Due to an inverted condition, we were emitting a "matched no packages"
warning twice in some cases and not at all in others.
For #41315
Change-Id: I472cd2d4f75811c8734852f2bdd7346f4c612816
Reviewed-on: https://go-review.googlesource.com/c/go/+/254819
Trust: Bryan C. Mills <bcmills@google.com>
Trust: Michael Matloob <matloob@golang.org>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
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Reviewed-by: Jay Conrod <jayconrod@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
In https://golang.org/cl/221397 we made commands like "go version -v"
error, since both of the command's flags only make sense when arguments
follow them. Without arguments, the command only reports Go's own
version, and the flags are most likely a mistake.
However, the script below is entirely reasonable:
export GOFLAGS=-v # make all Go commands verbose
go version
go build
After the previous CL, "go version" would error. Instead, only error if
the flag was passed explicitly, and not via GOFLAGS.
The patch does mean that we won't error on "GOFLAGS=-v go version -v",
but that very unlikely false negative is okay. The error is only meant
to help the user not misuse the flags, anyway - it's not a critical
error of any sort.
To reuse inGOFLAGS, we move it to the base package and export it there,
since it's where the rest of the GOFLAGS funcs are.
Fixes#41264.
Change-Id: I74003dd25d94bacf9ac507b5cad778fd65233321
Reviewed-on: https://go-review.googlesource.com/c/go/+/254157
Trust: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
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Reviewed-by: Bryan C. Mills <bcmills@google.com>
Since CL 254369, 'go mod graph' now reports an error when invoked
outside a module. This broke the mod_outside test, which expected
'go mod graph' to succeed with no output.
Change-Id: Ic30ee68f1f4c4d33795bdf7df70a7631fb9395e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/255017
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Run-TryBot: Jay Conrod <jayconrod@google.com>
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This makes error reporting a bit more consistent for 'go mod'
subcommands. Most of these commands only work in module mode when a
go.mod file is present.
Setting modload.ForceUseModules reports an error when GO111MODULE=off.
Setting modload.RootMode to modload.NeedRoot reports an error when no
go.mod file is present.
Change-Id: I1daa8d2971cb8658e0c804765839d903734a412e
Reviewed-on: https://go-review.googlesource.com/c/go/+/254369
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
With this change, 'go install' will install executables in module mode
without using or modifying the module in the current directory, if
there is one.
For #40276
Change-Id: I922e71719b3a4e0c779ce7a30429355fc29930bf
Reviewed-on: https://go-review.googlesource.com/c/go/+/254365
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Illumos supports iovec read/write. Add the writev wrapper to
internal/syscall/unix and use it to implement internal/poll.writev for
net.(*netFD).writeBuffers.
Change-Id: Ie256c2f96aba8e61fb21991788789a049425f792
Reviewed-on: https://go-review.googlesource.com/c/go/+/254638
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Trust: Tobias Klauser <tobias.klauser@gmail.com>
Currently, there's awkward reentrancy issue with funccompile:
funccompile -> compile -> dtypesym -> geneq/genhash/genwrapper -> funccompile
Though it's not a problem at this moment, some attempts by @mdempsky to
move order/walk/instrument into buildssa was failed, due to SSA cache
corruption.
This commit fixes that reentrancy issue, by making generated functions
to be pumped through the same compile workqueue that normal functions
are compiled. We do this by adding them to xtop, instead of calling
funccompile directly in geneq/genhash/genwrapper. In dumpdata, we look
for uncompiled functions in xtop instead of compilequeue, then finish
compiling them.
Updates #38463Fixes#33485
Change-Id: Ic9f0ce45b56ae2ff3862f17fd979253ddc144bb5
Reviewed-on: https://go-review.googlesource.com/c/go/+/254617
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This allows the global initializers function to go through normal
mid-end optimizations (e.g., inlining, escape analysis) like any other
function.
Updates #33485.
