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20680 Commits

Author SHA1 Message Date
Russ Cox
4630218538 misc/cgo/test: fail issue 7978 with clearer error when GOTRACEBACK != 2
The test doesn't work with GOTRACEBACK != 2.
Diagnose that failure mode.

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews, r
https://golang.org/cl/152970043
2014-10-03 16:42:18 -04:00
Rob Pike
a22424567c fmt: part 2 of the great flag rebuild: make %+v work in formatters
Apply a similar transformation to %+v that we did to %#v, making it
a top-level setting separate from the + flag itself. This fixes the
appearance of flags in Formatters and cleans up the code too,
probably making it a little faster.

Fixes #8835.

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/154820043
2014-10-03 13:23:35 -07:00
Russ Cox
13da360845 runtime: clear sg.selectdone before saving in SudoG cache
Removes another dangling pointer that might
cause a memory leak in 1.4 or crash the GC in 1.5.

LGTM=rlh
R=golang-codereviews
CC=golang-codereviews, iant, khr, r, rlh
https://golang.org/cl/150520043
2014-10-03 15:33:29 -04:00
Russ Cox
0120f8378d runtime: clear stale values from G.param and SudoG.elem
This change was necessary on the dev.garbage branch
to keep the garbage collector from seeing pointers into
invalid heap areas.

On this default (Go 1.4) branch, the change removes
some possibility for memory leaks.

LGTM=khr
R=golang-codereviews, khr
CC=golang-codereviews, iant, r, rlh
https://golang.org/cl/155760043
2014-10-03 13:36:48 -04:00
Russ Cox
3ffd29fb2c cmd/cc, runtime: disallow structs without tags
Structs without tags have no unique name to use in the
Go definitions generated from the C types.
This caused issue 8812, fixed by CL 149260043.
Avoid future problems by requiring struct tags.

Update runtime as needed.
(There is no other C code in the tree.)

LGTM=bradfitz, iant
R=golang-codereviews, bradfitz, dave, iant
CC=golang-codereviews, khr, r
https://golang.org/cl/150360043
2014-10-03 12:44:20 -04:00
Alex Brainman
c65a47f890 undo CL 138250043 / 4eda5e4001fd
I will use different approach to solve this problem.
See CL 143160046 for details.

««« original CL description
syscall: keep Windows syscall pointers live too

Like https://golang.org/cl/139360044

LGTM=rsc, alex.brainman
R=alex.brainman, rsc
CC=golang-codereviews
https://golang.org/cl/138250043
»»»

LGTM=r
R=golang-codereviews, bradfitz, r
CC=golang-codereviews
https://golang.org/cl/147440043
2014-10-03 10:36:54 +10:00
Rob Pike
7c8e057ad3 fmt: make the %#v verb a special flag
The %#v verb is special: it says all values below need to print as %#v.
However, for some situations the # flag has other meanings and this
causes some issues, particularly in how Formatters work. Since %#v
dominates all formatting, translate it into actual state of the formatter
and decouple it from the # flag itself within the calculations (although
it must be restored when methods are doing the work.)
The result is cleaner code and correct handling of # for Formatters.
TODO: Apply the same thinking to the + flag in a followup CL.

Also, the wasString return value in handleMethods is always false,
so eliminate it.

Update #8835

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/146650043
2014-10-02 14:16:58 -07:00
Robert Griesemer
28ddfb090c math/big: math.Exp should return result >= 0 for |m| > 0
The documentation states that Exp(x, y, m)
computes x**y mod |m| for m != nil && m > 0.
In math.big, Mod is the Euclidean modulus,
which is always >= 0.

Fixes #8822.

LGTM=agl, r, rsc
R=agl, r, rsc
CC=golang-codereviews
https://golang.org/cl/145650043
2014-10-02 13:02:25 -07:00
Robert Griesemer
1dba6eb464 encoding/binary: fix error message
In the process, simplified internal sizeOf and
dataSize functions. Minor positive impact on
performance. Added test case.

