CL 21462 and CL 21463 made this message say explicitly that the problem
was a struct field in a map, but the word "directly" is unnecessary,
sounds wrong, and makes the error long.
Change-Id: I2fb68cdaeb8bd94776b8022cf3eae751919ccf6f
Reviewed-on: https://go-review.googlesource.com/23373
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: David Chase <drchase@google.com>
CL 21057 added this method during the Go 1.7 cycle
(so it is not yet released and still possible to revise).
This makes it clearer that the method is not doing something
(like func Indent does), but just changing a setting about doing
something later.
Also document that this is in some sense irreversible.
I think that's probably a mistake but the original CL discussion
claimed it as a feature, so I'll leave it alone.
For #6492.
Change-Id: If4415c869a9196501056c143811a308822d5a420
Reviewed-on: https://go-review.googlesource.com/23295
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
DisableHTMLEscaping is now SetEscapeHTML, allowing the escaping
to be toggled, not just disabled. This API is new for Go 1.7,
so there are no compatibility concerns (quite the opposite,
the point is to fix the API before we commit to it in Go 1.7).
Change-Id: I96b9f8f169a9c44995b8a157a626eb62d0b6dea7
Reviewed-on: https://go-review.googlesource.com/23293
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
In earlier versions of Go the result was simply "?".
A change in this cycle made the result echo back the hex bytes
of the address, which is certainly useful, but now the result is
not clearly indicating an error. Put the "?" back, at the beginning
of the hex string, to make the invalidity of the string clearer.
Change-Id: I3e0f0b6a005601cd98d982a62288551959185b40
Reviewed-on: https://go-review.googlesource.com/23376
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The use of a prefix check was too liberal.
Noted in review after submit.
Change-Id: I4fe1df660997efd225609e818040b8392fab79f0
Reviewed-on: https://go-review.googlesource.com/23375
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
CL 19725 changed the encoding of []typedByte to look for
typedByte.MarshalJSON and typedByte.MarshalText.
Previously it was handled like []byte, producing a base64 encoding of the underlying byte data.
CL 19725 forgot to look for (*typedByte).MarshalJSON and (*typedByte).MarshalText,
as the marshaling of other slices would. Add test and fix for those.
This CL also adds tests that the decoder can handle both the old and new encodings.
(This was true even in Go 1.6, which is the only reason we can consider this
not an incompatible change.)
For #13783.
Change-Id: I7cab8b6c0154a7f2d09335b7fa23173bcf856c37
Reviewed-on: https://go-review.googlesource.com/23294
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
Now that CSE uses dom tree to order partitions, we need the
dom tree computed before benchmarking CSE.
Fixes#15801
Change-Id: Ifa4702c7b75250f34de185e69a880b3f3cc46a12
Reviewed-on: https://go-review.googlesource.com/23361
Reviewed-by: David Chase <drchase@google.com>
In n:1 variable declarations (multiple lhs variables with single
multi-valued initialization expression) where also a variable
type is provided, make sure that that type is assigned to all
variables on the lhs before the init expression assignment is
checked. Otherwise, (some) variables are assumed to take the type
of the corresponding value of the multi-valued init expression.
Fixes#15755.
Change-Id: I969cb5a95c85e28dbb38abd7fa7df16ff5554c03
Reviewed-on: https://go-review.googlesource.com/23313
Reviewed-by: Alan Donovan <adonovan@google.com>
The source xml data has changed, so running genzabbrs.go
regenerates a new time zone file in zoneinfo_abbrs_windows.go
which adds some zones and adjusts others.
Now set export ZONEINFO=$GOROOT/lib/time/zoneinfo.zip to use zoneinfo.zip in go tip.
Change-Id: I19f72359cc808094e5dcb420e480a00c6b2205d7
Reviewed-on: https://go-review.googlesource.com/23321
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Updates x/net/http2 to git rev 0c607074 for https://golang.org/cl/23311,
"http2: prevent Server from sending status 100 header after anything else"
New test is in the x/net/http2 package (not bundled to std).
Fixes#14030
Change-Id: Ifc6afa4a5fe35977135428f6d0e9f7c164767720
Reviewed-on: https://go-review.googlesource.com/23312
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Also renames the test function to TestDNSFlood.
Updates #15659.
Change-Id: Ia562004c43bcc19c2fee9440321c27b591f85da5
Reviewed-on: https://go-review.googlesource.com/23077
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Ignore respective bit in export data, but leave the info to
minimize format changes for 1.7. Scheduled to remove by 1.8.
For #15772.
Change-Id: Ifb3beea655367308a4e2d5dc8cb625915f904287
Reviewed-on: https://go-review.googlesource.com/23285
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Updates x/net/http2 to git rev 202ff482 for https://golang.org/cl/23235 (Expect:
100-continue support for HTTP/2)
Fixes a flaky test too, and changes the automatic HTTP/2 behavior to
no longer special-case the DefaultTransport, because
ExpectContinueTimeout is no longer unsupported by the HTTP/2
transport.
Fixes#13851Fixes#15744
Change-Id: I3522aace14179a1ca070fd7063368a831167a0f7
Reviewed-on: https://go-review.googlesource.com/23254
Reviewed-by: Andrew Gerrand <adg@golang.org>
This patch adds Unshare flags to SysProcAttr for Linux systems.
Fixes#1954
Change-Id: Id819c3f92b1474e5a06dd8d55f89d74a43eb770c
Reviewed-on: https://go-review.googlesource.com/23233
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Non-syntax errors are always counted to determine if to exit
early, but then deduplication eliminates them. This can lead
to situations which report "too many errors" and only one
error is shown.