Change-Id: I9bcfe98b8628d1aca09b4c238d8d3b74c69010a5
Reviewed-on: https://go-review.googlesource.com/c/go/+/254839
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Matthew Dempsky <mdempsky@google.com>
funchdr and funcbody currently assume that either (1) Curfn == nil &&
dclcontext == PEXTERN, or (2) Curfn != nil && dclcontext == PAUTO.
This is a reasonable assumption during parsing. However, these
functions end up getting used in other contexts, and not all callers
are so disciplined about Curfn/dclcontext handling.
This CL changes them to save/restore arbitrary Curfn/dclcontext pairs
instead. This is necessary for the followup CL, which pushes fninit
earlier. Otherwise, Curfn/dclcontext fall out of sync, and funchdr
panics.
Passes toolstash-check.
Updates #33485.
Change-Id: I19b1be23db1bad6475345ae5c81bbdc66291a3a7
Reviewed-on: https://go-review.googlesource.com/c/go/+/254838
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This reverts CL 253037.
Reason for revert: The recommended way to check for a type of error is errors.As. API changes should also start with a proposal.
Change-Id: I62896717aa47ed491c2c4775d2b05d80e5e9cde3
Reviewed-on: https://go-review.googlesource.com/c/go/+/254837
Trust: Damien Neil <dneil@google.com>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
This reverts CL 254537.
Reason for revert: Reason for revert: The recommended way to check for a type of error is errors.As. API changes should also start with a proposal.
Change-Id: I07c37428575e99c80b17525833a61831d10963bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/254857
Trust: Damien Neil <dneil@google.com>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Previously, it was impossible to call FailNow in a Cleanup.
Because it can terminate a panicking goroutine and cause its
parent hangs on t.signal channel. This CL sends the signal
in a deferred call to prevent the hang.
Fixes#41355
Change-Id: I4552d3a7ea763ef86817bf9b50c0e37fb34bf20f
Reviewed-on: https://go-review.googlesource.com/c/go/+/254637
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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As of CL 251159, when 'go list -deps std' is run within GOROOT/src, it
treats the vendored external dependencies as real module dependencies,
not standard-library "vendor/" packages (which still exist in that
case, but are treated as distinct packages outside the "std" module).
Fixes#41358
Updates #30241
Change-Id: Ic23eae9829d90e74a340d49ca9052e9191597410
Reviewed-on: https://go-review.googlesource.com/c/go/+/254738
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Reviewed-by: Jay Conrod <jayconrod@google.com>
The paths may contain spaces. Quote them.
Change-Id: I1f67085a1e7c40f60282c2fea7104fb44a01e310
Reviewed-on: https://go-review.googlesource.com/c/go/+/254739
Run-TryBot: Cherry Zhang <cherryyz@google.com>
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Trust: Dmitri Shuralyov <dmitshur@golang.org>
AIX fsync syscall doesn't work on read-only files. Using fsync_range
instead allows syscall.Fsync to work on any files.
Fixes#41372
Change-Id: I66d33e847875496af53da60828c1bddf6c2b76b7
Reviewed-on: https://go-review.googlesource.com/c/go/+/254657
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
This CL ensures that responses served via CGI and FastCGI
have a Content-Type header based on the content of the
response if not explicitly set by handlers.
If the implementers of the handler did not explicitly
specify a Content-Type both CGI implementations would default
to "text/html", potentially causing cross-site scripting.
Thanks to RedTeam Pentesting GmbH for reporting this.
Fixes#40928
Fixes CVE-2020-24553
Change-Id: I82cfc396309b5ab2e8d6e9a87eda8ea7e3799473
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/823217
Reviewed-by: Russ Cox <rsc@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/252179
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
CL 96455 brings CL 57753 to Windows
However, a path comparison within it was left unquoted.
If the Go source directory resides in a path containing whitespace,
the interpreter will compare against the first portion of the path string,
and treat the remainder as an expression.
This patch amends that.
