Brad Fitzpatrick [Thu, 3 Nov 2016 20:53:05 +0000 (20:53 +0000)]
net/http: tweak the new Client 307/308 redirect behavior a bit
This CL tweaks the new (unreleased) 307/308 support added in
https://golang.org/cl/29852 for #10767.
Change 1: if a 307/308 response doesn't have a Location header in its
response (as observed in the wild in #17773), just do what we used to
do in Go 1.7 and earlier, and don't try to follow that redirect.
Change 2: don't follow a 307/308 if we sent a body on the first
request and the caller's Request.GetBody func is nil so we can't
"rewind" the body to send it again.
Vladimir Stefanovic [Tue, 18 Oct 2016 21:50:25 +0000 (23:50 +0200)]
runtime/internal/sys: add arch defs for GOARCH=mips{,le}
Change-Id: I6288f1fca1ae4c64b3907af700811ee842053020
Reviewed-on: https://go-review.googlesource.com/31472 Reviewed-by: Ian Lance Taylor <iant@golang.org>
Vladimir Stefanovic [Tue, 18 Oct 2016 21:50:29 +0000 (23:50 +0200)]
cmd/internal/sys: add support for GOARCH=mips{,le}
Change-Id: I8c6b8839c68818430510702719dca15b8d748fb8
Reviewed-on: https://go-review.googlesource.com/31473 Reviewed-by: Ian Lance Taylor <iant@golang.org>
Vladimir Stefanovic [Wed, 31 Aug 2016 14:58:56 +0000 (16:58 +0200)]
runtime: 8-byte align the heap_live field for atomic access
mheap_.heap_live is an atomically accessed uint64. It is currently not 8-byte
aligned on 32-bit platforms, which has been okay because it's only accessed via
Xadd64, which doesn't require alignment on 386 or ARM32. However, Xadd64 on
MIPS32 does require 8-byte alignment.
Add a padding field to force 8-byte alignment of heap_live and prevent an
alignment check crash on MIPS32.
Change-Id: I7eddf7883aec7a0a7e0525af5d58ed4338a401d0
Reviewed-on: https://go-review.googlesource.com/31635
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Brad Fitzpatrick [Sat, 22 Oct 2016 14:25:21 +0000 (07:25 -0700)]
testing: add T.Context method
From the doc comment:
Context returns the context for the current test or benchmark.
The context is cancelled when the test or benchmark finishes.
A goroutine started during a test or benchmark can wait for the
context's Done channel to become readable as a signal that the
test or benchmark is over, so that the goroutine can exit.
Fixes #16221.
Fixes #17552.
Change-Id: I657df946be2c90048cc74615436c77c7d9d1226c
Reviewed-on: https://go-review.googlesource.com/31724 Reviewed-by: Rob Pike <r@golang.org>
Russ Cox [Thu, 3 Nov 2016 01:40:47 +0000 (21:40 -0400)]
testing: mark tests and benchmarks failed if a race occurs during execution
Before:
$ go test -race -v -run TestRace
=== RUN TestRace
==================
WARNING: DATA RACE
Write at 0x00c420076420 by goroutine 7:
_/Users/rsc/go/src/cmd/go/testdata/src/testrace.TestRace.func1()
/Users/rsc/go/src/cmd/go/testdata/src/testrace/race_test.go:10 +0x3b
Previous write at 0x00c420076420 by goroutine 6:
_/Users/rsc/go/src/cmd/go/testdata/src/testrace.TestRace()
/Users/rsc/go/src/cmd/go/testdata/src/testrace/race_test.go:13 +0xcc
testing.tRunner()
/Users/rsc/go/src/testing/testing.go:656 +0x104
$ go test -race -v -run TestRace
=== RUN TestRace
==================
WARNING: DATA RACE
Write at 0x00c420076420 by goroutine 7:
_/Users/rsc/go/src/cmd/go/testdata/src/testrace.TestRace.func1()
/Users/rsc/go/src/cmd/go/testdata/src/testrace/race_test.go:10 +0x3b
Previous write at 0x00c420076420 by goroutine 6:
_/Users/rsc/go/src/cmd/go/testdata/src/testrace.TestRace()
/Users/rsc/go/src/cmd/go/testdata/src/testrace/race_test.go:13 +0xcc
testing.tRunner()
/Users/rsc/go/src/testing/testing.go:656 +0x104
Dan Harrington [Tue, 25 Oct 2016 19:51:39 +0000 (12:51 -0700)]
net/http: support If-Match in ServeContent
- Added support for If-Match and If-Unmodified-Since.
