key later, and we'll never finish it.

Make sure we add the key to the ptrKeys list every time we make the list
of types for that key non-empty.

This makes sure we FinishType each pointer type exactly once.

Fixes #26517

Change-Id: Iad86150d516fcfac167591daf5a26c38bec7d143
Reviewed-on: https://go-review.googlesource.com/126275
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-31 19:29:20 +00:00
Bryan C. Mills
f152f83a6e cmd/go/internal/modfetch/codehost: quote arguments to commands printed from -x
Some of the arguments — particularly format strings passed to git commands — may
contain spaces, and it's useful to be able to paste commands from 'go get -x
foo' directly into a shell to reproduce their output.

Change-Id: I4f0c0b4e05db8b5232458e9a271f2ccbb665e85a
Reviewed-on: https://go-review.googlesource.com/126955
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-07-31 19:14:46 +00:00
Yury Smolsky
0b7d87e6f9 cmd/compile: remove dead code
This struct, global var and method are not used anywhere.

Change-Id: I83d9e93041a46904064d0fa88ab655a50149c747
Reviewed-on: https://go-review.googlesource.com/126397
Run-TryBot: Yury Smolsky <yury@smolsky.by>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-31 15:42:33 +00:00
Bryan C. Mills
b294fe9b0a cmd/go: prohibit modules from importing vendored golang_org packages
Expand mod_internal tests to cover vendoring, replacements, and failure
messages.

Packages beginning with "golang_org/" resolve to $GOROOT/src/vendor, and should
therefore not be visible within module code.

Fixes #23970.

Change-Id: I706e9c4a1d1e025883e84b897972678d0fa3f2bd
Reviewed-on: https://go-review.googlesource.com/125836
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2018-07-31 02:04:53 +00:00
Bryan C. Mills
68170aa677 cmd/go: forbid use of one module with two different paths
If a single module is imported via two different paths (e.g., as itself and as a
replacement for something else), some users may be surprised if the two paths
do not share the same package-level state. Others may be surprised if the two
paths do share state.

Punt on the question for now by rejecting that condition explicitly.

Fixes #26607.

Change-Id: I15c3889f61f8dd4ba5e5c48ca33ad63aeecac04e
Reviewed-on: https://go-review.googlesource.com/126156
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2018-07-31 02:02:51 +00:00
Bryan C. Mills
682faae2e3 cmd/go/internal/modload: inline doImport into doPkg
doImport is itself a thin wrapper around Import, and doPkg is its only call
site. I'm having trouble following what doPkg is doing due to the indirection,
so I'm removing it.

Change-Id: I6167be68e869a36010a56a5869df50b1145ac813
Reviewed-on: https://go-review.googlesource.com/125837
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2018-07-31 02:00:47 +00:00
Bryan C. Mills
db2f680fdf cmd/go: allow internal imports based on module paths
Updates #23970.

Change-Id: I2e69ad15b9d1097bfeef9947f03cfa6834a6a049
Reviewed-on: https://go-review.googlesource.com/125676
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2018-07-31 01:58:53 +00:00
Bryan C. Mills
38dc795074 cmd/go: allow unversioned paths to -dropreplace flag
We can add unversioned paths via -replace;
-dropreplace must be able to drop them.

Fixes #26417.

Change-Id: Ic05e9ae2ad80c008e11b195695cbb9d0fc8dbc0a
Reviewed-on: https://go-review.googlesource.com/126155
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2018-07-31 01:57:22 +00:00
Michael Matloob
52cc9e3762 cmd/go: add test code packages in list -test
Previously go list -test <pkg> would return pkg and, if it exists,
pkg.test, the test main package. This change will also list the
two test code packages (if they exist) that contain testing functions,
<pkg> [<pkg>.test] and <pkg>_test [<pkg>.test].

These packages which contain testing code are usually the packages
go list users desire to know about, so they should be surfaced
in go list -test.

See the discussion at
golang.org/cl/123635#message-5befbc66663063fb7247645a02ab1327a681e362
for more context.

Change-Id: I7170b539d02b548c050ac54048735ed785f47389
Reviewed-on: https://go-review.googlesource.com/126475
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2018-07-30 16:40:04 +00:00
Ben Shi
e351a16005 cmd/internal/obj/arm64: reject incorrect form of LDP/STP
"LDP (R0), (F0, F1)" and "STP (F1, F2), (R0)" are
silently accepted by the arm64 assembler without
any error message. And this CL fixes that bug.

fixes #26556.