For example, consider the path
`C:\Users\Dominic Della Valle\Projects\Go\goroot\src`
Issuing `make.bat` will print out `'Della' is not recognized as an internal or external command, operable program or batch file.` before proceeding.
Change-Id: Ifcec159baeec940c29c61aa721c64c13c6fd8c14
GitHub-Last-Rev: 809ddbb4db
GitHub-Pull-Request: golang/go#41319
Reviewed-on: https://go-review.googlesource.com/c/go/+/253898
Run-TryBot: Giovanni Bajo <rasky@develer.com>
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runtime.GC() doesn't guarantee the finalizer has run, so use a channel
instead to make sure finalizer was run in call to "after()".
Fixes#41361
Change-Id: I69c801e29aea49757ea72c52e8db13239de19ddc
Reviewed-on: https://go-review.googlesource.com/c/go/+/254401
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CL 254397 attached OVARLIVE nodes to OCALLxxx nodes Nbody.
The NeedsWrapper flag is now redundant with n.Nbody.Len() > 0
condition, so use that condition instead and remove the flag.
Passes toolstash-check.
Change-Id: Iebc3e674d3c0040a876ca4be05025943d2b4fb31
Reviewed-on: https://go-review.googlesource.com/c/go/+/254398
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So we can insert theses OVARLIVE nodes right after OpStaticCall in SSA.
This helps fixing issue that unsafe-uintptr arguments are not kept alive
during return statement, or can be kept alive longer than expected.
Fixes#24491
Change-Id: Ic04a5d1bbb5c90dcfae65bd95cdd1da393a66800
Reviewed-on: https://go-review.googlesource.com/c/go/+/254397
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Allows users to check:
errors.Is(err, &UnmarshalTypeError{})
errors.Is(err, &UnmarshalFieldError{})
errors.Is(err, &InvalidUnmarshalError{})
errors.Is(err, &UnsupportedValueError{})
errors.Is(err, &MarshalerError{})
which is the recommended way of checking for kinds of errors.
SyntaxError.Is was implemented in CL 253037.
As and Unwrap relevant methods will be added in future CLs.
Change-Id: I1f8a503b8fdc0f3afdfe9669a91f3af8d960e028
GitHub-Last-Rev: 930cda5384
GitHub-Pull-Request: golang/go#41360
Reviewed-on: https://go-review.googlesource.com/c/go/+/254537
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Allows users to check:
errors.Is(err, &json.SyntaxError{})
which is the recommended way of checking for kinds of errors.
Change-Id: I20dc805f20212765e9936a82d9cb7822e73ec4ef
GitHub-Last-Rev: e2627ccf8e
GitHub-Pull-Request: golang/go#41210
Reviewed-on: https://go-review.googlesource.com/c/go/+/253037
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com>
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We want to error early if GOFLAGS contains any flag that isn't known to
any cmd/go command. Thus, at init time we would recursively use VisitAll
on each of the flagsets to populate a map of all registered flags.
This was unfortunate, as populating said map constituted a whole 5% of
the run-time of 'go env GOARCH'. This is because VisitAll is pretty
expensive; it copies all the maps from the flagset's map to a slice,
sorts the slice, then does one callback per flag.
First, this was a bit wasteful. We only ever needed to query the
knownFlag map if GOFLAGS wasn't empty. If it's empty, there's no work to
do, thus we can skip the map populating work.
Second and most important, we don't actually need the map at all. A
flag.FlagSet already has a Lookup method, so we can simply recursively
call those methods for each flag in GOFLAGS. Add a hasFlag func to make
that evident.
This mechanism is different; its upfront cost is none, but it will
likely mean a handful of map lookups for each flag in GOFLAGS. However,
that tradeoff is worth it; we don't expect GOFLAGS to contain thousands
of flags. The most likely scenario is less than a dozen flags, in which
case constructing a "unified" map is not at all a net win.
One possible reason the previous mechanism was that way could be
AddKnownFlag. Thankfully, the one and only use of that API was removed
last year when Bryan cleaned up flag parsing in cmd/go.