- Precondition checks now more strictly follow RFC 7232 section 6, which
affects precedence when multiple condition headers are present.
- When serving a 304, Last-Modified header is now removed when no ETag is
present (as suggested by RFC 7232 section 4.1).
- If-None-Match supports multiple ETags.
- ETag comparison now correctly handles weak ETags.
David Chase [Thu, 3 Nov 2016 15:50:14 +0000 (11:50 -0400)]
runtime/cgo: correct type declaration for Windows
Newer versions of gcc notice a type mismatch and complain.
Fix code to match documented signature in MSDN.
Trybots say this still compiles with the older (5.1) version
of gcc.
Fixes #17771.
Change-Id: Ib3fe6f71b40751e1146249e31232da5ac69b9e00
Reviewed-on: https://go-review.googlesource.com/32646
Run-TryBot: David Chase <drchase@google.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Russ Cox [Wed, 2 Nov 2016 23:41:01 +0000 (19:41 -0400)]
cmd/cgo: add #line directives to avoid printing bogus references to Go source files
A bit contrived to come up with an example, but it happened in #15836, somehow.
$ cat /tmp/x.go
package main
/*
#include <stddef.h>
int foo(void);
int foo(void) {
return 2;
}
#define int asdf
*/
import "C"
func main() {
println(C.foo())
}
$ go run /tmp/x.go
# command-line-arguments
cgo-builtin-prolog:9:31: error: unknown type name 'asdf' <<<<<
_GoString_ GoStringN(char *p, int l);
^
/tmp/x.go:12:13: note: expanded from macro 'int'
#define int asdf
^
cgo-builtin-prolog:10:28: error: unknown type name 'asdf' <<<<<
_GoBytes_ GoBytes(void *p, int n);
^
/tmp/x.go:12:13: note: expanded from macro 'int'
#define int asdf
^
2 errors generated.
The two marked lines used to refer incorrectly to /tmp/x.go.
Fixes #15836.
Change-Id: I08ef60a53cfd148112fceb651eaf7b75d94a7a8d
Reviewed-on: https://go-review.googlesource.com/32613
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Russ Cox [Thu, 3 Nov 2016 00:18:47 +0000 (20:18 -0400)]
cmd/cover: change covered block for switch/select case to exclude expression
Consider a switch like
switch x {
case foo:
f()
g()
}
Before, the coverage annotation for the block calling f and g included
in its position span the text for 'case foo:'. This looks nice in the coverage
report, but it breaks the invariant that coverage blocks are disjoint if
you have a more complex expression like:
switch x {
case func() int { return foo }():
f()
g()
}
Then the coverage analysis wants to annotate the func literal body,
which overlaps with the case body, because the case body is considered
to begin at the case token.
Change the annotation for a case body to start just after the colon of
the case clause, avoiding any potential conflict with complex case
expressions. Could have started at the colon instead, but it seemed
less weird to start just after it.
Russ Cox [Thu, 3 Nov 2016 01:52:27 +0000 (21:52 -0400)]
cmd/go: fix TestGoGetDashTIssue8181
The test case was importing golang.org/x/build/cmd/cl,
which is a package main and cannot be imported.
The test case (stored in a separate repo) has been changed
to import golang.org/x/build/gerrit. Update the test accordingly.
Fixes #17702.
Change-Id: I80e150092111b5a04bb00c992b32edb271edb086
Reviewed-on: https://go-review.googlesource.com/32616
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Quentin Smith [Wed, 2 Nov 2016 20:18:22 +0000 (16:18 -0400)]
runtime/testdata/testprog: increase GCFairness2 timeout to 1s
OpenBSD's scheduler causes preemption to take 20+ms, so 30ms is not
enough time for 3 goroutines to run. This change continues to sleep for
30ms, but if it finds that the 3 goroutines have not run, it sleeps for
an additional 1s before declaring failure.
Updates #17712
Change-Id: I3e886e40d05192b7cb71b4f242af195836ef62a8
Reviewed-on: https://go-review.googlesource.com/32634 Reviewed-by: Rick Hudson <rlh@golang.org>
Run-TryBot: Quentin Smith <quentin@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Mohit Agarwal [Thu, 3 Nov 2016 14:23:27 +0000 (19:53 +0530)]
cmd/go: run mkalldocs.sh
Follow-up to CL 32114
Change-Id: I75247ed9c1c0a0e8a278eb75a60d4c5bee355409
Reviewed-on: https://go-review.googlesource.com/32690 Reviewed-by: Ian Lance Taylor <iant@golang.org>
David Crawshaw [Fri, 23 Sep 2016 22:39:31 +0000 (08:39 +1000)]
cmd/compile: write type symbols referenced in ptabs
The exported symbol for a plugin can be the only reference to a
type in a program. In particular, "var F func()" will have
the type *func(), which is uncommon.
