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14340 Commits

Author SHA1 Message Date
Shenghou Ma
ef2ee4526e doc: remove ExpressivenessOfGo.pdf
It has been moved to go.talks/2010/ExpressivenessOfGo-2010.pdf
        URL: http://talks.golang.org/2010/ExpressivenessOfGo-2010.pdf

R=r
CC=golang-dev
https://golang.org/cl/6660046
2012-10-12 18:50:41 +08:00
Shenghou Ma
378d7ef59f syscall: FreeBSD/ARM support
R=rsc, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/6657048
2012-10-12 16:26:42 +08:00
Shenghou Ma
1e9f308545 cmd/5l: reorder some struct fields to reduce memory consumption
Valgrind Massif result when linking godoc:
On amd64:
                    old          new         -/+
mem_heap_B       185844612    175358047    -5.7%
mem_heap_extra_B    773404       773137    -0.0%

On 386/ARM:
                    old          new         -/+
mem_heap_B       141775701    131289941    -7.4%
mem_heap_extra_B    737011       736955    -0.0%

R=golang-dev, r, dave
CC=golang-dev
https://golang.org/cl/6655045
2012-10-12 13:39:12 +08:00
Shenghou Ma
19dc7bb18f cmd/dist: fix superfluous and confusing "binaries ... to be copied or moved" message
Also, to aid debugging cmd/dist, make make.bat support --dist-tool flag.

Fixes #3100.

R=alex.brainman
CC=golang-dev
https://golang.org/cl/6637061
2012-10-12 13:35:05 +08:00
Rob Pike
e171b97ee6 fmt: document some undocumented details
Better explanation of width for floating-point values.
Explain that scanning does not handle %#q etc.

Fixes #4202.
Fixes #4206.

R=golang-dev, adg, rsc, iant
CC=golang-dev
https://golang.org/cl/6620074
2012-10-12 16:16:55 +11:00
Evan Shaw
eae25d430d bytes, strings: add (*Reader).WriteTo
Fixes #4031.

R=golang-dev, bradfitz, remyoudompheng, r, dave
CC=golang-dev
https://golang.org/cl/6632046
2012-10-12 14:43:50 +11:00
Rob Pike
06d42690b6 time: delete erroneous word from documentation.
Fixes #4236.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6658051
2012-10-12 11:00:00 +11:00
Andrew Gerrand
bd6601f4a0 os/signal: add Notify example
R=golang-dev, dsymonds, r
CC=golang-dev
https://golang.org/cl/6615078
2012-10-12 10:22:13 +11:00
Robert Griesemer
4bee88d45f math/big: more conservative use of lock for divisor table
Minor performance impact running sequentially:

benchmark                      old ns/op    new ns/op    delta
BenchmarkString10Base2               389          391   +0.51%
BenchmarkString100Base2             1530         1534   +0.26%
BenchmarkString1000Base2           11789        11787   -0.02%
BenchmarkString10000Base2         111443       112030   +0.53%
BenchmarkString100000Base2       1017483      1015347   -0.21%
BenchmarkString10Base8               339          344   +1.47%
BenchmarkString100Base8              753          756   +0.40%
BenchmarkString1000Base8            4618         4641   +0.50%
BenchmarkString10000Base8          43217        43534   +0.73%
BenchmarkString100000Base8        397518       400602   +0.78%
BenchmarkString10Base10              630          630   +0.00%
BenchmarkString100Base10            1975         1960   -0.76%
BenchmarkString1000Base10          10179        10174   -0.05%
BenchmarkString10000Base10         44527        44416   -0.25%
BenchmarkString100000Base10     14404694     14425308   +0.14%
BenchmarkString10Base16              283          288   +1.77%
BenchmarkString100Base16             597          598   +0.17%
BenchmarkString1000Base16           3189         3186   -0.09%
BenchmarkString10000Base16         29403        29364   -0.13%
BenchmarkString100000Base16       265657       265587   -0.03%

Note that due to other improvements (faster assembly routines,
better code generation by compiler), these benchmarks now run
up to 37% faster than they used to at the last time measured (1/9/2012).

Minor performance impact for StringPiParallel running in parallel:

Current CL but with Lock/Unlock commented out (removed):

BenchmarkStringPiParallel	    5000	    343581 ns/op
BenchmarkStringPiParallel-2	   10000	    184511 ns/op
BenchmarkStringPiParallel-3	   10000	    129768 ns/op
BenchmarkStringPiParallel-4	   10000	    102326 ns/op

Current CL:

BenchmarkStringPiParallel	    5000	    345169 ns/op
BenchmarkStringPiParallel-2	   10000	    185827 ns/op
BenchmarkStringPiParallel-3	   10000	    131168 ns/op
BenchmarkStringPiParallel-4	   10000	    102353 ns/op

Fixes #4218.