De-duplicate non-syntax errors early, at least the ones that
appear consecutively, and only count the ones actually being
shown. This doesn't work perfectly as they may not appear in
sequence, but it's cheap and good enough.
Fixes#14136.
Change-Id: I7b11ebb2e1e082f0d604b88e544fe5ba967af1d7
Reviewed-on: https://go-review.googlesource.com/23259
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
In Go versions 1 up to and including Go 1.6,
ResponseRecorder.HeaderMap was both the map that handlers got access
to, and was the map tests checked their results against. That did not
mimic the behavior of the real HTTP server (Issue #8857), so HeaderMap
was changed to be a snapshot at the first write in
https://golang.org/cl/20047. But that broke cases where the Handler
never did a write (#15560), so revert the behavior.
Instead, introduce the ResponseWriter.Result method, returning an
*http.Response. It subsumes ResponseWriter.Trailers which was added
for Go 1.7 in CL 20047. Result().Header now contains the correct
answer, and HeaderMap is unchanged in behavior from previous Go
releases, so we don't break people's tests. People wanting the correct
behavior can use ResponseWriter.Result.
Fixes#15560
Updates #8857
Change-Id: I7ea9b56a6b843103784553d67f67847b5315b3d2
Reviewed-on: https://go-review.googlesource.com/23257
Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Currently it's possible for user code to exploit the high scheduler
priority of the GC worker in conjunction with the runnext optimization
to elevate a user goroutine to high priority so it will always run
even if there are other runnable goroutines.
For example, if a goroutine is in a tight allocation loop, the
following can happen:
1. Goroutine 1 allocates, triggering a GC.
2. G 1 attempts an assist, but fails and blocks.
3. The scheduler runs the GC worker, since it is high priority.
Note that this also starts a new scheduler quantum.
4. The GC worker does enough work to satisfy the assist.
5. The GC worker readies G 1, putting it in runnext.
6. GC finishes and the scheduler runs G 1 from runnext, giving it
the rest of the GC worker's quantum.
7. Go to 1.
Even if there are other goroutines on the run queue, they never get a
chance to run in the above sequence. This requires a confluence of
circumstances that make it unlikely, though not impossible, that it
would happen in "real" code. In the test added by this commit, we
force this confluence by setting GOMAXPROCS to 1 and GOGC to 1 so it's
easy for the test to repeated trigger GC and wake from a blocked
assist.
We fix this by making GC always put user goroutines at the end of the
run queue, instead of in runnext. This makes it so user code can't
piggy-back on the GC's high priority to make a user goroutine act like
it has high priority. The only other situation where GC wakes user
goroutines is waking all blocked assists at the end, but this uses the
global run queue and hence doesn't have this problem.
Fixes#15706.
Change-Id: I1589dee4b7b7d0c9c8575ed3472226084dfce8bc
Reviewed-on: https://go-review.googlesource.com/23172
Reviewed-by: Rick Hudson <rlh@golang.org>
Currently ready always puts the readied goroutine in runnext. We're
going to have to change this for some uses, so add a flag for whether
or not to use runnext.
For now we always pass true so this is a no-op change.
For #15706.
Change-Id: Iaa66d8355ccfe4bbe347570cc1b1878c70fa25df
Reviewed-on: https://go-review.googlesource.com/23171
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
When the generated stub functions write back the results to the stack,
they can in some cases be writing to the same memory on the g0 stack.
There is no race here (assuming there is no race in the Go code), but
the thread sanitizer does not know that. Turn off the thread sanitizer
for the stub functions to prevent false positive warnings.
Current clang suggests the no_sanitize("thread") attribute, but that
does not work with clang 3.6 or GCC. clang 3.6, GCC, and current clang
all support the no_sanitize_thread attribute, so use that
unconditionally.
The test case and first version of the patch are from Dmitriy Vyukov.
Change-Id: I80ce92824c6c8cf88ea0fe44f21cf50cf62474c9
Reviewed-on: https://go-review.googlesource.com/23252
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
OpenBSD 6.0 (due out November 2016) will support PT_TLS, which will
allow for the OpenBSD cgo pthread_create() workaround to be removed.
However, in order for Go to continue working on supported OpenBSD
releases (the current release and the previous release - 5.9 and 6.0,
once 6.0 is released), we cannot enable PT_TLS immediately. Instead,
adjust the existing code so that it works with the previous TCB
allocation and the new TIB allocation. This allows the same Go
runtime to work on 5.8, 5.9 and later 6.0.
Once OpenBSD 5.9 is no longer supported (May 2017, when 6.1 is
released), PT_TLS can be enabled and the additional cgo runtime
code removed.
Change-Id: I3eed5ec593d80eea78c6656cb12557004b2c0c9a
Reviewed-on: https://go-review.googlesource.com/23197
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Joel Sing <joel@sing.id.au>
TryBot-Result: Gobot Gobot <gobot@golang.org>
They get rewritten to NEWs, and they must be marked as escaping
so walk doesn't try to allocate them back onto the stack.
Fixes#15733
Change-Id: I433033e737c3de51a9e83a5a273168dbc9110b74
Reviewed-on: https://go-review.googlesource.com/23223
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
The test case in #15639 somehow causes an invalid syscall frame. The
failure is obscured because the throw occurs when throwsplit == true,
which causes a "stack split at bad time" error when trying to print the
throw message.