David du Colombier [Thu, 3 Nov 2016 10:50:45 +0000 (11:50 +0100)]
net: disallow dialing and listening on port > 65535 on Plan 9
Since Dial(":80") was implemented on Plan 9 (CL 32593),
TestProtocolDialError is failing because dialing a port
superior to 65535 is supported on Plan 9.
This change disallows dialing and listening on ports
superior to 65535.
TestAssembly takes 20s on my machine,
which is too slow for normal operation.
Marking as -short has its dangers (#17472),
but hopefully we'll soon have a builder for that.
All the SSA tests are hermetic and not time sensitive
and can thus be run in parallel.
Reduces the cmd/compile/internal/gc test time during
all.bash on my laptop from 42s to 7s.
Keith Randall [Tue, 1 Nov 2016 22:28:10 +0000 (15:28 -0700)]
cmd/compile: compute faulting args before writing args to stack
when compiling f(a, b, c), we do something like:
*(SP+0) = eval(a)
*(SP+8) = eval(b)
*(SP+16) = eval(c)
call f
If one of those evaluations is later determined to unconditionally panic
(say eval(b) in this example), then the call is deadcode eliminated. But
any previous argument write (*(SP+0)=... here) is still around. Becuase
we only compute the size of the outarg area for calls which are still
around at the end of optimization, the space needed for *(SP+0)=v is not
accounted for and thus the outarg area may be too small.
The fix is to make sure that we evaluate any potentially panicing
operation before we write any of the args to the stack. It turns out
that fix is pretty easy, as we already have such a mechanism available
for function args. We just need to extend it to possibly panicing args
as well.
The resulting code (if b and c can panic, but a can't) is:
tmpb = eval(b)
*(SP+16) = eval(c)
*(SP+0) = eval(a)
*(SP+8) = tmpb
call f
This change tickled a bug in how we find the arguments for intrinsic
calls, so that latent bug is fixed up as well.
Keith Randall [Fri, 28 Oct 2016 18:37:45 +0000 (11:37 -0700)]
cmd/compile: do more type conversion inline
The code to do the conversion is smaller than the
call to the runtime.
The 1-result asserts need to call panic if they fail, but that
code is out of line.
The only conversions left in the runtime are those which
might allocate and those which might need to generate an itab.
Given the following types:
type E interface{}
type I interface { foo() }
type I2 iterface { foo(); bar() }
type Big [10]int
func (b Big) foo() { ... }
This CL inlines the following conversions:
was assertE2T
var e E = ...
b := i.(Big)
was assertE2T2
var e E = ...
b, ok := i.(Big)
was assertI2T
var i I = ...
b := i.(Big)
was assertI2T2
var i I = ...
b, ok := i.(Big)
was assertI2E
var i I = ...
e := i.(E)
was assertI2E2
var i I = ...
e, ok := i.(E)
These are the remaining runtime calls:
convT2E:
var b Big = ...
var e E = b
convT2I:
var b Big = ...
var i I = b
convI2I:
var i2 I2 = ...
var i I = i2
assertE2I:
var e E = ...
i := e.(I)
assertE2I2:
var e E = ...
i, ok := e.(I)
assertI2I:
var i I = ...
i2 := i.(I2)
assertI2I2:
var i I = ...
i2, ok := i.(I2)
Fixes #17405
Fixes #8422
Change-Id: Ida2367bf8ce3cd2c6bb599a1814f1d275afabe21
Reviewed-on: https://go-review.googlesource.com/32313
Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: David Chase <drchase@google.com>
Keith Randall [Tue, 1 Nov 2016 04:18:00 +0000 (21:18 -0700)]
cmd/compile: On a runtime.KeepAlive call, keep whole variable alive
We generate an OpKeepAlive for the idata portion of the interface
for a runtime.KeepAlive call. But given such an op, we need to keep
the entire containing variable alive, not just the range that was
passed to the OpKeepAlive operation.