R=dvyukov, michael.jones, dave
CC=golang-dev
https://golang.org/cl/6643053
2012-10-11 16:04:03 -07:00
Adam Langley
3acce59b93 crypto/rsa: fix decryption benchmark.
I was an idiot and was thinking that a small base didn't matter
because the exponentiation would quickly make the number the same size
as the modulus. But, of course, the small base continues to make
multiplications unrealistically cheap throughout the computation.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6649048
2012-10-11 18:25:23 -04:00
Dave Cheney
a14f87ca81 net/http: fix data race on countReader.n
Fixes #4220.

R=dvyukov, bradfitz
CC=golang-dev
https://golang.org/cl/6638053
2012-10-12 09:17:56 +11:00
Dave Cheney
f1b1753627 net/http: fix race on bodyEOFSignal.isClosed
Update #4191.

Fixes unreported race failure at
http://build.golang.org/log/61e43a328fb220801d3d5c88cd91916cfc5dc43c

R=dvyukov, bradfitz
CC=golang-dev
https://golang.org/cl/6640057
2012-10-12 08:32:56 +11:00
Adam Langley
6720997f9e crypto/hmac: add Equal function.
It was suggested that it's too easy to use crypto/hmac insecurely and
I think that has some merit. This change adds a Equal function to
make it obvious that MAC values should be compared in constant time.

R=rsc, max
CC=golang-dev
https://golang.org/cl/6632044
2012-10-11 15:28:02 -04:00
Shenghou Ma
4c473c02e1 doc/contribute.html: assorted fixes
0. windows uses all.bat instead of ./all.bash
1. correct expected all.bash output
2. mention you need to use an application specific password
if you're using 2-step verification
3. note you can edit files included in CL by 'hg change NNNN'
or 'hg file'

R=golang-dev, adg, r
CC=golang-dev
https://golang.org/cl/6615060
2012-10-11 23:33:57 +08:00
Andrew Gerrand
b13c7eec64 godoc: update favicon
R=golang-dev
CC=golang-dev
https://golang.org/cl/6641058
2012-10-11 17:02:36 +11:00
Andrew Gerrand
2100947d4a doc/faq: discuss virtual memory use by go processes
Fixes #3948.

R=golang-dev, r, dave, dsymonds
CC=golang-dev
https://golang.org/cl/6639064
2012-10-11 14:21:19 +11:00
Jimmy Zelinskie
dad1228cc3 doc/articles/wiki: numerous fixes
Fixes #3733
Fixes #2149
Updated Syntax
Added part3.go example program
Added part3-errorhandling.go example program
Improved wording in some places

R=golang-dev, adg, minux.ma
CC=golang-dev
https://golang.org/cl/6636048
2012-10-11 13:07:34 +11:00
Andrew Gerrand
a3d116cf78 A+C: add Jimmy Zelinskie (Individual CLA)
R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/6642068
2012-10-11 11:20:01 +11:00
Andrew Gerrand
bd31e62982 godoc: restore toy selection to playground widget
Fixes #4225.

R=golang-dev
CC=golang-dev
https://golang.org/cl/6640054
2012-10-11 09:53:37 +11:00
Shenghou Ma
6572c7ee93 doc/godoc.js: assign tmp. id to nodes without id in generateTOC()
R=adg
CC=golang-dev
https://golang.org/cl/6604062
2012-10-11 09:24:15 +11:00
Andrew Gerrand
7e196d0822 godoc: fix site for large displays
R=golang-dev, skybrian
CC=golang-dev
https://golang.org/cl/6643062
2012-10-11 09:18:23 +11:00
Rémy Oudompheng
dda1b560ec test: convert tests to run.go whenever possible.
The other tests either need a complex procedure
or are architecture- or OS-dependent.

Update #4139.