benchmark                         old ns/op     new ns/op     delta
BenchmarkReadSlice1000Int32s      14006         14122         +0.83%
BenchmarkReadStruct               2508          2447          -2.43%
BenchmarkReadInts                 921           928           +0.76%
BenchmarkWriteInts                2086          2081          -0.24%
BenchmarkWriteSlice1000Int32s     13440         13497         +0.42%
BenchmarkPutUvarint32             28.5          26.3          -7.72%
BenchmarkPutUvarint64             81.3          76.7          -5.66%

benchmark                         old MB/s     new MB/s     speedup
BenchmarkReadSlice1000Int32s      285.58       283.24       0.99x
BenchmarkReadStruct               27.90        28.60        1.03x
BenchmarkReadInts                 32.57        32.31        0.99x
BenchmarkWriteInts                14.38        14.41        1.00x
BenchmarkWriteSlice1000Int32s     297.60       296.36       1.00x
BenchmarkPutUvarint32             140.55       151.92       1.08x
BenchmarkPutUvarint64             98.36        104.33       1.06x

Fixes #6818.

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/149290045
2014-10-02 12:53:51 -07:00
Mrunal Patel
f9d7e13955 syscall: support UID/GID map files for Linux user namespaces
Fixes #8447.

LGTM=iant
R=golang-codereviews, bradfitz, iant
CC=golang-codereviews
https://golang.org/cl/126190043
2014-10-02 11:37:06 -07:00
Ian Lance Taylor
ea491c5f96 A+C: add Mrunal Patel (Red Hat corporate CLA)
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/152010043
2014-10-02 11:36:39 -07:00
Nicolas Owens
e9d5fca9f3 syscall: fix Setenv for plan 9
envi needs to be updated during Setenv so the key can be correctly deleted later with Unsetenv.

Update #8849.

LGTM=0intro
R=bradfitz, 0intro
CC=golang-codereviews
https://golang.org/cl/149300046
2014-10-02 10:25:56 +02:00
Alex Brainman
714461740c run.bat: comment text properly
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/153830044
2014-10-02 16:15:36 +10:00
Robert Griesemer
bc89e8c575 time: A Timer must be properly created before use (documentation).
Fixes #8776.

LGTM=bradfitz
R=rsc, bradfitz
CC=golang-codereviews
https://golang.org/cl/145710043
2014-10-01 16:44:52 -07:00
Robert Griesemer
7e8218aedd encoding/json: don't panic on incorrect map argument
Fixes #8305.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/145680044
2014-10-01 16:24:17 -07:00
Robert Griesemer
94f3d8cfed encoding/binary: slightly better documentation
Fixes #7306.

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/153820044
2014-10-01 16:09:55 -07:00
Rob Pike
dba2faf2c6 doc/go_faq.html: explain the policy about unused imports a little better
This new text won't stop the whining but it might focus the whining a little more.

LGTM=adg
R=golang-codereviews, adg
CC=golang-codereviews
https://golang.org/cl/146680044
2014-10-01 15:25:56 -07:00
Rob Pike
9f4084278f fmt: fix internal unknownType function
This thing should never be called, but before
151960044 it was being called, incorrectly.
This is now just a precaution but let's pretend it
Fixes #8843
even though that was fixed by 151960044.
The test case was already there and ran, another mystery.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/151970043
2014-10-01 21:35:12 +00:00
Russ Cox
62d3202aaa reflect: fix IsValid vs Kind mismatch after Elem of nil interface
LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/151960044
2014-10-01 16:51:32 -04:00
Robert Griesemer
5edff32704 testing: clearer comment
Fixes #8797.

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/146680043
2014-10-01 13:19:40 -07:00
Rob Pike
cd5b785efe net/rpc: shut down connection if gob has error
The nicest solution would be to buffer the message and only write
it if it encodes correctly, but that adds considerable memory and
CPU overhead for a very rare condition. Instead, we just shut
down the connection if this happens.
Fixes #7689.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/146670043
2014-10-01 13:18:44 -07:00
Brad Fitzpatrick
85cdc49e8a os, syscall: add Unsetenv
Also address a TODO, making Clearenv pass through to cgo.