This CL fixes the "stack split at bad time" by using systemstack. No
test because there shouldn't be any way to trigger this error anyhow.
Update #15639.
Change-Id: I4240f3fd01bdc3c112f3ffd1316b68504222d9e1
Reviewed-on: https://go-review.googlesource.com/23153
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Instead, decline the session and do a full handshake. The semantics of
cross-version resume are unclear, and all major client implementations
treat this as a fatal error. (This doesn't come up very much, mostly if
the client does the browser version fallback without sharding the
session cache.)
See BoringSSL's bdf5e72f50e25f0e45e825c156168766d8442dde and OpenSSL's
9e189b9dc10786c755919e6792e923c584c918a1.
Change-Id: I51ca95ac1691870dd0c148fd967739e2d4f58824
Reviewed-on: https://go-review.googlesource.com/21152
Reviewed-by: Adam Langley <agl@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Updates x/net/http2 to golang.org/cl/23220
(http2: with Go 1.7 set Request.Context in ServeHTTP handlers)
Fixes#15134
Change-Id: I73bac2601118614528f051e85dab51dc48e74f41
Reviewed-on: https://go-review.googlesource.com/23221
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
Make the temporary, conservative restrictions from rev 79d9f48c in Go
1.6 permanent, and also don't do automatic TLS if the user configured
a Dial or DialTLS hook. (Go 1.7 has Transport.Dialer instead, for
tweaking dialing parameters)
Fixes#14275
Change-Id: I5550d5c1e3a293e103eb4251a3685dc204a23941
Reviewed-on: https://go-review.googlesource.com/23222
Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Run live vars test only on ssa builds.
We can't just drop KeepAlive ops during regalloc. We need
to replace them with copies.
Change-Id: Ib4b3b1381415db88fdc2165fc0a9541b73ad9759
Reviewed-on: https://go-review.googlesource.com/23225
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Introduce a KeepAlive op which makes sure that its argument is kept
live until the KeepAlive. Use KeepAlive to mark pointer input
arguments as live after each function call and at each return.
We do this change only for pointer arguments. Those are the
critical ones to handle because they might have finalizers.
Doing compound arguments (slices, structs, ...) is more complicated
because we would need to track field liveness individually (we do
that for auto variables now, but inputs requires extra trickery).
Turn off the automatic marking of args as live. That way, when args
are explicitly nulled, plive will know that the original argument is
dead.
The KeepAlive op will be the eventual implementation of
runtime.KeepAlive.
Fixes#15277
Change-Id: I5f223e65d99c9f8342c03fbb1512c4d363e903e5
Reviewed-on: https://go-review.googlesource.com/22365
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
In https://golang.org/3210, Transport errors occurring before
receiving response headers were wrapped in another error type to
indicate to the retry logic elsewhere that the request might be
re-tryable. But a check for err == io.EOF was missed, which then became
false once io.EOF was wrapped in the beforeRespHeaderError type.
The beforeRespHeaderError was too fragile. Remove it. I tried to fix
it in an earlier version of this CL and just broke different things
instead.
Also remove the "markBroken" method. It's redundant and confusing.
Also, rename the checkTransportResend method to shouldRetryRequest and
make it return a bool instead of an error. This also helps readability.
Now the code recognizes the two main reasons we'd want to retry a
request: because we never wrote the request in the first place (so:
count the number of bytes we've written), or because the server hung
up on us before we received response headers for an idempotent request.
As an added bonus, this could make POST requests safely re-tryable
since we know we haven't written anything yet. But it's too late in Go
1.7 to enable that, so we'll do that later (filed #15723).
This also adds a new internal (package http) test, since testing this
blackbox at higher levels in transport_test wasn't possible.
Fixes#15446
Change-Id: I2c1dc03b1f1ebdf3f04eba81792bd5c4fb6b6b66
Reviewed-on: https://go-review.googlesource.com/23160
Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
in root_cgo_darwin.go only certificates from the System Domain
were being used in FetchPEMRoots. This patch adds support for
getting certificates from all three domains (System, Admin,
User). Also it will only read trusted certificates from those
Keychains. Because it is possible to trust a non Root certificate,
this patch also adds a checks to see if the Subject and Issuer
name are the same.
Fixes#14514
Change-Id: Ia03936d7a61d1e24e99f31c92f9927ae48b2b494
Reviewed-on: https://go-review.googlesource.com/20351
Reviewed-by: Russ Cox <rsc@golang.org>
The fact that crypto/ecdsa.Verify didn't reject negative inputs was a
mistake on my part: I had unsigned numbers on the brain. However, it
doesn't generally cause problems. (ModInverse results in zero, which
results in x being zero, which is rejected.)
The amd64 P-256 code will crash when given a large, negative input.
This fixes both crypto/ecdsa to reject these values and also the P-256
code to ignore the sign of inputs.
Change-Id: I6370ed7ca8125e53225866f55b616a4022b818f8
Reviewed-on: https://go-review.googlesource.com/22093
Run-TryBot: Adam Langley <agl@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Go is being proposed as an officially supported language for elements of
OpenStack:
https://review.openstack.org/#/c/312267/
As such, repos that exist in OpenStack's git infrastructure
are likely to become places from which people might want to go get
things. Allow optional .git suffixes to allow writing code that depends
on git.openstack.org repos that will work with older go versions while
we wait for this support to roll out.