R=golang-dev, daniel.morsing, iant
CC=golang-dev
https://golang.org/cl/6618062
2012-10-10 22:35:27 +02:00
Taj Khattra
c12dab2aa6 container/heap: optimization in case heap has many duplicates
benchmark       old ns/op    new ns/op    delta
BenchmarkDup      3075682       609448  -80.18%

R=gri
CC=golang-dev
https://golang.org/cl/6613064
2012-10-10 11:35:57 -07:00
Robert Griesemer
4c9c36e655 C+A: added Taj Khattra (individual CLA)
R=golang-dev, r, bradfitz
CC=golang-dev
https://golang.org/cl/6635061
2012-10-10 11:35:43 -07:00
Shenghou Ma
bf7d229eb8 cmd/go: don't ignore error when 'go clean'
Fixes #4208.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/6635064
2012-10-11 01:34:26 +08:00
Dmitriy Vyukov
be2b95fe3a runtime/debug: fix the test
If source are not available, then the stack looks like:
stack_test.go:40: 	/tmp/gobuilder/linux-amd64-race-72b15c5d6f65/go/src/pkg/runtime/debug/bla-bla-bla/src/pkg/runtime/debug/stack_test.go:15 (0x43fb11)
stack_test.go:40: 	/tmp/gobuilder/linux-amd64-race-72b15c5d6f65/go/src/pkg/runtime/debug/bla-bla-bla/src/pkg/runtime/debug/stack_test.go:18 (0x43fb7a)
stack_test.go:40: 	/tmp/gobuilder/linux-amd64-race-72b15c5d6f65/go/src/pkg/runtime/debug/bla-bla-bla/src/pkg/runtime/debug/stack_test.go:37 (0x43fbf4)
stack_test.go:40: 	/tmp/gobuilder/linux-amd64-race-72b15c5d6f65/go/src/pkg/testing/bla-bla-bla/src/pkg/testing/testing.go:301 (0x43b5ba)
stack_test.go:40: 	/tmp/gobuilder/linux-amd64-race-72b15c5d6f65/go/src/pkg/runtime/bla-bla-bla/src/pkg/runtime/proc.c:276 (0x410670)
stack_test.go:40:
which is 6 lines.

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/6637060
2012-10-10 20:49:18 +04:00
Uriel Mangado
df7b720708 codereview.py: Fix crash on auth error handling.
In recent Python versions .reason is a read-only property that simply gives you the msg value.

Fixes #4024

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/6545052
2012-10-11 00:23:53 +08:00
Dmitriy Vyukov
21b2ce724a cmd/gc: fix compiler crash during race instrumentation
The compiler is crashing on the following code:

type TypeID int
func (t *TypeID) encodeType(x int) (tt TypeID, err error) {
        switch x {
        case 0:
                return t.encodeType(x * x)
        }
        return 0, nil
}
The pass marks "return struct" {tt TypeID, err error} as used,
and this causes internal check failure.
I've added the test to:
https://golang.org/cl/6525052/diff/7020/src/pkg/runtime/race/regression_test.go

R=golang-dev, minux.ma, rsc
CC=golang-dev
https://golang.org/cl/6611049
2012-10-10 18:09:23 +04:00
Dmitriy Vyukov
27e93fbd00 runtime: fix race detector handling of stackalloc()
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6632051
2012-10-10 18:06:29 +04:00
Rob Pike
f04ae1373e spec: clarify defer semantics
It's already there but only in the "for instance" and so not
clear enough: deferred functions run after
the result parameters are updated.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6631058
2012-10-10 13:29:50 +11:00
Andrew Gerrand
c91538f9c9 A+C: change Sergio Correia's email address
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6631059
2012-10-10 13:11:06 +11:00
Andrew Gerrand
749a445ba0 bytes: fix tests and fix build
R=golang-dev, edsrzf
CC=golang-dev
https://golang.org/cl/6633051
2012-10-10 11:59:39 +11:00
Andrew Gerrand
8438641629 godoc: add dropdown playground to nav bar
R=gri, dsymonds, skybrian
CC=golang-dev
https://golang.org/cl/6631057
2012-10-10 11:17:47 +11:00
Andrew Gerrand
e7c222cada bytes: make examples work in playground
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6633050
2012-10-10 11:15:41 +11:00
Robert Griesemer
241b23606c go/printer: idempotent comment formatting
Also:

- Refactored testing framework to permit easier
idempotency testing.

- Applied gofmt -w src misc

This CL depends on CL 6639044 being applied first.

Formatting is not idempotent for all files: In those
files the comment position has changed (due to missing
precise location information) and/or the comment formatting
cannot/is not aware of independent code re-formatting.
In general it is very hard to make format idempotent when
running it in one pass only. Leaving that aside for now.

Fixes #1835.

R=r, rsc
CC=golang-dev
https://golang.org/cl/6624051
2012-10-09 17:08:09 -07:00
Robert Griesemer
af79568fde gofmt: apply gofmt -w -s src misc
Preparation for forthcoming CL 6624051: Will make it
easier to see if/what changes are incurred by it.