Based largely on Minux's earlier https://golang.org/cl/82040044

Fixes #6423

LGTM=iant, alex.brainman, r, rsc
R=rsc, iant, r, alex.brainman
CC=golang-codereviews
https://golang.org/cl/148370043
2014-10-01 11:17:15 -07:00
Andrew Gerrand
1a1341afed tag go1.3.3
LGTM=crawshaw
R=golang-codereviews, crawshaw
CC=golang-codereviews
https://golang.org/cl/146610043
2014-10-01 13:38:00 +10:00
Mikio Hara
6587557660 misc/nacl/README: fix typo
LGTM=dave
R=golang-codereviews, dave
CC=golang-codereviews
https://golang.org/cl/151870043
2014-10-01 09:16:55 +09:00
Andrew Gerrand
7210753f1f doc: document go1.3.3
LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/149280044
2014-10-01 08:30:51 +10:00
Paul van Brouwershaven
e7488b2189 x509: Fixed ASN.1 encoding in CRL Distribution Points extension
The ASN.1 encoding of the CRL Distribution Points extension showed an invalid false 'IsCompound' which caused a display problem in the Windows certificate viewer.

LGTM=agl
R=agl
CC=golang-codereviews
https://golang.org/cl/143320043
2014-09-30 13:38:48 -07:00
Alan Donovan
74b8693c54 cmd/cgo: add missing ast.SliceExpr.Max case to AST traversal.
+ static test

NB: there's a preexisting (dynamic) failure of test issue7978.go.

LGTM=iant
R=rsc, iant
CC=golang-codereviews
https://golang.org/cl/144650045
2014-09-30 16:08:04 -04:00
Robert Griesemer
146713b67a go/format, cmd/gofmt: added missing comments, minor internal cleanup
This is a minor cleanup following CL 142360043:

The internal parse and format functions in both packages
were almost identical - made them identical by adding an
extra parameter, and documented them as identical.

Eventually we should find a nice way to factor these functions
out, but we cannot do this now while in prep for 1.4.

No functionality change.

LGTM=adonovan
R=adonovan
CC=golang-codereviews
https://golang.org/cl/146520043
2014-09-30 12:26:38 -07:00
Brad Fitzpatrick
4a532c664d net/http/httputil: ensure DumpRequestOut dumps all of Body
Bodies larger than 8KB (the default bufio reader size) weren't
being dumped.  Force a read of the body so they're teed into
the response buffer.

Thanks to Steven Hartland for identifying the problem.

Fixes #8089

LGTM=r
R=golang-codereviews, r
CC=adg, golang-codereviews
https://golang.org/cl/144650044
2014-09-30 12:09:34 -07:00
Adam Langley
1b89cd1658 encoding/asn1: fix unmarshaling of implicitly tagged UTF-8 strings.
Fixes #8541.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/153770043
2014-09-30 11:49:15 -07:00
Robert Griesemer
47094dcf09 spec: clarify variable declaration type rules
Not a language change.

Several inaccuracies were fixed:

1) A variable declaration may declare more than just one
variable.

2) Variable initialization follows the rules of assignments,
including n:1 assignments. The existing wording implied a 1:1
or n:n rule and generally was somewhat unspecific.

3) The rules for variable declarations with no types and
untyped initialization expressions had minor holes (issue 8088).

4) Clarified the special cases of assignments of untyped values
(we don't just have untyped constants, but also untyped bools,
e.g. from comparisons). The new wording is more direct.

To that end, introduced the notion of an untyped constant's
"default type" so that the same concept doesn't have to be
repeatedly introduced.

Fixes #8088.

LGTM=iant, r, rsc
R=r, rsc, iant, ken
CC=golang-codereviews
https://golang.org/cl/142320043
2014-09-30 11:44:29 -07:00
Russ Cox
c017a4e118 cmd/go: sometimes name tmp test binary test.test.exe on Windows
Right now it is always pkgname.test.exe, but if pkgname is
patch or install or setup or update, Windows thinks that
running it will install new software, so it pops up a dialog
box asking for more permission.
Renaming the binary avoids the Windows security check.

This only applies to the binary that the Go command writes
to its temporary work directory. If the user runs 'go test -c'
or any of the other ways to generate a test binary, it will
continue to use pkgname.test.exe.

Fixes #8711.

LGTM=bradfitz
R=golang-codereviews, r
CC=alex.brainman, bradfitz, golang-codereviews, iant
https://golang.org/cl/146580043
2014-09-30 14:30:40 -04:00
Russ Cox
8b5221a57b cmd/pprof: add Go implementation
Update #8798

This is a new implementation of pprof,
written in Go instead of in Perl.
It was written primarily by Raul Silvera and
is in use for profiling programs of all languages
inside Google.

The internal structure is a bit package-heavy,
but it matches the copy used inside Google, and
since it is in an internal directory, we can make
changes to it later if we need to.