Change-Id: Ia64bdb1dafea33b1c3770803230d30ec1059df22
Reviewed-on: https://go-review.googlesource.com/23135
Reviewed-by: Russ Cox <rsc@golang.org>
sparseSet and sparseMap only need 32 bit integers in their
arrays, since a sparseEntry key is also limited to 32 bits.
This appears to reduce the space allocated for at least
one pathological compilation by 1%, perhaps more.
Not necessarily for 1.7, but it saves a little and is very
low-risk.
Change-Id: Icf1185859e9f5fe1261a206b441e02c34f7d02fd
Reviewed-on: https://go-review.googlesource.com/22972
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
On some systems, gdb is set to: "startup-with-shell on". This
breaks runtime_test. This just make sure gdb does not start by
spawning a shell.
Fixes#15354
Change-Id: Ia040931c61dea22f4fdd79665ab9f84835ecaa70
Reviewed-on: https://go-review.googlesource.com/23142
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Previously statements like
f(unsafe.Pointer(g()), int(h()))
would be reordered into a sequence of statements like
autotmp_g := g()
autotmp_h := h()
f(unsafe.Pointer(autotmp_g), int(autotmp_h))
which can leave g's temporary value on the stack as a uintptr, rather
than an unsafe.Pointer. Instead, recognize uintptr-to-unsafe.Pointer
conversions when reordering function calls to instead produce:
autotmp_g := unsafe.Pointer(g())
autotmp_h := h()
f(autotmp_g, int(autotmp_h))
Fixes#15329.
Change-Id: I2cdbd89d233d0d5c94791513a9fd5fd958d11ed5
Reviewed-on: https://go-review.googlesource.com/22273
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Looks like some version of Android still fails with "servname not
supported for ai_socktype". It probably doesn't support
ai_socktype=SOCK_STREAM.
Updates #14576.
Change-Id: I77ecff147d5b759e3281b3798c60f150a4aab811
Reviewed-on: https://go-review.googlesource.com/23194
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Fixes#14793
Change-Id: I408056d096cd6a999fa5e349704b5ea8e26d2e4e
Reviewed-on: https://go-review.googlesource.com/23201
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The signal might get delivered to a different thread, and that thread
might not run again before the currently running thread returns and
exits. Sleep to give the other thread time to pick up the signal and
crash.
Not tested for all cases, but, optimistically:
Fixes#14063.
Change-Id: Iff58669ac6185ad91cce85e0e86f17497a3659fd
Reviewed-on: https://go-review.googlesource.com/23203
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Mikio Hara <mikioh.mikioh@gmail.com>
Update the doc for CreateCertificateRequest
to state that it creates a
`new certificate request`
instead of just a
`new certificate`
Fixes#14649.
Change-Id: Ibbbcf91d74168998990990e78e5272a6cf294d51
Reviewed-on: https://go-review.googlesource.com/23204
Reviewed-by: Russ Cox <rsc@golang.org>
Verify that for a server doing chunked encoding, with the final data
and EOF arriving together, the client will reuse the connection even
if it closes the body without seeing an EOF. The server sends at least
one non-zero chunk and one zero chunk. This verifies that the client's
bufio reading reads ahead and notes the EOF, so even if the JSON
decoder doesn't read the EOF itself, as long as somebody sees it, a
close won't forcible tear down the connection. This was true at least
of https://golang.org/cl/21291
No code change. Test already passed (even with lots of runs, including
in race mode with randomized goroutine scheduling).
Updates #15703
Change-Id: I2140b3eec6b099b6b6e54f153fe271becac5d949
Reviewed-on: https://go-review.googlesource.com/23200
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
racefini calls __tsan_fini which is C code and at the end of it
invoked the standard C library exit(3) call. This has undefined
behavior if invoked more than once. Specifically in C++ programs
it caused static destructors to run twice. At least on glibc
impls it also means the at_exit handlers list (where those are
stored) also free's a list entry when it completes these. So invoking
twice results in a double free at exit which trips debug memory
allocation tracking.
Fix all of this by using an atomic as a boolean barrier around
calls to racefini being invoked > 1 time.
Fixes#15578
Change-Id: I49222aa9b8ded77160931f46434c61a8379570fc
Reviewed-on: https://go-review.googlesource.com/22882
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Run-TryBot: Dmitry Vyukov <dvyukov@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Fixes#15675
Change-Id: I8bad220988e5d690f20804db970b2db037c81187
Reviewed-on: https://go-review.googlesource.com/23086
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The initial implementation of reflect.StructOf in
https://golang.org/cl/9251 had a limitation that field names had to be
ASCII, which was later lifted by https://golang.org/cl/21777. Remove
the out-of-date documentation disallowing UTF-8 field names.
Updates: #5748
Updates: #15064
Change-Id: I2c5bfea46bfd682449c6e847fc972a1a131f51b7
Reviewed-on: https://go-review.googlesource.com/23170
Reviewed-by: David Crawshaw <crawshaw@golang.org>
os.SIGINT is not defined, os.Interrupt or syscall.SIGINT should be used.
Change-Id: I39867726d28e179d1160a4fd353b7bea676c9dbb
Reviewed-on: https://go-review.googlesource.com/23127
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This change drops parseInterfaceTable which becomes unnecessary by the
golang.org/x/net/route plumbing.
Change-Id: I05f96e347de950bb1e9292bb3eeff01bb40e292f
Reviewed-on: https://go-review.googlesource.com/23125
Run-TryBot: Mikio Hara <mikioh.mikioh@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
before this change, when io.MultiReader was called many times but contain few
underlying readers, calls to Read were unnecessarily expensive.