Fixes #17710
Change-Id: I90de66ec8065e22fb09bcf9722999ddda289ae6e
Reviewed-on: https://go-review.googlesource.com/32477
Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
Joe Tsai [Thu, 27 Oct 2016 23:23:53 +0000 (16:23 -0700)]
archive/tar: disable prefix field in Writer
The proper fix for the Writer is too involved to be done in time
for Go 1.8. Instead, we do a localized fix that simply disables the
prefix encoding logic. While this will prevent some legitimate uses
of prefix, it will ensure that we don't keep outputting invalid
GNU format files that have the prefix field populated.
For headers with long filenames that could have used the prefix field,
they will be promoted to use the PAX format, which ensures that we
will still be able to encode all headers that we were able to do before.
Matthew Dempsky [Wed, 2 Nov 2016 16:47:43 +0000 (09:47 -0700)]
cmd/compile: avoid double export of aliased objects
Instead of writing out the original object for each alias, ensure we
export the original object before any aliases. This allows the aliases
to simply refer back to the original object by qualified name.
Fixes #17636.
Change-Id: If80fa8c66b8fee8344a00b55d25a8aef22abd859
Reviewed-on: https://go-review.googlesource.com/32575
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org> Reviewed-by: Alan Donovan <adonovan@google.com>
Russ Cox [Thu, 27 Oct 2016 01:07:52 +0000 (21:07 -0400)]
net: fix Dial(":80") on Windows
Windows sockets allow bind to 0.0.0.0:80 but not connect to it.
To make Listen(":80") / Dial(":80") work as documented on Windows,
connect to 127.0.0.1 or ::1 (depending on network) in place of 0.0.0.0.
Russ Cox [Mon, 31 Oct 2016 23:27:26 +0000 (19:27 -0400)]
testing: introduce testing/internal/testdeps for holding testmain dependencies
Currently, we don't have package testing to import package regexp directly,
because then regexp can't have internal tests (or at least they become more
difficult to write), for fear of an import cycle. The solution we've been using
is for the generated test main package (pseudo-import path "testmain", package main)
to import regexp and pass in a matchString function for use by testing when
implementing the -run flags. This lets testing use regexp but without depending
on regexp and creating unnecessary cycles.
We want to add a few dependencies to runtime/pprof, notably regexp
but also compress/gzip, without causing those packages to have to work
hard to write internal tests.
Restructure the (dare I say it) dependency injection of regexp.MatchString
to be more general, and use it for the runtime/pprof functionality in addition
to the regexp functionality. The new package testing/internal/testdeps is
the root for the testing dependencies handled this way.
Code using testing.MainStart will have to change from passing in a matchString
implementation to passing in testdeps.TestDeps{}. Users of 'go test' don't do this,
but other build systems that have recreated 'go test' (for example, Blaze/Bazel)
may need to be updated. The new testdeps setup should make future updates
unnecessary, but even so we keep the comment about MainStart not being
subject to Go 1 compatibility.
Change-Id: Iec821d2afde10c79f95f3b23de5e71b219f47b92
Reviewed-on: https://go-review.googlesource.com/32455 Reviewed-by: Ian Lance Taylor <iant@golang.org>
Russ Cox [Mon, 31 Oct 2016 16:09:03 +0000 (12:09 -0400)]
cmd/pprof: move cmd/internal/pprof back to cmd/pprof/internal
CL 21870 moved the entire cmd/pprof/internal directory to cmd/internal/pprof
for use by cmd/trace, but really cmd/trace only needed cmd/pprof/internal/profile,
which became cmd/internal/pprof/profile, and then internal/pprof/profile.
Move the rest back under cmd/pprof so that it is clear that no other code
is reaching into the guts of cmd/pprof. Just like functions should not be
exported unless necessary, internals should not be made visible to more
code than necessary.
Raúl Silvera noted after the commit of CL 21870 that only the profile package
should have moved, but there was no followup fix (until now).
Change-Id: I603f4dcb0616df1e5d5eb7372e6fccda57e05079
Reviewed-on: https://go-review.googlesource.com/32453
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Michael Munday [Wed, 2 Nov 2016 15:41:40 +0000 (11:41 -0400)]
bytes, strings: update s390x code to match amd64 changes
Updates the s390x-specific files in these packages with the changes
to the amd64-specific files made during the review of CL 31690. I'd
like to keep these files in sync unless there is a reason to
diverge.
Ian Lance Taylor [Tue, 1 Nov 2016 19:06:22 +0000 (12:06 -0700)]
cmd/go: use cgo -srcdir when using SWIG
SWIG generates cgo input files in the work directory. When those files
are passed directly to cgo, cgo generates long file names that include
the object directory (with slashes replaced by underscores). Instead,
use cgo's new -srcdir option to give it short file names.