Change-Id: Ib6fae81956deb39a4ffd95e9409acc8dad3ab2d2
Reviewed-on: https://go-review.googlesource.com/125637
Run-TryBot: Ben Shi <powerman1st@163.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-07-30 15:31:06 +00:00
David du Colombier
154394f8d3 cmd/go: fix TestScript/mod_gobuild_import on Plan 9
CL 125296 added TestScript/mod_gobuild_import. This
test is failing on Plan 9, because go/build invokes
the go tool which cannot be found in the path.

The "PATH" environment variable has been updated to
contain the path to the go tool on Unix and Windows,
but on Plan 9, the analogous environment variable is
called "path".

This change fixes the script engine by setting
the "path" environment variable on Plan 9.

Fixes #26669.

Change-Id: If1be50e14baceccee591f4f76b7e698f5e12a2d4
Reviewed-on: https://go-review.googlesource.com/126608
Run-TryBot: David du Colombier <0intro@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-29 15:42:29 +00:00
Constantin Konstantinidis
5ad0a524d2 cmd/go: uses SID of group Guests to test ACL
The test TestACL failed when ran on a Windows set
up in another language as the "Guest" account
name is translated. The SID of the group of Guests
always exist and is used instead.

Fixes #26658

Change-Id: Ia885d08a9e50563787e389c2d2dc2547881a2943
Reviewed-on: https://go-review.googlesource.com/126598
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-07-28 09:06:26 +00:00
Russ Cox
0090c13c91 cmd/go: ignore unknown directives in dependency go.mod files
This will help with forward compatibility when we add additional
directives that only matter for the main module (or that can be
safely ignored otherwise).

Change-Id: Ida1e186fb2669b128aeb5a9a1187e2535b72b763
Reviewed-on: https://go-review.googlesource.com/125936
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-28 01:15:16 +00:00
Russ Cox
9cde8048ad cmd/go: document in 'go help mod' that people should use 'go get'
We're starting to see tutorials that assume
'go mod' is the only module-related command.

Fixes #26597.

Change-Id: I44701f29f89fc67086f96307afbdb4659bb63873
Reviewed-on: https://go-review.googlesource.com/125935
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-28 01:15:10 +00:00
Russ Cox
a74cc47244 cmd/go: add 'go help goproxy'
Fixes #26553.

Change-Id: I522a0fa96ae161b67d89f38dafde528adcbae243
Reviewed-on: https://go-review.googlesource.com/125658
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-28 01:15:05 +00:00
Russ Cox
f37ca81c84 cmd/go: fix spurious edges in mod -graph output
The mod -graph output was showing every dependency
as an edge from the main module, instead of showing only
the things that are listed in go.mod.

Fixes #26489.

Change-Id: I248fedb1fc9225e2a7a9ddc2f4a84520b3a96138
Reviewed-on: https://go-review.googlesource.com/125657
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-28 01:15:00 +00:00
Russ Cox
0cb6b55f43 cmd/go: add go list -m -f {{.GoMod}} to show path to go.mod file
"go env GOMOD" gives this for the main module already
but it's useful to be able to query other modules.
Using {{.Dir}} does not work if the go.mod was auto-synthesized.

Change-Id: If4844571e9e429b541de0d40c36ff4c5743b2031
Reviewed-on: https://go-review.googlesource.com/125656
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-28 01:14:56 +00:00
Russ Cox
011b6ff8d7 cmd/go: document go env GOMOD
Fixes #26500.

Change-Id: I0a00009ce10f7aab3e6e79f7218307c3008422d1
Reviewed-on: https://go-review.googlesource.com/125655
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-28 01:14:50 +00:00
Russ Cox
8fbbf63cc6 cmd/cgo: document that #including source files in subdirectories is a bad idea
Suggested in discussion on #26366.

