This makes it possible to use URLs with gob.
Ideally we'd also implement TextMarshaler and TextUnmarshaler,
but that would change the JSON encoding of a URL from something like:
{"Scheme":"https","Opaque":"","User":null,"Host":"www.google.com","Path":"/x","RawPath":"","ForceQuery":false,"RawQuery":"y=z","Fragment":""}
to something like:
"https://www.google.com/x?y=z"
That'd be nice, but it would break code expecting the old form.
Fixes#10964.
Change-Id: I83f06bc2bedd2ba8a5d8eef03ea0056d045c258f
Reviewed-on: https://go-review.googlesource.com/31467
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Now that we have the Clone method on tls.Config, net/http doesn't need
any custom functions to do that any more.
Change-Id: Ib60707d37f1a7f9a7d7723045f83e59eceffd026
Reviewed-on: https://go-review.googlesource.com/31595
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
According to the GNU manual, the format is:
<<<
GNU.sparse.size=size
GNU.sparse.numblocks=numblocks
repeat numblocks times
GNU.sparse.offset=offset
GNU.sparse.numbytes=numbytes
end repeat
>>>
The logic in parsePAX converts the repeating sequence of
(offset, numbytes) pairs (which is not PAX compliant) into a single
comma-delimited list of numbers (which is now PAX compliant).
Thus, we validate the following:
* The (offset, numbytes) headers must come in the correct order.
* The ',' delimiter cannot appear in the value.
We do not validate that the value is a parsible decimal since that
will be determined later.
Change-Id: I8d6681021734eb997898227ae8603efb1e17c0c8
Reviewed-on: https://go-review.googlesource.com/31439
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Previously, the check to make sure we only considered constant cases
for duplicates was skipping past integer ranges, because those use
n.List instead of n.Left. Thanks to Emmanuel Odeke for investigating
and helping to identify the root cause.
Fixes#17517.
Change-Id: I46fcda8ed9c346ff3a9647d50b83f1555587b740
Reviewed-on: https://go-review.googlesource.com/31716
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Updates http2 to x/net/http2 git rev 40a0a18 for:
http2: fix Server race with concurrent Read/Close
http2: make Server reuse 64k request body buffer between requests
http2: never Read from Request.Body in Transport to determine ContentLength
Fixes#17480
Updates #17071
Change-Id: If142925764a2e148f95957f559637cfc1785ad21
Reviewed-on: https://go-review.googlesource.com/31737
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The old wording over-promised.
Fixes#16957
Change-Id: Iaac04de0d24eb17a0db66beeeab9de70d0f6d391
Reviewed-on: https://go-review.googlesource.com/31735
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Tom Bergan <tombergan@google.com>
This partially reverts commit 01bf5cc219.
For unknown reasons, this CL was causing an internal test to allocate
1.2GB when it used to allocate less than 300MB.
Change-Id: I41d767781e0ae9e43bf670e2a186ee074821eca4
Reviewed-on: https://go-review.googlesource.com/31674
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
With the old code rewriting refs would rewrite the inner arguments
rather than the outer ones, leaving a reference to C.val in the outer
arguments.
Change-Id: I9b91cb4179eccd08500d14c6591bb15acf8673eb
Reviewed-on: https://go-review.googlesource.com/31672
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This commit fixes two bizarrely related bugs:
1. The signatures for the call* functions were wrong, indicating that
they had only two pointer arguments instead of three. We didn't notice
because the call* functions are defined by a macro expansion, which go
vet doesn't see.
2. deferArgs on a defer object with a zero-sized frame returned a
pointer just past the end of the allocated object, which is illegal in
Go (and can cause the "sweep increased allocation count" crashes).
In a fascinating twist, these two bugs canceled each other out, which
is why I'm fixing them together. The pointer returned by deferArgs is
used in only two ways: as an argument to memmove and as an argument to
reflectcall. memmove is NOSPLIT, so the argument was unobservable.
reflectcall immediately tail calls one of the call* functions, which
are not NOSPLIT, but the deferArgs pointer just happened to be the
third argument that was accidentally marked as a scalar. Hence, when
the garbage collector scanned the stack, it didn't see the bad
pointer as a pointer.
I believe this was all ultimately benign. In principle, stack growth
during the reflectcall could fail to update the args pointer, but it
never points to the stack, so it never needs to be updated. Also in
principle, the garbage collector could fail to mark the args object
because of the incorrect call* signatures, but in all calls to
reflectcall (including the ones spelled "call" in the reflect package)
the args object is kept live by the calling stack.
Change-Id: Ic932c79d5f4382be23118fdd9dba9688e9169e28
Reviewed-on: https://go-review.googlesource.com/31654
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
trace's reader *g is going to cause write barriers in unfortunate
places, so replace it with a guintptr.