The wins for the existing benchmark with an empty GOFLAGS are
significant:
name old time/op new time/op delta
ExecGoEnv-8 575µs ± 1% 549µs ± 2% -4.44% (p=0.000 n=7+8)
name old sys-time/op new sys-time/op delta
ExecGoEnv-8 1.69ms ± 1% 1.68ms ± 2% ~ (p=0.281 n=7+8)
name old user-time/op new user-time/op delta
ExecGoEnv-8 1.80ms ± 1% 1.66ms ± 2% -8.09% (p=0.000 n=7+8)
To prove that a relatively large number of GOFLAGS isn't getting
noticeably slower, we measured that as well, via benchcmd and GOFLAGS
containing 50 valid flags:
GOFLAGS=$(yes -- -race | sed 50q) benchcmd -n 500 GoEnvGOFLAGS go env GOARCH
And the result, while noisy, shows no noticeable difference (note that
it measures 3ms instead of 0.6ms since it's sequential):
name old time/op new time/op delta
GoEnvGOFLAGS 3.04ms ±32% 3.03ms ±35% ~ (p=0.156 n=487+481)
Finally, we've improved the existing Go benchmark. Now it's parallel,
and it also reports sys-time and user-time, which are useful metrics.
Change-Id: I9b4551415cedf2f819eb184a02324b8bd919e2bd
Reviewed-on: https://go-review.googlesource.com/c/go/+/248757
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
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This CL changes "T literal.M" error message to "T{...}.M". It's clearer
expression and focusing user on actual issue.
Updates #38745
Change-Id: I84b455a86742f37e0bde5bf390aa02984eecc3c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/253677
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This is a refactoring intended to break the dependency from
internal/modfetch to internal/get. No change in functionality is intended.
Change-Id: If51aba7139cc0b62ecc9ba454c055c99e8f36f0f
Reviewed-on: https://go-review.googlesource.com/c/go/+/254364
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Reviewed-by: Michael Matloob <matloob@golang.org>
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'go mod download' calls WriteGoMod once via modload.ListModules when
it loads the build list. This saves sums for go.mod files needed by
MVS, but the write occurs before any zip files are downloaded.
With this change, 'go mod download' calls WriteGoMod again (and thus,
modfetch.WriteGoSum) after downloading and verifying module zip files,
so the sums of the zip files will be saved, too.
Fixes#41341
Change-Id: I7d56754aa255256ed45fd93cb154c2e6ea5f45a9
Reviewed-on: https://go-review.googlesource.com/c/go/+/254357
Run-TryBot: Jay Conrod <jayconrod@google.com>
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On darwin, we put read-only data in __TEXT segment on AMD64 in
exe (non-PIE) buildmode, and in __DATA on everywhere else. This
is not ideal: things in __DATA segment are not read-only, and
being mapped R/W may use more run-time resources.
In fact, newer darwin systems support a __DATA_CONST segment,
which the dynamic linker will map it read-only after applying
relocations. Use that.
Fixes#38830.
Change-Id: Ic281e6c6ca8ef5fec4bb7c5b71c50dd5393e78ae
Reviewed-on: https://go-review.googlesource.com/c/go/+/253919
Reviewed-by: Than McIntosh <thanm@google.com>
When -mod=readonly is set, Import will now allow imports from
replacements without explicit requirements. With -mod=mod, this would
add a new requirement but does not trigger a module lookup, so it's
determinisitic.
Before reporting an error for an unknown import with -mod=readonly,
check whether the import is valid. If there's a typo in the import,
that's more relevant.
For #40728
Change-Id: I05e138ff76ba3d0eb2e3010c15589fa363deb8d3
Reviewed-on: https://go-review.googlesource.com/c/go/+/253745
Run-TryBot: Jay Conrod <jayconrod@google.com>
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Reviewed-by: Bryan C. Mills <bcmills@google.com>
Keep track of whether the -mod flag was set explicitly. When
-mod=readonly is the default, we'll want to adjust our error messages
if it's set explicitly.
