Don't treat IPv4-mapped link-local IP addresses as IPv6 link-local
addresses, an IPv4 broadcast address as a global unicast IP address.
Fixes#11585.
Change-Id: I6a7a0c0601f18638f5c624ab63e12ee40f77b182
Reviewed-on: https://go-review.googlesource.com/11883
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
People use 80-column terminals because their grandparents used
punched cards. When I last used a punched card, in 1978, it seemed
antiquated even then. But today, people still set their terminal
widths to 80 to honor the struggles their fallen ancestors made to
endure this painful technology.
We must all stand and salute the 80 column flag, or risk the opprobium
of our peers.
For Pete's sake, I don't even use a fixed-width font. I don't even
believe in columns.
Fixes#11639 with extreme reluctance.
P.S. To avoid the horror of an automatically folded line of text, this commit message has been formatted to fit on an 80-column line, except for this postscript.
Change-Id: Ia2eb2dcf293dabe804c22ee5abb4bbb703f45c33
Reviewed-on: https://go-review.googlesource.com/12011
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Section.Data returns disk section data, but those are rounded up to
some predefined value. Processing these as is confuses dwarf parser
because of garbage at the end. Truncate Section.Data as per memory
section description.
Sometimes dwarf sections have memory section size of 0
(for pe object files). Keep those to their disk size.
Fixes#11608
Change-Id: I8de0a2271201a24aa9ac8dac44f1e9c8a9285183
Reviewed-on: https://go-review.googlesource.com/11950
Reviewed-by: Ian Lance Taylor <iant@golang.org>
GODEBUG=netdns=1 prints a one-time strategy decision. (cgo or go DNS lookups)
GODEBUG=netdns=2 prints the per-lookup strategy as a function of the hostname.
The new "netcgo" build tag forces cgo DNS lookups.
GODEBUG=netdns=go (or existing build tag "netgo") forces Go DNS resolution.
GODEBUG=netdns=cgo (or new build tag "netcgo") forces libc DNS resolution.
Options can be combined with e.g. GODEBUG=netdns=go+1 or GODEBUG=netdns=2+cgo.
Fixes#11322Fixes#11450
Change-Id: I7a67e9f759fd0a02320e7803f9ded1638b19e861
Reviewed-on: https://go-review.googlesource.com/11584
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
sysmon triggers a GC if there has been no GC for two minutes.
Currently, this is a STW GC. There is no reason for this to be STW, so
make it concurrent.
Fixes#10261.
Change-Id: I92f3ac37272d5c2a31480ff1fa897ebad08775a9
Reviewed-on: https://go-review.googlesource.com/11955
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
The architecture-specific details will be updated and expanded in
a subsequent CL (or series thereof).
Update #10096
Change-Id: I59c6be1fcc123fe8626ce2130e6ffe71152c87af
Reviewed-on: https://go-review.googlesource.com/11954
Reviewed-by: Russ Cox <rsc@golang.org>
Change the default behavior when showing the package docs
for a command to elide the symbols. This makes
go doc somecommand
show the top-level package docs only and hide the symbols,
which are probably irrelevant to the user. This has no effect
on explicit requests for internals, such as
go doc somecommand.sometype
The new -cmd flag restores the old behavior.
Fixes#10733.
Change-Id: I4d363081fe7dabf76ec8e5315770ac3609592f80
Reviewed-on: https://go-review.googlesource.com/11953
Reviewed-by: Russ Cox <rsc@golang.org>
They were missing from the inputs.
Unfortunately this means the .out files all have wrong line numbers,
but they are easy to update.
Change-Id: I254742f24ab803421f34d52d13b9afa93674edd6
Reviewed-on: https://go-review.googlesource.com/11958
Reviewed-by: Russ Cox <rsc@golang.org>
It was crashing.
This fixes the build for
GO15VENDOREXPERIMENT=1 go test -short runtime
Fixes#11416.
Change-Id: I74a9114cdd8ebafcc9d2a6f40bf500db19c6e825
Reviewed-on: https://go-review.googlesource.com/11964
Reviewed-by: Russ Cox <rsc@golang.org>
This avoids both a write barrier and then dynamic initialization
globals of the form
var x something
var xp = unsafe.Pointer(&x)
Using static initialization avoids emitting a relocation for &x,
which helps cgo.
Fixes#9411.
Change-Id: I0dbf480859cce6ab57ab805d1b8609c45b48f156
Reviewed-on: https://go-review.googlesource.com/11693
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
The recent https://golang.org/cl/11810 is reportedly a bit too
aggressive.