Fixes#13558
Change-Id: I3ec4e88c7b50c075b148331fb1b7348a5840adbe
Reviewed-on: https://go-review.googlesource.com/17873
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Adds a transparent sort to the mime/multipart package, which is
only used in the CreatePart func. This will ensure the ordering
of the MIMEHeader.
The point of this change was to ensure the output would be consistent
and something that could be depended on.
Fixes#13522
Change-Id: I9584ef9dbe98ce97d536d897326914653f8d9ddf
Reviewed-on: https://go-review.googlesource.com/17497
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Issue #15613 points out that the darwin builders have been getting
regular failures in which a process that should exit with a SIGPIPE
signal is instead exiting with exit status 2. The code calls
runtime.raise. On most systems runtime.raise is the equivalent of
pthread_kill(gettid(), sig); that is, it kills the thread with the
signal, which should ensure that the program does not keep going. On
darwin, however, runtime.raise is actually kill(getpid(), sig); that is,
it sends a signal to the entire process. If the process decides to
deliver the signal to a different thread, then it is possible that in
some cases the thread that calls raise is able to execute the next
system call before the signal is actually delivered. That would cause
the observed error.
I have not been able to recreate the problem myself, so I don't know
whether this actually fixes it. But, optimistically:
Fixed#15613.
Change-Id: I60c0a9912aae2f46143ca1388fd85e9c3fa9df1f
Reviewed-on: https://go-review.googlesource.com/23152
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This adds a sparse method for locating nearest ancestors
in a dominator tree, and checks blocks with more than one
predecessor for differences and inserts phi functions where
there are.
Uses reversed post order to cut number of passes, running
it from first def to last use ("last use" for paramout and
mem is end-of-program; last use for a phi input from a
backedge is the source of the back edge)
Includes a cutover from old algorithm to new to avoid paying
large constant factor for small programs. This keeps normal
builds running at about the same time, while not running
over-long on large machine-generated inputs.
Add "phase" flags for ssa/build -- ssa/build/stats prints
number of blocks, values (before and after linking references
and inserting phis, so expansion can be measured), and their
product; the product governs the cutover, where a good value
seems to be somewhere between 1 and 5 million.
Among the files compiled by make.bash, this is the shape of
the tail of the distribution for #blocks, #vars, and their
product:
#blocks #vars product
max 6171 28180 173,898,780
99.9% 1641 6548 10,401,878
99% 463 1909 873,721
95% 152 639 95,235
90% 84 359 30,021
The old algorithm is indeed usually fastest, for 99%ile
values of usually.
The fix to LookupVarOutgoing
( https://go-review.googlesource.com/#/c/22790/ )
deals with some of the same problems addressed by this CL,
but on at least one bug ( #15537 ) this change is still
a significant help.
With this CL:
/tmp/gopath$ rm -rf pkg bin
/tmp/gopath$ time go get -v -gcflags -memprofile=y.mprof \
github.com/gogo/protobuf/test/theproto3/combos/...
...
real 4m35.200s
user 13m16.644s
sys 0m36.712s
and pprof reports 3.4GB allocated in one of the larger profiles
With tip:
/tmp/gopath$ rm -rf pkg bin
/tmp/gopath$ time go get -v -gcflags -memprofile=y.mprof \
github.com/gogo/protobuf/test/theproto3/combos/...
...
real 10m36.569s
user 25m52.286s
sys 4m3.696s
and pprof reports 8.3GB allocated in the same larger profile
With this CL, most of the compilation time on the benchmarked
input is spent in register/stack allocation (cumulative 53%)
and in the sparse lookup algorithm itself (cumulative 20%).
Fixes#15537.
Change-Id: Ia0299dda6a291534d8b08e5f9883216ded677a00
Reviewed-on: https://go-review.googlesource.com/22342
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This should help with debugging failures.
For #15138 and #15477.
Change-Id: I77db2b6375d8b4403d3edf5527899d076291e02c
Reviewed-on: https://go-review.googlesource.com/23134
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
The convention for writing something like "64 kB" is 64<<10, since
this is easier to read than 1<<16. Update gcBitsChunkBytes to follow
this convention.
Change-Id: I5b5a3f726dcf482051ba5b1814db247ff3b8bb2f
Reviewed-on: https://go-review.googlesource.com/23132
Reviewed-by: Rick Hudson <rlh@golang.org>
Make clear negotiation can happen via NPN or ALPN, similar to
http.Transport.TLSNextProto and x/net/http2.NextProtoTLS.
Change-Id: Ied00b842bc04e11159d6d2107beda921cefbc6ca
Reviewed-on: https://go-review.googlesource.com/23108
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
If client does not provided User-Agent header, do not set default one
used by net/http package when doing request to backend.
Fixes#15524
Change-Id: I9a46bb3b7ec106bc7c3071e235b872d279994d67
Reviewed-on: https://go-review.googlesource.com/23089
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
There was a typo introduced in the initial
implementation of the Plan 9 support of
the mime package.
On Plan 9, the mime type file name should be
/sys/lib/mimetype instead of /sys/lib/mimetypes.
Change-Id: If0f0a9b6f3fbfa8dde551f790e83bdd05e8f0acb
Reviewed-on: https://go-review.googlesource.com/23087
Run-TryBot: Minux Ma <minux@golang.org>
Reviewed-by: Minux Ma <minux@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This change makes use of new routing message APIs for BSD variants to
support FreeBSD 11 and newer versions of other BSDs.