Also, register the -mod, -modcacherw, and -modfile flags in functions
in internal/base instead of internal/work. 'go mod' commands that
don't load packages shouldn't depend on internal/work.
For #40728
Change-Id: I272aea9e19908ba37e151baac4ea8630e90f241f
Reviewed-on: https://go-review.googlesource.com/c/go/+/253744
Run-TryBot: Jay Conrod <jayconrod@google.com>
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In the deadcode pass, a type symbol may be marked twice, one
without UsedInIface, one with. For the second time, don't
update the Reachparent graph, so it only records the path of
the first time the symbol is reached. This ensures the
Reachparent graph is acyclic.
TODO: add a test. (This only affects GOEXPERIMENT=fieldtrack)
Change-Id: I68e8a1a69c3830bc8aee5df946151dc22dcb2b29
Reviewed-on: https://go-review.googlesource.com/c/go/+/254297
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That port is gone.
Change-Id: I212d435e290d1890d6cd5531be98bb692650595e
Reviewed-on: https://go-review.googlesource.com/c/go/+/254077
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BenchmarkFullASCIIRune tests the performance of function utf8.FullRune,
which will be inlined in BenchmarkFullASCIIRune. Since the return value
of FullRune is not referenced, it will be removed as dead code.
This CL makes the FullRune functions return value referenced by a global
variable to avoid this point. In addition, this CL adds one more benchmark
to cover more code paths, and puts them together as sub benchmarks of
BenchmarkFullRune.
Change-Id: I6e79f4c087adf70e351498a4b58d7482dcd1ec4a
Reviewed-on: https://go-review.googlesource.com/c/go/+/233979
Run-TryBot: eric fang <eric.fang@arm.com>
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This CL adds USHLL, USHLL2, UZP1, UZP2, and BIF instructions requested
by #40725. And since UXTL* are aliases of USHLL*, this CL also merges
them into one case.
Updates #40725
Change-Id: I404a4fdaf953319f72eea548175bec1097a2a816
Reviewed-on: https://go-review.googlesource.com/c/go/+/253659
Reviewed-by: Cherry Zhang <cherryyz@google.com>
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Otherwise we’d still be writing that we're building cmd/dist
even if GOROOT_BOOTSTRAP we’re wrongly set.
Change-Id: I940e18c3cebae5664f85babc9919e9eb215d5093
Reviewed-on: https://go-review.googlesource.com/c/go/+/253877
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Enable VBSL, VBIT, VCMTST, VUXTL VUXTL2 and FMOVQ SIMD
instructions required by the issue #40725. And FMOVQ
instrucion is used to move a large constant to a Vn
register.
Add test cases.
Fixes#40725
Change-Id: I1cac1922a0a0165d698a4b73a41f7a5f0a0ad549
Reviewed-on: https://go-review.googlesource.com/c/go/+/249758
Reviewed-by: Cherry Zhang <cherryyz@google.com>
I found the control flow of this function a bit tricky to reason about
due to nesting and interaction between conditions and iteration. This
change factors out a helper function that can return early instead of
mixing conditionals and 'continue' statements.
Also remove the (unused) ModuleUsedDirectly function.
For #36460
Change-Id: I60a2a5a1b32989e5a17a14e1a8c858b280cda8f2
Reviewed-on: https://go-review.googlesource.com/c/go/+/251998
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Reviewed-by: Jay Conrod <jayconrod@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
With lazy loading, the “build list” can be refined as packages are loaded.
Rename functions that return the build list to more precisely describe
the set of modules returned by the call.
Also eliminate a redundant call to LoadBuildList (right before
ListModules, which itself begins with the same call).
For #36460
Change-Id: I0fc4f9dd7602e0df5e166e329ee5d516d810ca53
Reviewed-on: https://go-review.googlesource.com/c/go/+/249878
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