Change-Id: Ie8fb13bb89a78238f9d2a77ec77da703e96df8af
Reviewed-on: https://go-review.googlesource.com/31469
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Rick Hudson <rlh@golang.org>
There was some ambiguity over which argument was referred to when
a conversion error was returned. Now refer to the argument by
either explicit ordinal position or name if present.
Fixes#15676
Change-Id: Id933196b7e648baa664f4121fa3fb1b07b3c4880
Reviewed-on: https://go-review.googlesource.com/31262
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The m5 and m6 fields were the wrong way round.
Fixes#17444.
Change-Id: I10297064f2cd09d037eac581c96a011358f70aae
Reviewed-on: https://go-review.googlesource.com/31130
Run-TryBot: Michael Munday <munday@ca.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Adapt old test for prove's bounds check elimination.
Added missing rule to generic rules that lead to differences
between 32 and 64 bit platforms on sliceopt test.
Added debugging to prove.go that was helpful-to-necessary to
discover that missing rule.
Lowered debugging level on prove.go from 3 to 1; no idea
why it was previously 3.
Change-Id: I09de206aeb2fced9f2796efe2bfd4a59927eda0c
Reviewed-on: https://go-review.googlesource.com/23290
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
This exposes HuffmanOnly in zlib and gzip packages, which is currently
unavailable.
Change-Id: If5d103bbc8b5fce2f5d740fd103a235c5d1ed7cd
Reviewed-on: https://go-review.googlesource.com/31186
Reviewed-by: Nigel Tao <nigeltao@golang.org>
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This makes grayModel and gray16Model in color.go use the exact same
formula as RGBToYCbCr in ycbcr.go. They were the same formula in theory,
but in practice the color.go versions used a divide by 1000 and the
ycbcr.go versions used a (presumably faster) shift by 16.
This implies the nice property that converting an image.RGBA to an
image.YCbCr and then taking only the Y channel is equivalent to
converting an image.RGBA directly to an image.Gray.
The difference between the two formulae is non-zero, but small:
https://play.golang.org/p/qG7oe-eqHI
Updates #16251
Change-Id: I288ecb957fd6eceb9626410bd1a8084d2e4f8198
Reviewed-on: https://go-review.googlesource.com/31538
Reviewed-by: Rob Pike <r@golang.org>
For very large input files, use of GOSSAFUNC to obtain a dump
after compilation steps can lead to both unwieldy large output
files and unwieldy larger processes (because the output is
buffered in a string). This flag
-d=ssa/<phase>/dump:<function name>
provides finer control of what is dumped, into a smaller
file, and with less memory overhead in the running compiler.
The special phase name "build" is added to allow printing
of the just-built ssa before any transformations are applied.
This was helpful in making sense of the gogo/protobuf
problems.
The output format was tweaked to remove gratuitous spaces,
and a crude -d=ssa/help help text was added.
Change-Id: If7516e22203420eb6ed3614f7cee44cb9260f43e
Reviewed-on: https://go-review.googlesource.com/23044
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Fixes#16076
Change-Id: I91fa87b642592ee4604537dd8c3197cd61ec8b31
Reviewed-on: https://go-review.googlesource.com/31516
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This change updates the vendored copy of x/crypto/poly1305, specifically
to include the following changes:
3ded668 poly1305: enable assembly for ARM in Go 1.6.
dec8741 poly1305: fix stack handling in sum_arm.s
Fixes#17499.
Change-Id: I8f152da9599bd15bb976f630b0ef602be05143d3
Reviewed-on: https://go-review.googlesource.com/31592
Run-TryBot: Adam Langley <agl@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This issue has been fixed in CL 31390.
Fixes#9554.
Change-Id: Ib8ff4cb1ffcb7cdbf117510b98b4a7e13e4efd2b
Reviewed-on: https://go-review.googlesource.com/31520
TryBot-Result: Gobot Gobot <gobot@golang.org>
Run-TryBot: David du Colombier <0intro@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Missing the DB mutex unlock on an early return after checking
if the context has expired.
Fixes#17518
Change-Id: I247cafcef62623d813f534a941f3d5a3744f0738
Reviewed-on: https://go-review.googlesource.com/31494
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Issues fixed:
* Could not handle quantity of seconds greater than 1<<31 on
32bit machines since strconv.ParseInt did not treat integers as 64b.
* Did not handle negative timestamps properly if nanoseconds were used.
Note that "-123.456" should result in a call to time.Unix(-123, -456000000).
* Incorrectly allowed a '-' right after the '.' (e.g., -123.-456)
* Did not detect invalid input after the truncation point (e.g., 123.123456789badbadbad).
Note that negative timestamps are allowed by PAX, but are not guaranteed
to be portable. See the relevant specification:
<<<
If pax encounters a file with a negative timestamp in copy or write mode,
it can reject the file, substitute a non-negative timestamp, or generate
a non-portable timestamp with a leading '-'.
