This version of quoting allows runes in category Zs, such as the
ideographic space characters, to be passed through unquoted.

Still to do (maybe): A way to access this from Printf.

Updates #11511.

Change-Id: I3bae84b1aa0bc1b885318d3f67c5f451099a2a5a
Reviewed-on: https://go-review.googlesource.com/14184Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>

Convert some fields of struct Type in go.go from uint8 to bool.

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I0a6c53f8ee686839b5234010ee2de7ae3940d499
Reviewed-on: https://go-review.googlesource.com/14370
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Convert Pkg.Imported, Pkg.Exported, Pkg.Direct from uint8/int8/int8 to bool.

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I67a71f1186ff9737c03eca413f7d35d8a79ebc9b
Reviewed-on: https://go-review.googlesource.com/14371
Run-TryBot: Dave Cheney <dave@cheney.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Passes go build -a -toolexec 'toolstash -cmp' std cmd.

Change-Id: I804ee4252fa9be78cb277faf7f467e6c9cfdd4a6
Reviewed-on: https://go-review.googlesource.com/14319
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Remove unused field Type.Siggen in go.go.

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: Ia61fe65a226c913fbf4a11a71d7453c56aa46c0e
Reviewed-on: https://go-review.googlesource.com/14372
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>

Passes go build -a -toolexec 'toolstash -cmp' std.

Change-Id: Ica62765d3c1ef052afed34da1b3ac3f80646cc55
Reviewed-on: https://go-review.googlesource.com/14318Reviewed-by: Dave Cheney <dave@cheney.net>
Run-TryBot: Dave Cheney <dave@cheney.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Convert Type.Broke from a uint8 to a boolean

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I44e7548c71b00467e36576bdf62933c42555a21a
Reviewed-on: https://go-review.googlesource.com/14307
Run-TryBot: Dave Cheney <dave@cheney.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Håvard Haugen <havard.haugen@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Convert Label.Used to a boolean. Also move the field to the
bottom of the struct to avoid padding.

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: If09ee92f9d54dce807e7b862cf771005daed810d
Reviewed-on: https://go-review.googlesource.com/14308
Run-TryBot: Dave Cheney <dave@cheney.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Change-Id: Iccb0221bd9aef062d20798b952eaa09d9e60b902
Reviewed-on: https://go-review.googlesource.com/14345Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Nicer swaps, loops (removed tmp variables). Use of bool instead of int.

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I541904c74b57297848decc51a8a4913a8eca4af3
Reviewed-on: https://go-review.googlesource.com/14316
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

When building a shared library, all functions that are declared must actually
be defined.

Change-Id: I1488690cecfb66e62d9fdb3b8d257a4dc31d202a
Reviewed-on: https://go-review.googlesource.com/14187Reviewed-by: Dave Cheney <dave@cheney.net>

Fix mkzversion to produce correctly formatted runtime/zversion.go.

Change-Id: Ie6bcd361a2f2e390b7f6c4980fcae2c41bb7e52f
Reviewed-on: https://go-review.googlesource.com/14355Reviewed-by: Andrew Gerrand <adg@golang.org>

This one of a set of changes to make the transition away from NodeList
easier by removing cases in which NodeList doesn't act semi-trivially like a
[]*Node.

This CL was originally prepared by Josh Bleecher Snyder <josharian@gmail.com>.

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I4d041b343952f4a31f3150fd70669e08fcaa74f8
Reviewed-on: https://go-review.googlesource.com/14305
Run-TryBot: Dave Cheney <dave@cheney.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

The code parsing register lists involves an inner loop on
each range defined by the lo,hi bounds. The condition on
this loop (for lo<=hi) is fragile, because the bounds
are unsigned 16 bits numbers.

In some corner cases, the calculated upper bound is 2^16-1
leading to an infinite loop.

Parsing operand `[):[o-FP` results in:
- an infinite loop for non ARM architectures
- the generation of almost 2^16 errors for the ARM architecture
  (which are then ignored)

This CL improves the code in 3 ways:
- bail out early when parsing non R prefixed registers
- make sure the register index is never negative
- make sure the number of iterations is limited by the
  maximum size of the range (as a defensive measure).

Fixes #12469

Change-Id: Ib1e7e36fb8ad5a3a52c50fc6219d3cfe2b39cc34
Reviewed-on: https://go-review.googlesource.com/14314Reviewed-by: Rob Pike <r@golang.org>

This one of a set of changes to make the transition away from NodeList
easier by removing cases in which NodeList doesn't act semi-trivially like a
[]*Node.

This CL was originally prepared by Josh Bleecher Snyder <josharian@gmail.com>.