Change-Id: Id9ad2e429a915f88b4c4b30fc415c722eebe0ea4
Reviewed-on: https://go-review.googlesource.com/125297
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-28 01:14:45 +00:00
Russ Cox
f85125345c go/build: invoke go command to find modules during Import, Context.Import
The introduction of modules has broken (intentionally) the rule
that the source code for a package x/y/z is in GOPATH/src/x/y/z
(or GOROOT/src/x/y/z). This breaks the code in go/build.Import,
which uses that rule to find the directory for a package.

In the long term, the fix is to move programs that load packages
off of go/build and onto golang.org/x/tools/go/packages, which
we hope will eventually become go/packages. That code invokes
the go command to learn what it needs to know about where
packages are.

In the short term, though, there are lots of programs that use go/build
and will not be able to find code in module dependencies.
To help those programs, go/build now runs the go command to
ask where a package's source code can be found, if it sees that
modules are in use. (If modules are not in use, it falls back to the
usual lookup code and does not invoke the go command, so that
existing uses are unaffected and not slowed down.)

Helps #24661.
Fixes #26504.

Change-Id: I0dac68854cf5011005c3b2272810245d81b7cc5a
Reviewed-on: https://go-review.googlesource.com/125296
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-28 01:14:39 +00:00
Constantin Konstantinidis
9dab384778 cmd/link: added test of availability of gcc
The test RuntimeTypeAttr always failed when gcc
was unavailable. The test is duplicated for internal
and external linking. The usual verification
of host linker is added at the beginning of the
external link test.

Fixes #26621

Change-Id: I076d661f854c8a6de8fa5e7b069942a471445047
Reviewed-on: https://go-review.googlesource.com/126075
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2018-07-27 18:35:13 +00:00
Ian Lance Taylor
ead59f4bf3 cmd/cgo: don't resolve typedefs in -godefs mode
In -godefs mode any typedefs that appear in struct fields and the like
will presumably be defined in the input file. If we resolve to the
base type, those cross-references will not work. So for -godefs mode,
keep the Go 1.10 behavior and don't resolve the typedefs in a loop.

Fixes #26644

Change-Id: I48cf72d9eb5016353c43074e6aff6495af326f35
Reviewed-on: https://go-review.googlesource.com/125995
Reviewed-by: Keith Randall <khr@golang.org>
2018-07-27 16:46:42 +00:00
Daniel Martí
b39fb9ec85 cmd/go/internal/par: fix TestWorkParallel retries
When the test retried multiple times, it reused the same Work variable,
causing in the builders being flaky due to panics. I was able to
immediately reproduce the failure with stress and -race:

	$ go test -race -c && stress -p 32 ./par.test -test.run=TestWorkParallel$

	/tmp/go-stress909062277
	--- FAIL: TestWorkParallel (0.07s)
	panic: par.Work.Do: already called Do [recovered]
		panic: par.Work.Do: already called Do

Instead, use a new Work variable at each retry. Now, the line above
seems to never fail. Of course, much higher 'stress -p' values will
still result in "does not seem to be parallel" test failures since the
machine lacks resources. But those are test failures, not panics.

Fixes #26642.

Change-Id: I5e962eca7602cf413d911ff5669f56d4f52da5a7
Reviewed-on: https://go-review.googlesource.com/126355
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-27 16:29:52 +00:00
Yury Smolsky
6732633bc6 cmd/go: remove unused global var isGoRelease
This variable is not used anymore. It was used in the
TestPackageNotStaleWithTrailingSlash test.

Change-Id: I5e52d4d1d91592dd21e2d9cff96974a49d07f5f8
Reviewed-on: https://go-review.googlesource.com/126376
Run-TryBot: Yury Smolsky <yury@smolsky.by>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-27 16:23:37 +00:00
Ian Lance Taylor
7b46867d6e cmd/go: for missing binary-only package, say where it should be
Before this CL the user effectively has to guess at the expected
location of a binary-only package. While the location is normally
obvious ($GOPATH/pkg/GOOS_GOARCH/PATH/PKG.a) it is much less so when
building with options that implicitly add an -installsufix option.

Fixes #26590

Change-Id: I753ef54d6dcf733bb456dba65a4a92e4db57a1b0
Reviewed-on: https://go-review.googlesource.com/125818
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-25 23:32:37 +00:00
Keith Randall
5fc70b6fac cmd/compile: set stricter inlining threshold in large functions
If we're compiling a large function, be more picky about how big
the function we're inlining is.  If the function is >5000 nodes,
we lower the inlining threshold from a cost of 80 to 20.