The only "new" file here is src/cmd/pprof/pprof.go,
which stitches together the Google pprof and the
Go command libraries for object file access.

I am explicitly NOT interested in style or review
comments on the rest of the files
(that is, src/cmd/pprof/internal/...).
Those are intended to stay as close to the Google
copies as possible, like we did with the pprof Perl script.

Still to do:

- Basic tests.
- Real command documentation.
- Hook up disassemblers.

LGTM=r
R=r, bradfitz, alex.brainman, dave
CC=golang-codereviews
https://golang.org/cl/153750043
2014-09-30 13:41:54 -04:00
Russ Cox
454d1b0e8b cmd/gc: fix call order in array literal of slice literal of make chan
Fixes #8761.

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews, r
https://golang.org/cl/144530045
2014-09-30 12:48:47 -04:00
Russ Cox
a6abe22eb6 compress/*: note that NewReader may introduce buffering
Fixes #8309.

LGTM=r
R=golang-codereviews, r
CC=golang-codereviews, iant
https://golang.org/cl/147380043
2014-09-30 12:31:18 -04:00
Russ Cox
0239595306 compress/zlib: mention that NewReaderDict can return ErrDictionary
Fixes #7935.

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews, ruiu
https://golang.org/cl/147390043
2014-09-30 12:30:31 -04:00
Russ Cox
5a1906dc47 log/syslog: try /var/run/log, for FreeBSD
Fixes #8449.

LGTM=iant
R=golang-codereviews, iant
CC=bradfitz, golang-codereviews
https://golang.org/cl/145600044
2014-09-30 12:30:16 -04:00
Russ Cox
c75f81f0ed cmd/objdump: move armasm, x86asm into internal packages
For Go 1.3 these external packages were collapsed into
large single-file implementations stored in the cmd/objdump
directory.

For Go 1.4 we want pprof to be able to link against them too,
so move them into cmd/internal, where they can be shared.

The new files are copied from the repo in the file path (rsc.io/...).
Those repos were code reviewed during development
(mainly by crawshaw and minux), because we knew the
main repo would use them.

Update #8798

LGTM=bradfitz
R=crawshaw, bradfitz
CC=golang-codereviews
https://golang.org/cl/153750044
2014-09-30 12:28:24 -04:00
Russ Cox
7de0c315f6 CONTRIBUTORS: add Raul Silvera (Google CLA)
Raul wrote the pprof code in CL 153750043.

LGTM=bradfitz, r
R=r, bradfitz
CC=golang-codereviews
https://golang.org/cl/146450043
2014-09-30 12:08:22 -04:00
Russ Cox
9b2b0c8c16 regexp/syntax: reject large repetitions created by nesting small ones
Fixes #7609.

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/150270043
2014-09-30 12:08:09 -04:00
Keith Randall
ac9218f5f0 runtime: fix scanning of gc work buffer
GC types were not being generated for the garbage collector
work buffer.  The markfor object was being collected as a result.
This broke amd64p32 and maybe plan9 builds.  Why it didn't break
every build I'm not sure...

Fixes #8812

LGTM=0intro, rsc
R=golang-codereviews, dave, khr, 0intro, rsc
CC=golang-codereviews
https://golang.org/cl/149260043
2014-09-30 08:51:02 -07:00
Dmitriy Vyukov
12308d5a0b runtime: fix throwsplit check
Newstack runs on g0, g0->throwsplit is never set.

LGTM=rsc
R=rsc
CC=golang-codereviews, khr
https://golang.org/cl/147370043
2014-09-30 19:34:33 +04:00
Keith Randall
70b2da98ca runtime: initialize traceback variables earlier
Our traceback code needs to know the PC of several special
functions, including goexit, mcall, etc.  Make sure that
these PCs are initialized before any traceback occurs.

Fixes #8766

LGTM=rsc
R=golang-codereviews, rsc, khr, bradfitz
CC=golang-codereviews
https://golang.org/cl/145570043
2014-09-29 21:21:36 -07:00
Brad Fitzpatrick
f13cec9f57 net/http: make Transport.CloseIdleConnections also close pending dials
See comment 4 of https://code.google.com/p/go/issues/detail?id=8483#c4:

"So if a user creates a http.Client, issues a bunch of
requests and then wants to shutdown it and all opened connections;
what is she intended to do? The report suggests that just waiting for
all pending requests and calling CloseIdleConnections won't do, as
there can be new racing connections. Obviously she can't do what
you've done in the test, as it uses the unexported function.  If this
happens periodically, it can lead to serious resource leaks (the
transport is also preserved alive).  Am I missing something?"