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I582ff8b077eb384b84721a1edb0c1efbc0c40059
Reviewed-on: https://go-review.googlesource.com/14304Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
Run-TryBot: Dave Cheney <dave@cheney.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>

When running an experimental kernel with IPv4 disabled, Listen(":port")
currently tries to create an AF_INET socket, and fails.  Instead, it
should see !supportsIPv4, and use an AF_INET6 socket.

This sort of environment is quite esoteric at the moment, but I can
force the tests to fail on regular Linux using the following tweaks:

- net/net.go: supportsIPv4, supportsIPv6, supportsIPv4map = false, true, false
- net/sockopt_linux.go: ipv6only=true
- net/ipsock_posix.go: Revert this fix
- ./make.bash && ../bin/go test net

Also, make the arrows in server_test.go point to the left, because
server<-client is easier to read.

Fixes #12510

Change-Id: I0cc3b6b08d5e6908d2fbf8594f652ba19815aa4b
Reviewed-on: https://go-review.googlesource.com/14334
Run-TryBot: Paul Marks <pmarks@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

This is a first of a set of changes to make the transition away from NodeList
easier by removing cases in which NodeList doesn't act semi-trivially like a
[]*Node.

This CL was originally prepared by Josh Bleecher Snyder <josharian@gmail.com>.

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: Iad10b75e42b5b24e1694407841282fa3bab2dc9f
Reviewed-on: https://go-review.googlesource.com/14232
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

This is more correct with respect to garbage collection.
I don't know of any specific failures it could cause today.

Change-Id: I7eed6a06d2f281051199e79e4a9913aa8360ded7
Reviewed-on: https://go-review.googlesource.com/14137Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Also go generate to update generated files.

Change-Id: I049708db93455f0030ba5afc6f218fde6220958d
Reviewed-on: https://go-review.googlesource.com/14331Reviewed-by: Damien Neil <dneil@google.com>

TestNoteReading fails on Solaris with linkmode=external due to some
assumptions made about how ELF .note sections are written by some
linkers.

On current versions of Solaris and older derivatives, SHF_ALLOC is
intentionally ignored for .note sections unless the .note section is
assigned to the text segment via a mapfile.  Also, if .note sections
are assigned to the text segment, no PT_NOTE program header will be
created thwarting Go's attempts at attempting to quickly find the
.note.

Furthermore, Go assumes that the relevant note segment will be placed
early in the file while the Solaris linker currently places the note
segment last in the file, additionally thwarting Go's optimisation
attempts that read only the first 16KB of the file to find the
buildid.

The fix is to detect when the note section is outside of the first
16KB of the file and then fallback to additionally reading that
section of the file.  This way, in future versions of Solaris when
this linking behaviour is changed, the fast path will always succeed
and we'll only be slower if it fails; likewise, any other linker that
does this will also just work.

Fixes #12178

Change-Id: I61c1dc3f744ae3ad63938386d2ace8a432c0efe1
Reviewed-on: https://go-review.googlesource.com/14210
Run-TryBot: Aram Hăvărneanu <aram@mgk.ro>
Reviewed-by: Aram Hăvărneanu <aram@mgk.ro>

Revert "cmd/internal/ld: put read-only relocated data into .data.rel.ro when making a shared object"

This reverts commit 2c2cbb69.

Broke darwin/arm64

Change-Id: Ibd2dea475d6ce6a8b4b40e2da19a83fc0514025d
Reviewed-on: https://go-review.googlesource.com/14301Reviewed-by: Ian Lance Taylor <iant@golang.org>

Fixes #8434

Change-Id: I323222b4160f3aba35cac1de7f6df93c524b72ec
Reviewed-on: https://go-review.googlesource.com/14169Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Optimize two calls of io.Copy which cannot make use of neither
io.ReaderFrom nor io.WriterTo optimization tricks by replacing them with
io.CopyBuffer with reusable buffers.

First is fallback call to io.Copy when server misses the optimized case
of using sendfile to copy from a regular file to net.TCPConn; second is
use of io.Copy on piped reader/writer when handler implementation uses
http.CloseNotifier interface. One of the notable users of
http.CloseNotifier is httputil.ReverseProxy.

benchmark                    old ns/op     new ns/op     delta
BenchmarkCloseNotifier-4     309591        303388        -2.00%

benchmark                    old allocs     new allocs     delta
BenchmarkCloseNotifier-4     50             49             -2.00%

benchmark                    old bytes     new bytes     delta
BenchmarkCloseNotifier-4     36168         3140          -91.32%

Fixes #12455

Change-Id: I512e6aa2f1aeed2ed00246afb3350c819b65b87e
Reviewed-on: https://go-review.googlesource.com/14177
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Fixes #11000

Change-Id: Ic137e8a6c5c6b5b7eee213aca9acf78368e1d686
Reviewed-on: https://go-review.googlesource.com/14296Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Simplify slice/map literal expressions.
Caught with gofmt -d -s, fixed with gofmt -w -s
Checked that the result can still be compiled with Go 1.4.