Turns out reflect.Value's cost is exactly 80.  That's the function
at issue in #26546.

20 was chosen as a proxy for "inlined body is smaller than the call would be".
Simple functions still get inlined, like this one at cost 7:

func ifaceIndir(t *rtype) bool {
	return t.kind&kindDirectIface == 0
}

5000 nodes was chosen as the big function size.  Here are all the
5000+ node (~~1000+ lines) functions in the stdlib:

5187 cmd/internal/obj/arm (*ctxt5).asmout
6879 cmd/internal/obj/s390x (*ctxtz).asmout
6567 cmd/internal/obj/ppc64 (*ctxt9).asmout
9643 cmd/internal/obj/arm64 (*ctxt7).asmout
5042 cmd/internal/obj/x86 (*AsmBuf).doasm
8768 cmd/compile/internal/ssa rewriteBlockAMD64
8878 cmd/compile/internal/ssa rewriteBlockARM
8344 cmd/compile/internal/ssa rewriteValueARM64_OpARM64OR_20
7916 cmd/compile/internal/ssa rewriteValueARM64_OpARM64OR_30
5427 cmd/compile/internal/ssa rewriteBlockARM64
5126 cmd/compile/internal/ssa rewriteValuePPC64_OpPPC64OR_50
6152 cmd/compile/internal/ssa rewriteValuePPC64_OpPPC64OR_60
6412 cmd/compile/internal/ssa rewriteValuePPC64_OpPPC64OR_70
6486 cmd/compile/internal/ssa rewriteValuePPC64_OpPPC64OR_80
6534 cmd/compile/internal/ssa rewriteValuePPC64_OpPPC64OR_90
6534 cmd/compile/internal/ssa rewriteValuePPC64_OpPPC64OR_100
6534 cmd/compile/internal/ssa rewriteValuePPC64_OpPPC64OR_110
6675 cmd/compile/internal/gc typecheck1
5433 cmd/compile/internal/gc walkexpr
14070 cmd/vendor/golang.org/x/arch/arm64/arm64asm decodeArg

There are a lot more smaller (~1000 node) functions in the stdlib.
The function in #26546 has 12477 nodes.

At some point it might be nice to have a better heuristic for "inlined
body is smaller than the call", a non-cliff way to scale down the cost
as the function gets bigger, doing cheaper inlined calls first, etc.
All that can wait for another release. I'd like to do this CL for
1.11.

Fixes #26546
Update #17566

Change-Id: Idda13020e46ec2b28d79a17217f44b189f8139ac
Reviewed-on: https://go-review.googlesource.com/125516
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2018-07-24 16:11:08 +00:00
Baokun Lee
90066bf06a cmd/go/internal/modfetch: run git log with "-c log.showsignature=false"
The old version git not support "--no-show-signature", git add this from
v2.10.0.

Fixes golang/go#26501.

Change-Id: Ia6b54488651e8687b08a4d40e092822bf960c4fe
Reviewed-on: https://go-review.googlesource.com/125315
Run-TryBot: Baokun Lee <nototon@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-24 15:51:01 +00:00
Yann Hodique
4f9ae7739b cmd/go: fix Go structs in -json documentation
"string" should really be "struct" in the structures describing the module.

Change-Id: I4e9cb12434bd33aa243622380c78e5e297d01d0b
Reviewed-on: https://go-review.googlesource.com/125638
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-07-24 14:29:38 +00:00
Ian Lance Taylor
240ae7e304 cmd/vet: if a function modifies its args, it's not a print wrapper
Fixes #26486
Updates #26555

Change-Id: I402137b796e574e9b085ab54290d1b4ef73d3fcc
Reviewed-on: https://go-review.googlesource.com/125039
Reviewed-by: Russ Cox <rsc@golang.org>
2018-07-23 22:45:16 +00:00
marwan-at-work
62f401bf18 cmd/go/internal/modfetch: do not panic when zip is incorrect
Fixes #26536

Change-Id: I75d284bd39af0a06e31d18c7f7745c5a8ecbe6ac
GitHub-Last-Rev: 88040a9edb
GitHub-Pull-Request: golang/go#26537
Reviewed-on: https://go-review.googlesource.com/125436
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-07-23 16:05:04 +00:00
LE Manh Cuong
834d2244a0 cm/go/internal/test: make vet run when using go test -c
Fixes #26451

Change-Id: Icd8d6d55dc42adb5c8953787eec7eb29ba46b2aa
Reviewed-on: https://go-review.googlesource.com/125215
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-20 19:57:26 +00:00
Than McIntosh
f4c787b6cf cmd/link: skip a couple of DWARF tests in short mode
Rejigger the DWARF tests to ensure that they run in a reasonable
amount of time in short mode, particularly the "abstract origin
sanity" testpoints.