The alignment changes in this CL are due to CL 6610051
(fix to alignment heuristic) where it appears that an
old version of gofmt was run (and thus the correct
alignment updates were not done).

R=r
CC=golang-dev
https://golang.org/cl/6639044
2012-10-09 17:01:28 -07:00
Ian Lance Taylor
32316bba5b cmd/ld: add -B option to set build ID
Background on build ID:
http://fedoraproject.org/wiki/RolandMcGrath/BuildID

R=rsc
CC=golang-dev
https://golang.org/cl/6625072
2012-10-09 15:29:43 -07:00
Brad Fitzpatrick
dfc7304d32 net/http: fix name of result parameter in a comment
R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/6632053
2012-10-09 11:16:35 -07:00
Shenghou Ma
24ab448c69 misc/cgo/test: add -ldl to LDFLAGS on Linux, ignore issue4029 on windows (fix build)
R=golang-dev
CC=golang-dev
https://golang.org/cl/6631054
2012-10-10 01:30:34 +08:00
Adam Langley
7e90f7b4ab crypto/tls: fix NPN extension parsing.
I typoed the code and tried to parse all the way to the end of the
message. Therefore it fails when NPN is not the last extension in the
ServerHello.

Fixes #4088.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6637052
2012-10-09 13:25:47 -04:00
Dmitriy Vyukov
49a5c28a18 io/ioutil: fix data race on rand
Fixes #4212.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6641050
2012-10-09 21:08:53 +04:00
Shenghou Ma
d901808869 cmd/5l: generate FreeBSD compatible ELF
1. correctly initialize .plt.got entries (point to the 1st entry)
2. add section .rel.plt (FreeBSD insists PLT relocs to be there)
3. put relocs of .got.plt into .rel.plt
4. set ELFOSABI_FREEBSD in ELF header

R=rsc
CC=golang-dev
https://golang.org/cl/6643050
2012-10-10 01:02:49 +08:00
Shenghou Ma
fa563ae82e cmd/ld, cmd/6l, cmd/8l: sort exported dynamic symbols for Darwin
Also corrected cmd/8l's .dynsym handling (differentiate between exported symbols and imported symbols)

        Fixes #4029.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6620075
2012-10-10 00:55:48 +08:00
Dmitriy Vyukov
cffbfaeb18 race: syscall changes
This is a part of a bigger change that adds data race detection feature:
https://golang.org/cl/6456044
The purpose of this patch is to provide coarse-grained synchronization
between all Read() and Write() calls.

R=rsc, bradfitz, alex.brainman
CC=golang-dev
https://golang.org/cl/6610064
2012-10-09 20:51:58 +04:00
Russ Cox
f76f120324 cmd/ld: use 64-bit alignment for large data and bss objects
Check for specific, important misalignment in garbage collector.
Not a complete fix for issue 599 but an important workaround.

Update #599.

R=golang-dev, iant, dvyukov
CC=golang-dev
https://golang.org/cl/6641049
2012-10-09 12:50:06 -04:00
Dmitriy Vyukov
3aae5a0e7e cmd/fix: disable reflect test under race detector (very slow)
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6642045
2012-10-09 20:21:39 +04:00
Dmitriy Vyukov
6cab8aa4e4 cmd/go: fix handling of build tags for standard commands
Otherwise if I add '+build !race' to e.g. src/cmd/fix/reflect_test.go,
it does not work.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6642044
2012-10-09 19:54:14 +04:00
Dmitriy Vyukov
aa97c88ecb encoding/gob: add test case for issue 4214.
See http://code.google.com/p/go/issues/detail?id=4214

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6619068
2012-10-09 09:55:57 +04:00
Rob Pike
e855fcc307 encoding/gob: fix data race in Register
Fixes #4214.

R=golang-dev, dsymonds, bradfitz
CC=golang-dev
https://golang.org/cl/6637047
2012-10-09 11:56:38 +11:00
Robin Eklind
e9f0fc8823 debug/pe: support PE files which contain no symbol table (if NumberOfSymbols is equal to 0 in the IMAGE_FILE_HEADER structure).
No longer assume that e_lfanew (in the IMAGE_DOS_HEADER strcuture) is always one byte. It is now regarded as a 4 byte uint32.

Fixes #4177.

R=golang-dev, alex.brainman, dave, minux.ma
CC=golang-dev
https://golang.org/cl/6587048
2012-10-09 11:15:53 +11:00