Fixes#7849.
Fixes#14724.
Change-Id: I56c7886d6622cdeddd7cc29c8a8062dcc06216d5
Reviewed-on: https://go-review.googlesource.com/22451
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Mikio Hara <mikioh.mikioh@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The 17-31 byte code is broken. Disabled it.
Added a bunch of tests to at least cover the cases
in indexShortStr. I'll channel Brad and wonder why
this CL ever got in without any tests.
Fixes#15679
Change-Id: I84a7b283a74107db865b9586c955dcf5f2d60161
Reviewed-on: https://go-review.googlesource.com/23106
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Local.String() returns "Local" on every OS, but windows.
Change windows code to do like others.
Updates #15568
Change-Id: I7a4d2713d940e2a01cff9d7f5cefc89def07546a
Reviewed-on: https://go-review.googlesource.com/23078
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
The resource is available over (and redirects to) HTTPS, it seems like a good
idea to save a redirect and ensure an encrypted connection.
Change-Id: I262c7616ae289cdd756b6f67573ba6bd7e3e0ca6
Reviewed-on: https://go-review.googlesource.com/23104
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Currently the heapBitsSetType documentation says that there are no
races on the heap bitmap, but that isn't exactly true. There are no
*write-write* races, but there are read-write races. Expand the
documentation to explain this and why it's okay.
Change-Id: Ibd92b69bcd6524a40a9dd4ec82422b50831071ed
Reviewed-on: https://go-review.googlesource.com/23092
Reviewed-by: Rick Hudson <rlh@golang.org>
Currently we only execute a publication barrier for scan objects (and
skip it for noscan objects). This used to be okay because GC would
never consult the object itself (so it wouldn't observe uninitialized
memory even if it found a pointer to a noscan object), and the heap
bitmap was pre-initialized to noscan.
However, now we explicitly initialize the heap bitmap for noscan
objects when we allocate them. While the GC will still never consult
the contents of a noscan object, it does need to see the initialized
heap bitmap. Hence, we need to execute a publication barrier to make
the bitmap visible before user code can expose a pointer to the newly
allocated object even for noscan objects.
Change-Id: Ie4133c638db0d9055b4f7a8061a634d970627153
Reviewed-on: https://go-review.googlesource.com/23043
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
By picking up a spurious tFlagExtraStar, the method type was printing
as unc instead of func.
Updates #15673
Change-Id: I0c2c189b99bdd4caeb393693be7520b8e3f342bf
Reviewed-on: https://go-review.googlesource.com/23103
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This reverts commit 7af2ce3f15.
The commit had a wrong prefix in the description line, probably
misreconginized something. As a result it broke golang.org/x/tools/godoc
and golang.org/x/tools/cmd/godoc like the following:
--- FAIL: TestCLI (10.90s)
--- FAIL: TestWeb (13.74s)
FAIL
FAIL golang.org/x/tools/cmd/godoc 36.428s
--- FAIL: TestCommandLine (0.00s)
FAIL
FAIL golang.org/x/tools/godoc 0.068s
Change-Id: I362a862a4ded8592dec7488a28e7a256adee148f
Reviewed-on: https://go-review.googlesource.com/23076
Run-TryBot: Mikio Hara <mikioh.mikioh@gmail.com>
Reviewed-by: Andrew Gerrand <adg@golang.org>
The httptrace.ConnectStart and ConnectDone hooks are just about the
post-DNS connection to the host. We were accidentally also firing on
the UDP dials to DNS. Exclude those for now. We can add them back
later as separate hooks if desired. (but they'd only work for pure Go
DNS)
This wasn't noticed earlier because I was developing on a Mac at the
time, which always uses cgo for DNS. When running other tests on
Linux, I started seeing UDP dials.
Updates #12580
Change-Id: I2b2403f2483e227308fe008019f1100f6300250b
Reviewed-on: https://go-review.googlesource.com/23069
Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Return an error message instead of eating memory and eventually
triggering a stack overflow.
Fixes#15618
Change-Id: I3dcf1d669104690a17847a20fbfeb6d7e39e8751
Reviewed-on: https://go-review.googlesource.com/23091
Reviewed-by: Rob Pike <r@golang.org>
Re-apply @adg's CL https://golang.org/cl/7129048 that was
previously disabled in https://golang.org/cl/7235052 because
it broke `godoc net/http` for go1.1.
Currently `godoc net/http` seems to work fine with this CL.
Fixes#3428.
Change-Id: I7df06df02fd62dededac6ec60bea62561be59cf1
Reviewed-on: https://go-review.googlesource.com/23013
Run-TryBot: Andrew Gerrand <adg@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
Trace viewer cannot handle traces larger than 256MB (limit on js string size):
https://github.com/catapult-project/catapult/issues/627
And even that is problematic (chrome hangs and crashes).
Split large traces into 100MB parts. Somewhat clumsy, but I don't see any other
solution (other than rewriting trace viewer). At least it works reliably now.
Fixes#15482
Change-Id: I993b5f43d22072c6f5bd041ab5888ce176f272b2
Reviewed-on: https://go-review.googlesource.com/22731
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Step 5 was deleted in f3575a9 however the numbering of the other
steps wasn't adjusted accordingly.
While we're here: clean up the whitespace, add curly braces where
appropriate and delete semicolons.
Change-Id: I4e77b2d3ee8460abe4bfb993674f83e35be8ff17
Reviewed-on: https://go-review.googlesource.com/23066
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
In future releases of OpenBSD, the sigreturn syscall will no longer
exist. As such, stop using sigreturn on openbsd/386 and just return
from the signal trampoline (as we already do for openbsd/amd64 and
openbsd/arm).