Change-Id: I5c58801c20919618d2ad52b8e2380d53df2783f1
Reviewed-on: https://go-review.googlesource.com/13831Reviewed-by: Andrew Gerrand <adg@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Simplify slice/map literal expressions.
Caught with gofmt -d -s, fixed with gofmt -w -s

Change-Id: Iefd5f263c4f89a81da9427a7b9d97f13c35ab64f
Reviewed-on: https://go-review.googlesource.com/13838Reviewed-by: Andrew Gerrand <adg@golang.org>

All the code was there to do this, it just wasn't hooked up.

Fixes #10914

Change-Id: Ide8f9bbe50fecb5d11cd579915ee98d4c7efe403
Reviewed-on: https://go-review.googlesource.com/14142Reviewed-by: Ian Lance Taylor <iant@golang.org>

This is generated during fp code when -shared is active.

Change-Id: Ia1092299b9c3b63ff771ca4842158b42c34bd008
Reviewed-on: https://go-review.googlesource.com/14286Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>

Some symbols, for example, masks requires 16-byte alignment, and
they are placed in the text section. Before this change, the text
section is only aligned to 4-byte, and it's making masks unaligned.

Fixes #12415.

Change-Id: I7767778d1b4f7d3e74c2719a02848350782a4160
Reviewed-on: https://go-review.googlesource.com/14166
Run-TryBot: Minux Ma <minux@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Currently Go produces shared libraries that cannot be shared between processes
because they have relocations against the text segment (not text section). This
fixes this by moving some data to sections with magic names recognized by the
static linker.

Fixes #10914
Updates #9210

Change-Id: I7178daadc0ae87953d5a084aa3d580f4e3b46d47
Reviewed-on: https://go-review.googlesource.com/10300
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

The lexer needs to process all #if[n]defs, even those found when processing is
disabled by a preceding failed conditional, or the first #endif in something
like:

    #ifdef <undefined>
    #ifdef whatever
    #endif
    #endif

terminates the first #ifdef and the second causes an error. And then the
processing of the inner #ifdefs needs to ignore their argument when they are
disabled by an outer failed condition.

Change-Id: Iba259498f1e16042f5b7580b9c000bb0599733d0
Reviewed-on: https://go-review.googlesource.com/14253Reviewed-by: Rob Pike <r@golang.org>

Allow registry blobs to be as large as 500MB

Update #12493

Change-Id: I1d0e5c10772d25f8e7e17fed6e2e7dd12ca4e7cf
Reviewed-on: https://go-review.googlesource.com/14287Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Change-Id: Iab669b2a9dd0510c0e54f9ec1cbe2b83b991bceb
Reviewed-on: https://go-review.googlesource.com/14283Reviewed-by: Minux Ma <minux@golang.org>

And do it properly so freebsd and nacl still work.

Change-Id: I6f9f30e93ceae6dee59215ed608c6a158bdbdbb0
Reviewed-on: https://go-review.googlesource.com/14280
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Fixes #12454.

Change-Id: I6406b0119bc4d6c3d1e6f1896b588b7d101448a3
Reviewed-on: https://go-review.googlesource.com/14274
Run-TryBot: Minux Ma <minux@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Explicitly say that *Table returned by MakeTable may not be
modified. Otherwise, this leads to very subtle bugs that may
or may not manifest themselves.

Same comment was made on package crc64, to keep the future
open to the caching tables that crc32 effectively does.

Fixes: #12487.

Change-Id: I2881bebb8b16f6f8564412172774c79c2593c6c1
Reviewed-on: https://go-review.googlesource.com/14258Reviewed-by: Ian Lance Taylor <iant@golang.org>

This reverts commit bf99d8f8.

Change-Id: Id4374ed35802cfbfe11e015ccd9526d3497dc8cc
Reviewed-on: https://go-review.googlesource.com/14239Reviewed-by: Dave Cheney <dave@cheney.net>

The default implementation of Accept, which spins up a new server
for every new connection, calls log.Fatal if the listener is closed,
stopping any outstanding work. Change that to a non-fatal log
call so work can continue.

There is no programmatic signaling of the problem, just the log,
but that should be enough.

Fixes #11221.

Change-Id: I7c7f6164a0a0143236729eb778d7638c51c34ed1
Reviewed-on: https://go-review.googlesource.com/14185Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Change-Id: I39a2c4101e6c59f4cd693cb0368f3567ea37ca5b
Reviewed-on: https://go-review.googlesource.com/14255Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

These instructions are special cases that were missed in the translation.
The second argument must go into the Reg field not the To field.

Fixes #12458

For Go 1.5.1

Change-Id: Iad57c60c7e38e3bcfafda483ed5037ce670e8816
Reviewed-on: https://go-review.googlesource.com/14183Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Russ Cox <rsc@golang.org>