Apparently some HTTP requests in the wild do contain both a
Transfer-Encoding along with a bogus Content-Length. Instead of
returning a 400 Bad Request error, we should just ignore the
Content-Length like we did before.
Change-Id: I0001be90d09f8293a34f04691f608342875ff5c4
Reviewed-on: https://go-review.googlesource.com/11962
Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The expansion of structure, array, slice, and map literals
does not use the right line number in its introduced assignments
to temporaries, which leads to incorrect line number attribution
for expressions in those literals.
Inlining also incorrectly replaced the line numbers of args to
inlined functions.
This was revealed in CL 9721 because a now-avoided temporary
assignment introduced the correct line number.
I.e. before CL 9721
"tmp_wrongline := expr"
was transformed to
"tmp_rightline := expr; tmp_wrongline := tmp_rightline"
Also includes a repair to CL 10334 involving line numbers
where a spurious -1 remained (should have been 0, now is 0).
Fixes#11400.
Change-Id: I3a4687efe463977fa1e2c996606f4d91aaf22722
Reviewed-on: https://go-review.googlesource.com/11730
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Sameer Ajmani <sameer@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Basic randomization of goroutine scheduling for -race mode.
It is probably possible to do much better (there's a paper linked
in the issue that I haven't read, for example), but this suffices
to introduce at least some unpredictability into the scheduling order.
The goal here is to have _something_ for Go 1.5, so that we don't
start hitting more of these scheduling order-dependent bugs
if we change the scheduler order again in Go 1.6.
For #11372.
Change-Id: Idf1154123fbd5b7a1ee4d339e93f97635cc2bacb
Reviewed-on: https://go-review.googlesource.com/11795
Reviewed-by: Austin Clements <austin@google.com>
Go's continuous build system depends on HTTP trailers for the buildlet
interface.
Andrew rewrote the makerelease tool to work in terms of Go's builder
system (now at x/build/cmd/release), but it previously could only
create GCE-based buildlets, which meant x/build/cmd/release couldn't
build the release for Darwin.
https://golang.org/cl/11901 added support for proxying buildlet
connections via the coordinator, but that exposed the fact that
httputil.ReverseProxy couldn't proxy Trailers. A fork of that code
also wasn't possible because net/http needlessly deleted the "Trailer"
response header in the Transport code. This mistake goes back to
"release-branch.r56" and earlier but was never noticed because nobody
ever uses Trailers, and servers via ResponseWriter never had the
ability to even set trailers before this Go 1.5. Note that setting
trailers requires pre-declaring (in the response header) which
trailers you'll set later (after the response body). Because you could
never set them, before this release you could also never proxy them.
Change-Id: I2410a099921790dcd391675ae8610300efa19108
Reviewed-on: https://go-review.googlesource.com/11940
Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Don't know why, but git deleted the previous version of this change.
This is the same change as https://go-review.googlesource.com/11884,
which I will now abandon, with a couple of fixes.
Almost all done now. Could use help with the TODOs.
Major missing piece is the trace command. Vendoring
section is also weak, but it's also undocumented elsewhere.
Change-Id: I5d8556b23aa6628eb7bf0e330d4dd8d4ac2157c5
Reviewed-on: https://go-review.googlesource.com/11887
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Don't talk about commands that no longer exist.
There are still references throughout the tree, mostly in comments,
but they provide a charming historical backdrop for the idle tourist.
Change-Id: I637ebdce05bbc7df5addcc46cb772d2bb9f3e073
Reviewed-on: https://go-review.googlesource.com/11885
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
The second (fallback) draw is a no-op, but it's a non-trivial amount of work.
Fixes#11550.
benchmark old ns/op new ns/op delta
BenchmarkPaletted-4 16301219 7309568 -55.16%
Change-Id: Ic88c537b2b0c710cf517888f3dd15cb702dd142f
Reviewed-on: https://go-review.googlesource.com/11858
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Also add words about the assembler.
Change-Id: I9bd8cc88076f06b0eef36a07f57d1ad5d9261d8d
Reviewed-on: https://go-review.googlesource.com/11853
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This reverts commit 6f7961da28.
Russ suggests changing the frozon syscall package and obviously it's a
better solution. Perhaps he will also let me know the way how to get the
project owners to agree later.
Fixes#11492.
Change-Id: I98f9f366b72b85db54b4acfc3a604b62fb6d783c
Reviewed-on: https://go-review.googlesource.com/11854
Run-TryBot: Mikio Hara <mikioh.mikioh@gmail.com>
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
As per comments in cl/11834.