When using both SWIG and cgo, copy the cgo files into the object
directory first.
Use a shorter object file name when compiling the C file generated by
SWIG.
Fixes #17070.
Change-Id: Ic558603f1731636d9999f3130ad0224b24bd7dcb
Reviewed-on: https://go-review.googlesource.com/32485
Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: David Crawshaw <crawshaw@golang.org>
Ian Lance Taylor [Tue, 1 Nov 2016 21:13:34 +0000 (14:13 -0700)]
cmd/cgo: only record typedef name for pointer to struct
In a function argument, we handle a typedef for a pointer specially,
using the pointer type rather than the typedef, to permit the Go calls
to match the laxer type conversions permitted in C. We record the
typedef so that we use that type in the C code, in case it has a special
attribute. However, using the typedef is wrong when using a pointer to a
basic type, because the C code may sometimes use the typedef and
sometimes not, and using the typedef in all cases will cause incorrect
type errors on the Go side. Fortunately we only really need to use the
typedef when pointing to a struct/union/class, and in such a case
confusion is unlikely.
Fixes #17723.
Change-Id: Id2eaeb156faeaf2e8eb9cf0b8f95b44caf8cfbd2
Reviewed-on: https://go-review.googlesource.com/32536
Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: David Crawshaw <crawshaw@golang.org>
Robert Griesemer [Tue, 1 Nov 2016 21:46:59 +0000 (14:46 -0700)]
go/importer: handle multiple imports of the same object
Before aliases, and because we chose a simple export format for them,
a package may now export the same object more than once if there are
multiple exported aliases referring to that object. The go/importer
made the assumption this couldn't happen. Adjust it.
Fixes #17726.
Change-Id: Ibb9fc669a8748200b45ad78934d7453e5a5aad82
Reviewed-on: https://go-review.googlesource.com/32538 Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Robert Griesemer <gri@golang.org>
Ian Lance Taylor [Tue, 1 Nov 2016 20:04:56 +0000 (13:04 -0700)]
cmd/go: remove _cgo_flags from gccgo archive built using SWIG
Since SWIG uses cgo, when using SWIG with gccgo, the go tool will add a
_cgo_flags file to the package archive, just as it does with cgo. We
need to remove that file from the archive passed to the linker, just as
we do with cgo.
Change-Id: I5ef4fea92eec419f870fbf6f678691d15901ee6c
Reviewed-on: https://go-review.googlesource.com/32535
Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Michael Hudson-Doyle <michael.hudson@canonical.com>
David Crawshaw [Mon, 31 Oct 2016 03:53:09 +0000 (23:53 -0400)]
cmd/link: support plugins with no exported symbols
A plugin with no exported symbols is still potentially very useful.
Its init functions are called on load, and it so it can have visible
side effects.
Fixes #17681
Change-Id: Icdca31f48e5ab13c99020a2ef724f3de47dcd74b
Reviewed-on: https://go-review.googlesource.com/32437
Run-TryBot: David Crawshaw <crawshaw@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
David Crawshaw [Tue, 1 Nov 2016 19:28:55 +0000 (15:28 -0400)]
runtime: resolve type offsets using source module
The runtime.typeEquals function is used during typelinksinit to
determine the canonical set of *_type values to use throughout the
runtime. As such, it is run against non-canonical *_type values, that
is, types from modules that are duplicates of a type from another
module that was loaded earlier in the program life.
These non-canonical *_type values sometimes contain pointers. These
pointers are pointing to position-independent data, and so they are set
by ld.so using dynamic relocations when the module is loaded. As such,
the pointer can point to the equivalent memory from a previous module.
This means if typesEqual follows a pointer inside a *_type, it can end
up at a piece of memory from another module. If it reads a typeOff or
nameOff from that memory and attempts to resolve it against the
non-canonical *_type from the later module, it will end up with a
reference to junk memory.
Instead, resolve against the pointer the offset was read from, so the
data is valid.
Fixes #17709.
Should no longer matter after #17724 is resolved in a later Go.
Change-Id: Ie88b151a3407d82ac030a97b5b6a19fc781901cb
Reviewed-on: https://go-review.googlesource.com/32513
Run-TryBot: David Crawshaw <crawshaw@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
When the err from ReadFile is non-nil, we call t.Fatal(err).
Switch t.Fatal to t.Error + return.
ensure that close(results) happens on that code path as well.