Updates #26470

Change-Id: Idae9763ac20ea999fa394595aacfcd1e271293ae
Reviewed-on: https://go-review.googlesource.com/125295
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2018-07-20 18:29:38 +00:00
Russ Cox
0b23c88d9f cmd/go: fix module get -u to avoid spurious new deps
If we have go get -u x1@v1 x2@v2 and x1 depends on x2,
use v2 as the "upgraded" x2 chosen by -u  instead of
letting -u pick something (say, v2.1) and then immediately
overriding it. This avoids chasing down the deps from v2.1
and also avoids them polluting the overall module graph.

This fix also lets us delete some code in the preparation step,
reducing the overall latency of get -u.

Suggested by Bryan Mills in
https://go-review.googlesource.com/c/vgo/+/122396/6#371.

Fixes #26342.

Change-Id: I50fa842304820d3f16f66a8e65dea695e2b0f88b
Reviewed-on: https://go-review.googlesource.com/124856
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-20 15:30:41 +00:00
Russ Cox
eab8208687 cmd/go: detect inconsistent 'go get' version requests
If x v1.0.0 requires y v1.2.0, then
go get x@v1.0.0 y@v1.0.0 needs to fail gracefully.

Fixes #25917.

Change-Id: I9b426af23a30310fcb0c3545a8d97feb58b8ddbe
Reviewed-on: https://go-review.googlesource.com/124800
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-20 15:30:35 +00:00
Russ Cox
a59f443897 cmd/go: case-encode versions as well as module paths in files, URLs
While writing the GOPROXY docs it occurred to me that versions
can contain upper-case letters as well. The docs therefore say
that versions are case-encoded the same as paths in the proxy
protocol (and therefore in the cache as well). Make it so.

Change-Id: Ibc0c4af0192a4af251e5dd6f2d36cda7e529099a
Reviewed-on: https://go-review.googlesource.com/124795
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-20 15:30:21 +00:00
Bryan C. Mills
c814ac44c0 cmd/go: fix TestScript/list_test_e on Windows
I forgot to run trybots on CL 123758, and the test failed on Windows because I
hard-coded a slash-delimited path.

Use the tent-in-a-box operator ([/\\]) to make the path platform-agnostic.

Change-Id: I9113ab60d21152c11e2ebdf822b58a44b1b38574
Reviewed-on: https://go-review.googlesource.com/125115
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-19 21:30:27 +00:00
Keith Randall
ecf8bac959 cmd/compile: run fmt test only in long mode
Update #26469

Change-Id: Id8b8d1c0db48374d5d3dc663a77187a73f60c9a5
Reviewed-on: https://go-review.googlesource.com/125037
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-07-19 20:34:04 +00:00
Bryan C. Mills
b47927cc26 cmd/go/internal/list: do not examine TestmainGo if the test fails to load
Fixes #25980.

Change-Id: I33c8e72871ffbb1cd1babbcd5dabc8cac0bbcaed
Reviewed-on: https://go-review.googlesource.com/123758
Reviewed-by: Russ Cox <rsc@golang.org>
2018-07-19 20:26:18 +00:00
David Chase
0b3d39c700 cmd/compile: don't run gc/ssa_test/TestGenFlowGraph in short mode
The test runs far too long for -short mode (4 seconds).

Also removed useless test of now-disconnected knob
(GO_SSA_PHI_LOC_CUTOFF), which cuts 4 seconds to 2 seconds (which
is still too long), and finished removing the disconnected knob.

Updates #26469.

Change-Id: I6c594227c4a5aaffee46832049bdbbf570d86e60
Reviewed-on: https://go-review.googlesource.com/125075
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2018-07-19 19:51:00 +00:00