>>>
Since the previous behavior already partially supported negative timestamps,
we are bound by Go's compatibility rules to keep support for them.
However, we should at least make sure we handle them properly.
Change-Id: I5686997708bfb59110ea7981175427290be737d1
Reviewed-on: https://go-review.googlesource.com/31441
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This is a more robust method for obtaining the availability of vx.
Since this variable may be checked frequently I've also now
padded it so that it will be in its own cache line.
I've kept the other check (in hash/crc32) the same for now until
I can figure out the best way to update it.
Updates #15403.
Change-Id: I74eed651afc6f6a9c5fa3b88fa6a2b0c9ecf5875
Reviewed-on: https://go-review.googlesource.com/31149
Reviewed-by: Austin Clements <austin@google.com>
oneNewExtraM creates a spare M and G for use with cgo callbacks. The G
doesn't run right away, but goes directly into syscall status. For the
garbage collector, it's marked as "scan valid" and not on the rescan
list, but I forgot to also mark it as "scan done". As a result,
gcMarkRootCheck thinks that the goroutine hasn't been scanned and
panics.
This only affects GODEBUG=gccheckmark=1 mode, since we otherwise skip
the gcMarkRootCheck.
Fixes#17473.
Change-Id: I94f5671c42eb44bd5ea7dc68fbf85f0c19e2e52c
Reviewed-on: https://go-review.googlesource.com/31139
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
Updating the heap profile stats is one of the most expensive parts of
mark termination other than stack rescanning, but there's really no
need to do this with the world stopped. Move it to right after we've
started the world back up. This creates a *very* small window where
allocations from the next cycle can slip into the profile, but the
exact point where mark termination happens is so non-deterministic
already that a slight reordering here is unimportant.
Change-Id: I2f76f22c70329923ad6a594a2c26869f0736d34e
Reviewed-on: https://go-review.googlesource.com/31363
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
The only reason these flushes are still necessary at all is that
gcmarknewobject doesn't flush its gcWork stats like it's supposed to.
By changing gcmarknewobject to follow the standard protocol, the
flushes become completely unnecessary because mark 2 ensures caches
are flushed (and stay flushed) before we ever enter mark termination.
In the garbage benchmark, this takes roughly 50 µs, which is
surprisingly long for doing nothing. We still double-check after
draining that they are in fact empty.
Change-Id: Ia1c7cf98a53f72baa513792eb33eca6a0b4a7128
Reviewed-on: https://go-review.googlesource.com/31134
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
The pointer checking code needs to know the exact type of the parameter
expected by the C function, so that it can use a type assertion to
convert the empty interface returned by cgoCheckPointer to the correct
type. Previously this was done by using a type conversion, but that
meant that the code accepted arguments that were convertible to the
parameter type, rather than arguments that were assignable as in a
normal function call. In other words, some code that should not have
passed type checking was accepted.
This CL changes cgo to always use a function literal for pointer
checking. Now the argument is passed to the function literal, which has
the correct argument type, so type checking is performed just as for a
function call as it should be.
Since we now always use a function literal, simplify the checking code
to run as a statement by itself. It now no longer needs to return a
value, and we no longer need a type assertion.
This does have the cost of introducing another function call into any
call to a C function that requires pointer checking, but the cost of the
additional call should be minimal compared to the cost of pointer
checking.
Fixes#16591.
Change-Id: I220165564cf69db9fd5f746532d7f977a5b2c989
Reviewed-on: https://go-review.googlesource.com/31233
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Just happened to notice that these names (funcAlign and friends) are
never referenced outside their package, so no need to export them.
Change-Id: I4bbdaa4b0ef330c3c3ef50a2ca39593977a83545
Reviewed-on: https://go-review.googlesource.com/31496
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
mkbuiltin.go now generates builtin.go using go/ast instead of running
the compiler, so we don't need the -A flag anymore.
Passes toolstash -cmp.
Change-Id: Ifa70f4f3c9feae10c723cbec81a0a47c39610090
Reviewed-on: https://go-review.googlesource.com/31497
Reviewed-by: Robert Griesemer <gri@golang.org>
Generating binary export data requires a working Go compiler. Even
trickier to change the export data format itself requires a careful
bootstrapping procedure.
Instead, simply generate normal Go code that lets us directly
construct the builtin runtime declarations.
Passes toolstash -cmp.
Fixes#17508.
Change-Id: I4f6078a3c7507ba40072580695d57c87a5604baf
Reviewed-on: https://go-review.googlesource.com/31493
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Relevant PAX specification:
<<<
If the <value> field is zero length, it shall delete any header
block field, previously entered extended header value, or
global extended header value of the same name.
>>>
We don't delete global extender headers since the Reader doesn't
even support global headers (which the specification admits was
a controversial feature).
Change-Id: I2125a5c907b23a3dc439507ca90fa5dc47d474a9
Reviewed-on: https://go-review.googlesource.com/31440
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