Ilya Tocar [Fri, 21 Oct 2016 20:23:48 +0000 (23:23 +0300)]
bytes,strings: use IndexByte more often in Index on AMD64
IndexByte+compare is faster than indexShortStr in good case, when
first byte is rare, but is more costly in bad cases.
Start with IndexByte and switch to indexShortStr if we encounter
false positives more often than once per 8 bytes.
Brad Fitzpatrick [Tue, 1 Nov 2016 17:12:48 +0000 (17:12 +0000)]
net/http: add Transport.ProxyConnectHeader to control headers to proxies
Fixes #13290
Change-Id: I0f7e7683d86db501cbedb6a0b7349ceb0769701c
Reviewed-on: https://go-review.googlesource.com/32481 Reviewed-by: Martin Möhrmann <martisch@uos.de> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Bryan C. Mills [Thu, 27 Oct 2016 21:36:39 +0000 (17:36 -0400)]
runtime: align stack pointer in sigfwd
sigfwd calls an arbitrary C signal handler function. The System V ABI
for x86_64 (and the most recent revision of the ABI for i386) requires
the stack to be 16-byte aligned.
Fixes: #17641
Change-Id: I77f53d4a8c29c1b0fe8cfbcc8d5381c4e6f75a6b
Reviewed-on: https://go-review.googlesource.com/32107
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
Brad Fitzpatrick [Tue, 1 Nov 2016 15:24:11 +0000 (15:24 +0000)]
net/http, net/http/httptest: make http2's TrailerPrefix work for http1
Go's http1 implementation originally had a mechanism to send HTTP
trailers based on pre-declaring the trailer keys whose values you'd
later let after the header was written.
http2 copied the same mechanism, but it was found to be unsufficient
for gRPC's wire protocol. A second trailer mechanism was added later
(but only to http2) for handlers that want to send a trailer without
knowing in advance they'd need to.
Copy the same mechanism back to http1 and document it.
Fixes #15754
Change-Id: I8c40d55e28b0e5b7087d3d1a904a392c56ee1f9b
Reviewed-on: https://go-review.googlesource.com/32479 Reviewed-by: Ian Lance Taylor <iant@golang.org>
Lynn Boger [Tue, 1 Nov 2016 15:43:34 +0000 (10:43 -0500)]
cmd/vendor/golang.org/x/arch/ppc64/ppc64asm: skip TestObjdumpPowerManual if not ppc64x
Skip TestObjdumpPowerManual if the host system is not ppc64 or ppc64le.
This test depends on using the host objdump and comparing output, which
does not work as expected if the test is run on another host.
Orignates from golang.org/x/arch/ppc64/ppc64asm commit 8e2d4898.
David Crawshaw [Mon, 31 Oct 2016 12:59:05 +0000 (08:59 -0400)]
plugin: do not leak cRelName on error path
Fixes #17683
Change-Id: I46f45c63796b58e8a8f14e37592231cbe7cd6934
Reviewed-on: https://go-review.googlesource.com/32438 Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
David Crawshaw [Mon, 31 Oct 2016 00:30:38 +0000 (20:30 -0400)]
runtime: access modules via a slice
The introduction of -buildmode=plugin means modules can be added to a
Go program while it is running. This means there exists some time
while the program is running with the module is on the moduledata
linked list, but it has not been initialized to the satisfaction of
other parts of the runtime. Notably, the GC.
This CL adds a new way of access modules, an activeModules function.
It returns a slice of modules that is built in the background and
atomically swapped in. The parts of the runtime that need to wait on
module initialization can use this slice instead of the linked list.
Fixes #17455
Change-Id: I04790fd07e40c7295beb47cea202eb439206d33d
Reviewed-on: https://go-review.googlesource.com/32357 Reviewed-by: Ian Lance Taylor <iant@golang.org>
Michael Munday [Fri, 7 Oct 2016 16:16:26 +0000 (12:16 -0400)]
cmd/compile: improve s390x rules for folding ADDconst into loads/stores
There is no benefit to folding ADDconsts unless the resultant immediate
will fit into a 20-bit signed integer, so limit these rules accordingly.
Also the signed load operations were missing, so I've added them, and
I've also removed some MOVDaddr rules that were dead code (MOVDaddrs
are rematerializable on s390x which means they can't take inputs other
than SP or SB).
Change-Id: Iebeba78da37d3d71d32d4b7f49fe4ea9095d40ec
Reviewed-on: https://go-review.googlesource.com/30616
Run-TryBot: Michael Munday <munday@ca.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: David Chase <drchase@google.com>