Change-Id: I285536b882fa9496e15d77d0d4c16ee913aca581
Reviewed-on: https://go-review.googlesource.com/11861
Reviewed-by: Daniel Theophanes <kardianos@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
On some VMs two events can happen at the same time. For examples:
179827399 GoStart p=2 g=11 off=936359 g=11
179827399 GoUnblock p=2 g=0 off=936355 g=11
If we do non-stable sort, the events can be reordered making the trace inconsistent.
Do stable sort instead.
Batches are dumped in FIFO order, so if these same-time events are split into
separate batches, stable sort still works.
Events on different CPUs go into different batches and can be reordered.
But the intention is that causally-related events on different CPUs
will have larger (non-zero) time diff.
Update #11320
Change-Id: Id1df96af41dff68ea1782ab4b23d5afd63b890c9
Reviewed-on: https://go-review.googlesource.com/11834
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Integrate the latest trace-viewer changes.
It now handles nanoseconds without any issues (thanks to @egonelbre!).
So change timestamps from microseconds to nanoseconds.
Change-Id: I010f27effde7e80c9992e6f276f6912354d27df4
Reviewed-on: https://go-review.googlesource.com/11244
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Egon Elbre <egonelbre@gmail.com>
Everything in the library but crypto and net.
Change-Id: I89b21b9621e6d338fa1891da0eabba5d7d2fe349
Reviewed-on: https://go-review.googlesource.com/11820
Reviewed-by: Russ Cox <rsc@golang.org>
Adding a mutex was easier than documenting it, and is consistent with
gob.
Fixes#9847
Change-Id: Ifa94c17e7c11643add81b35431ef840b794d78b1
Reviewed-on: https://go-review.googlesource.com/11682
Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The optional Qualifier function determines what prefix to attach to
package-level names, enabling clients to qualify packages in different
ways, for example, using only the package name instead of its complete
path, or using the locally appropriate name for package given a set of
(possibly renaming) imports.
Prior to this change, clients wanting this behavior had to copy
hundreds of lines of complex printing logic.
Fun fact: (*types.Package).Path and (*types.Package).Name are valid
Qualifier functions.
We provide the RelativeTo helper function to create Qualifiers so that
the old behavior remains a one-liner.
Fixesgolang/go#11133
This CL is a copy of https://go-review.googlesource.com/#/c/11692/
to the golang.org/x/tools repository.
Change-Id: I26d0f3644d077a26bfe350989f9c545f018eefbf
Reviewed-on: https://go-review.googlesource.com/11790
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
We can't address more than this on amd64 anyway.
Fixes#9862.
Change-Id: Ifb1abae558e2e1ee2dc953a76995f3f08c60b1df
Reviewed-on: https://go-review.googlesource.com/11715
Reviewed-by: Austin Clements <austin@google.com>
Compiling a simple file containing a slice of 100,000 strings,
the size of the resulting binary dropped from 5,896,224 bytes
to 3,495,968 bytes, which is the expected 2,400,000 bytes,
give or take.
Fixes#7384.
Change-Id: I3e551b5a1395b523a41b33518d81a1bf28da0906
Reviewed-on: https://go-review.googlesource.com/11698
Reviewed-by: Austin Clements <austin@google.com>
This was originally done in https://codereview.appspot.com/5690059
(Feb 2012) to deal with bad response headers coming back from webcams,
but it presents a potential security problem with HTTP request
smuggling for request headers containing "Content Length" instead of
"Content-Length".
Part of overall HTTP hardening for request smuggling. See RFC 7230.
Thanks to Régis Leroy for the report.
Change-Id: I92b17fb637c9171c5774ea1437979ae2c17ca88a
Reviewed-on: https://go-review.googlesource.com/11772
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
If you have more than 10 procs, then currently they are sorted alphabetically as
0, 10, 11, ..., 19, 2, 20, ...
Assign explicit order to procs so that they are sorted numerically.
Change-Id: I6d978d2cd439aa2fcbcf147842a643f9073eef75
Reviewed-on: https://go-review.googlesource.com/11750
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
RawPath is a hint to the desired encoding of Path.
It is ignored when it is not a valid encoding of Path,
such as when Path has been changed but RawPath has not.
It is not ignored but also not useful when it matches
the url package's natural choice of encoding.
In this latter case, set it to the empty string.
This should help drive home the point that clients
cannot in general depend on it being present and
that they should use the EncodedPath method instead.
This also reduces the impact of the change on tests,
especially tests that use reflect.DeepEqual on parsed URLs.
Change-Id: I437c51a33b85439a31c307caf1436118508ea196
Reviewed-on: https://go-review.googlesource.com/11760
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