Change-Id: Ic4de1795bbfbfb062a685832aea0d597988c6985
Reviewed-on: https://go-review.googlesource.com/23024
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Minor cleanup. Each of these cases appears both during export and
import when running all.bash and thus is tested by all.bash.
Change-Id: Iaa4a5a5b163cefe33e43d08d396e02a02e5c22a5
Reviewed-on: https://go-review.googlesource.com/23060
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This is addressing feedback given on golang.org/cl/23052;
we do it in a separate CL to separate the functional from
the rename change.
ONAME was not used in the export data, but it's the natural node op
where we used OPACK instead. Renamed.
Furthermore, OPACK and ONONAME nodes are replaced by the type checker
with ONAME nodes, so OPACK nodes cannot occur when exporting type-checked
code. Removed a special-case for OPACK nodes since they don't appear.
Change-Id: I78b01a1badbf60e9283eaadeca2578a65d28cbd2
Reviewed-on: https://go-review.googlesource.com/23053
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
The pprof tools properly cleans up all files it creates, but forgets
to clean up the temporary directory itself. This CL fixes that.
Fixes#13863
Change-Id: I1151c36cdad5ace7cc97e7e04001cf0149ef0f63
Reviewed-on: https://go-review.googlesource.com/23019
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Include integration test. Confirmed that without the fix, the test case
TestDeleteReadOnly fails.
This permits to revert "cmd/go: reset read-only flag during TestIssue10952"
This reverts commit 3b7841b3af.
Fixes#9606
Change-Id: Ib55c151a8cf1a1da02ab18c34a9b58f615c34254
Reviewed-on: https://go-review.googlesource.com/18235
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The //extern comments are incorrect and cause undefined symbol
errorswhen building cgo code with -compiler=gccgo. The code is already
designed to use weak references, and that support relies on the cgo
check functions being treated as local functions.
Change-Id: Ib38a640cc4ce6eba74cfbf41ba7147ec88769ec0
Reviewed-on: https://go-review.googlesource.com/23014
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Summary: Go's HTTP/1.x server closes the request body once writes are
flushed. Go's HTTP/2 server supports concurrent read & write.
Added a TODO to make the HTTP/1.x server also support concurrent
read+write. But for now, document it.
Updates #15527
Change-Id: I81f7354923d37bfc1632629679c75c06a62bb584
Reviewed-on: https://go-review.googlesource.com/23011
Reviewed-by: Andrew Gerrand <adg@golang.org>
This change reorganizes test cases for surveying network interfaces and
address prefixes to make sure which part of the functionality is broken.
Updates #7849.
Change-Id: If6918075802eef69a7f1ee040010b3c46f4f4b97
Reviewed-on: https://go-review.googlesource.com/22990
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
The importer uses a global (shared) package map across multiple imports
to determine if a package was imported before. That package map is usually
indexed by package (import) path ('id' in this code). However, the binary
importer was using the incoming (possibly unclean) path.
Fixes#15517.
Change-Id: I0c32a708dfccf345e0353fbda20ad882121e437c
Reviewed-on: https://go-review.googlesource.com/23012
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
The -systemdll and -xsys flags generate broken code in some situations
(see issue for details). Fix all that.
This CL only fixes bugs in existing code, but I have more changes comming:
golang.org/x/sys/windows is not the only package that uses mksyscall_windows.go.
golang.org/x/exp/shiny and github.com/derekparker/delve do too. I also have
few personal packages that use mksyscall_windows.go. None of those packages
are aware of new -xsys flag. I would like to change mksyscall_windows.go, so
external packages do not need to use -xsys flag. I would love to get rid of
-xsys flag altogether, but I don't see how it is possible. So I will, probably,
replace -xsys with a flag that means opposite to -xsys, and use new flag
everywhere in standard libraries. Flag name suggestions are welcome.
-systemdll flag makes users code more "secure". I would like to make -systemdll
behaviour a default for all mksyscall_windows.go users. We use that already in
standard library. If we think "secure" is important, we should encourage it in
all users code. If mksyscall_windows.go user insist on using old code, provide
-use_old_loaddll (need good name here) flag for that. So -systemdll flag will
be replaced with -use_old_loaddll.
Fixes#15167
Change-Id: I516369507867358ba1b66aabe00a17a7b477016e
Reviewed-on: https://go-review.googlesource.com/21645
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Noticed and fix by Alex Brainman.
Tested in https://golang.org/cl/23005 (which makes all compiler
warnings fatal during development)
Fixes#15623
Change-Id: Ic19999fce8bb8640d963965cc328574efadd7855
Reviewed-on: https://go-review.googlesource.com/23010
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Instead of exporting the C function mygetgrouplist as a global symbol to
conflict with other symbols of the same name, use trivial Go code and a
static C function.
Change-Id: I98dd667814d0a0ed8f7b1d4cfc6483d5a6965b26
Reviewed-on: https://go-review.googlesource.com/23008
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Although calls to getaddrinfo can't be portably interrupted,
we still benefit from more granular resource management by
pushing the context downwards.
Fixes#15321
Change-Id: I5506195fc6493080410e3d46aaa3fe02018a24fe
Reviewed-on: https://go-review.googlesource.com/22961
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
We fixed the implementation of the pread syscall in
the Plan 9 kernel, so calling pread doesn't update the
channel offset when reading a file.