This CL tracks the user's intention to close all idle
connections (CloseIdleConnections sets it true; and making a
new request sets it false). If a pending dial finishes and
nobody wants it, before it's retained for a future caller, the
"wantIdle" bool is checked and it's closed if the user has
called CloseIdleConnections without a later call to make a new
request.

Fixes #8483

LGTM=adg
R=golang-codereviews, dvyukov, adg
CC=golang-codereviews, rsc
https://golang.org/cl/148970043
2014-09-29 18:16:15 -07:00
Dmitri Shuralyov
912ec1990b go/format, cmd/gofmt: fix issues with partial Go code with indent
Fixes #5551.
Fixes #4449.

Adds tests for both issues.

Note that the two issues occur only when formatting partial Go code
with indent.

The best way to understand the change is as follows: I took the code
of cmd/gofmt and go/format, combined it into one unified code that
does not suffer from either 4449 nor 5551, and then applied that code
to both cmd/gofmt and go/format.

As a result, there is now much more identical code between the two
packages, making future code deduplication easier (it was not possible
to do that now without adding public APIs, which I was advised not to
do at this time).

More specifically, I took the parse() of cmd/gofmt which correctly
preserves comments (issue 5551) and modified it to fix issue where
it would sometimes modify literal values (issue 4449).

I ended up removing the matchSpace() function because it no longer
needed to do some of its work (insert indent), and a part of its work
had to be done in advance (determining the indentation of first code
line), because that calculation is required for cfg.Fprint() to run.

adjustIndent is used to adjust the indent of cfg.Fprint() to compensate
for the body of wrapper func being indented by one level. This allows
to get rid of the bytes.Replace text manipulation of inner content,
which was problematic and sometimes altered raw string literals (issue
4449). This means that sometimes the value of cfg.Indent is negative,
but that works as expected.

So now the algorithm for formatting partial Go code is:

1. Determine and prepend leading space of original source.
2. Determine and prepend indentation of first code line.
3. Format and write partial Go code (with all of its leading &
   trailing space trimmed).
4. Determine and append trailing space of original source.

LGTM=gri
R=golang-codereviews, bradfitz, gri
CC=golang-codereviews
https://golang.org/cl/142360043
2014-09-29 17:04:48 -07:00
Dave Cheney
0b36211cfb liblink: generate MRC replacement in liblink, not tls_arm
Fixes #8690.

This CL moves the save of LR around BL runtime.read_tls_fallback to liblink as it is not needed when MRC is not replaced.

LGTM=rsc, minux
R=rsc, khr, minux
CC=golang-codereviews
https://golang.org/cl/147310043
2014-09-30 10:03:10 +10:00
Tom Linford
5368e63b57 x509: add root certs for android.
On android, root certificates appear to be stored in the folder
/system/etc/security/cacerts, which has many certs in several
different files. This change adds a new array of directories in
which certs can be found.

To test this, I simply tried making a request with the http
library to an HTTPS URL on an android emulator and manually
verified that it worked.

LGTM=crawshaw
R=golang-codereviews, gobot, crawshaw
CC=golang-codereviews
https://golang.org/cl/151800043
2014-09-30 09:51:49 +10:00
Brad Fitzpatrick
3df5780126 A+C: Tom Linford (individual CLA)
Generated by a+c.

R=gobot
CC=golang-codereviews
https://golang.org/cl/149260044
2014-09-29 15:57:03 -07:00
Keith Randall
b4380a3ba2 runtime: delete unused variables.
We're not comparing with code addresses any more.  Instead,
we use nil algorithm functions to mark uncomparable types.

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/151040044
2014-09-29 14:05:33 -07:00
James Tucker
2da734189d net/http: enable Transfer-Encoding: identity without Content-Length for HTTP 1.1.
Use case is SSE recommended configuration: http://www.w3.org/TR/eventsource/#notes
Removes a TODO.

LGTM=bradfitz
R=golang-codereviews, bradfitz, tommi.virtanen
CC=golang-codereviews
https://golang.org/cl/100000044
2014-09-29 13:53:42 -07:00