Fixes#11194.
Change-Id: Ie4019e445542a73479728af861a50bb54caea3f6
Reviewed-on: https://go-review.googlesource.com/22245
Reviewed-by: Minux Ma <minux@golang.org>
Run-TryBot: David du Colombier <0intro@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
In the Plan 9 kernel, there used to be a bug in the implementation of
the pread syscall, where the channel offset was erroneously updated after
calling pread on a file.
This test verifies that ReadAt is behaving as expected.
Fixes#14534.
Change-Id: Ifc9fd40a1f94879ee7eb09b2ffc369aa2bec2926
Reviewed-on: https://go-review.googlesource.com/22244
Run-TryBot: David du Colombier <0intro@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This change makes encoding and decoding support integer types in map
keys, converting to/from JSON string keys.
JSON object keys are still sorted lexically, even though the keys may be
integer strings.
For backwards-compatibility, the existing Text(Un)Marshaler support for
map keys (added in CL 20356) does not take precedence over the default
encoding for string types. There is no such concern for integer types,
so integer map key encoding is only used as a fallback if the map key
type is not a Text(Un)Marshaler.
Fixes#12529.
Change-Id: I7e68c34f9cd19704b1d233a9862da15fabf0908a
Reviewed-on: https://go-review.googlesource.com/22060
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
The decryption example for AES-GCM was not executed, hiding the fact
that the provided ciphertext could not be authenticated.
This commit adds the required output comment, replaces the ciphertext
with a working example, and removes an unnecessary string conversion
along the way.
Change-Id: Ie6729ca76cf4a56c48b33fb3b39872105faa604b
Reviewed-on: https://go-review.googlesource.com/22953
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The time package has never depended on the io package until
a recent change during Go 1.7 to use the io.Seek* constants.
The go/build dependency check didn't catch this because "time" was
allowed to depend on meta package group "L0", which included "io".
Adding the "io" package broke one of Dmitry's tools. The tool is
fixable, but it's also not necessary for us to depend on "io" at all
for some constants. Mirror the constants instead, and change
deps_test.go to prevent an io dependency in the future.
Change-Id: I74325228565279a74fa4a2f419643f5710e3e09f
Reviewed-on: https://go-review.googlesource.com/22960
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
After upgrading builder device (android/arm) to android 5.0.2,
the test started failing. Running 'ln -s' from shell fails with
permission error.
Change-Id: I5b9e312806d58532b41ea3560ff079dabbc6424e
Reviewed-on: https://go-review.googlesource.com/22962
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Address two documentation issues:
1) Document that the GZIP and ZLIB footer is only verified when the
reader has been fully consumed.
2) The zlib reader is guaranteed to not read past the EOF if the
input io.Reader is also a io.ByteReader. This functionality was
documented in the flate and gzip packages but not on zlib.
Fixes#14867
Change-Id: I43d46b93e38f98a04901dc7d4f18ed2f9e09f6fb
Reviewed-on: https://go-review.googlesource.com/21218
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
In regalloc, a sparse map is preallocated for later use by
spill-in-loop sinking. However, variables (spills) are added
during register allocation before spill sinking, and a map
query involving any of these new variables will index out of
bounds in the map.
To fix:
1) fix the queries to use s.orig[v.ID].ID instead, to ensure
proper indexing. Note that s.orig will be nil for values
that are not eligible for spilling (like memory and flags).
2) add a test.
Fixes#15585.
Change-Id: I8f2caa93b132a0f2a9161d2178320d5550583075
Reviewed-on: https://go-review.googlesource.com/22911
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This flag is experimental and the semantics may change
even after Go 1.7 is released. There are no changes to code
not using the flag.
The first part is for reading by future compiles.
The second part is for reading by the final link step.
Splitting the file this way allows distributed build systems
to ship the compile-input part only to compile steps and
the linker-input part only to linker steps.
The first part is basically just the export data,
and the second part is basically everything else.
The overall files still have the same broad structure,
so that existing tools will work with both halves.
It's just that various pieces are empty in the two halves.
This also copies the two bits of data the linker needed from
export data into the object header proper, so that the linker
doesn't need any export data at all. That eliminates a TODO
that was left for switching to the binary export data.
(Now the linker doesn't need to know about the switch.)
The default is still to write out a combined output file.
Nothing changes unless you pass -linkobj to the compiler.
There is no support in the go command for -linkobj,
since the go command doesn't copy objects around.
The expectation is that other build systems (like bazel, say)
might take advantage of this.
The header adjustment and the option for the split output
was intended as part of the zip archives, but the zip archives
have been cut from Go 1.7. Doing this to the current archives
both unblocks one step in the switch to binary export data
and enables alternate build systems to experiment with the
new flag using the Go 1.7 release.
Change-Id: I8b6eab25b8a22b0a266ba0ac6d31e594f3d117f3
Reviewed-on: https://go-review.googlesource.com/22500
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
The test sometimes fails on builders.
The test uses sleeps to establish the necessary goroutine
execution order. If sleeps undersleep/oversleep
the race is still reported, but it can be reported when the
main test goroutine returns. In such case test driver
can't match the race with the test and reports failure.
Wait for both test goroutines to ensure that the race
is reported in the test scope.
Fixes#15579
Change-Id: I0b9bec0ebfb0c127d83eb5325a7fe19ef9545050
Reviewed-on: https://go-review.googlesource.com/22951
Run-TryBot: Dmitry Vyukov <dvyukov@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>