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Commit Graph

18606 Commits

Author SHA1 Message Date
Rob Pike
71377d3cd3 cmd/ld: document the -w flag, which disables DWARF generation
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/52360044
2014-01-14 15:34:27 -08:00
Rob Pike
227fe5f64e spec: tighten the wording around . imports
Make it clear that if you do a . import, you cannot use a qualified identifier.

R=gri
CC=golang-codereviews
https://golang.org/cl/52390043
2014-01-14 15:16:01 -08:00
Rob Pike
591265fcb4 reflect: better document the tri-state for TryRecv
R=rsc, iant
CC=golang-codereviews
https://golang.org/cl/52360043
2014-01-14 15:04:16 -08:00
Keith Randall
8454e2c287 runtime: Change size of map iter offset so 32-bit version compiles cleanly.
R=golang-codereviews, minux.ma
CC=golang-codereviews
https://golang.org/cl/52310043
2014-01-14 13:46:22 -08:00
Michael Kelly
26cc10289f net/http: escape contents of the directory indexes generated by FileServer
Previously, filenames containing special characters could:
      1) Escape the <a> tag, with a file called something like: ">foo
      2) Break the links in the index by prematurely ending the path portion
      of the url, with a file called: foo?bar

      In order to avoid a forbidden dependency on the html package, I'm
      using htmlReplacer from net/http/server.go, which is equivalent to
      html.EscapeString.

      This change also expands fakeFile.Readdir to better emulate
os.File.Readdir.

R=golang-codereviews, rsc, gobot, bradfitz, josharian, mikioh.mikioh
CC=golang-codereviews
https://golang.org/cl/37440043
2014-01-14 12:55:12 -08:00
Josh Bleecher Snyder
3be4d95731 runtime: change map iteration randomization to use intra-bucket offset
Map iteration previously started from a random bucket, but walked each
bucket from the beginning. Now, iteration always starts from the first
bucket and walks each bucket starting at a random offset. For
performance, the random offset is selected at the start of iteration
and reused for each bucket.

Iteration over a map with 8 or fewer elements--a single bucket--will
now be non-deterministic. There will now be only 8 different possible
map iterations.

Significant benchmark changes, on my OS X laptop (rough but consistent):

benchmark                              old ns/op     new ns/op     delta
BenchmarkMapIter                       128           121           -5.47%
BenchmarkMapIterEmpty                  4.26          4.45          +4.46%
BenchmarkNewEmptyMap                   114           111           -2.63%

Fixes #6719.

R=khr, bradfitz
CC=golang-codereviews
https://golang.org/cl/47370043
2014-01-14 12:54:05 -08:00
Brad Fitzpatrick
1e2b13355f undo CL 47560044 / 40a37153a550
Still work to do. See http://golang.org/issue/7125

««« original CL description
net/http/cookiejar: document format of domain in PublicSuffix

Document what values a PublicSuffixList must accept as
a domain in a call to PublicSuffix.

R=bradfitz, nigeltao
CC=golang-codereviews
https://golang.org/cl/47560044

»»»

R=golang-codereviews, minux.ma
CC=golang-codereviews
https://golang.org/cl/51770044
2014-01-14 12:53:21 -08:00
Brad Fitzpatrick
6430a6d90e C: add Michael Kelly (Google CLA)
R=golang-codereviews, iant, mjk
CC=golang-codereviews
https://golang.org/cl/52220043
2014-01-14 12:53:06 -08:00
Brad Fitzpatrick
c0eb88029e doc: add cmd/gofmt entry to go1.3.txt
R=golang-codereviews, minux.ma
CC=golang-codereviews
https://golang.org/cl/52240043
2014-01-14 12:27:51 -08:00
Brad Fitzpatrick
014f3dcc83 cmd/gofmt: remove -tabwidth and -tabs flags
Having these flags misleads people into thinking they're acceptable
for code that "must be gofmt'd".

If an organization wishes to use gofmt internally with
different settings, they can fork gofmt trivially. But "gofmt"
as used by the community with open source Go code should not
support these old knobs.

Also removes the -comments flag.

Fixes #7101

R=r, gri
CC=golang-codereviews
https://golang.org/cl/52170043
2014-01-14 11:10:56 -08:00
Brad Fitzpatrick
077faf2851 api: update next.txt
Now with more syscall!

R=golang-codereviews, minux.ma
CC=golang-codereviews
https://golang.org/cl/52150043
2014-01-14 10:18:43 -08:00
Brad Fitzpatrick
9b0560ea2f net/http: fix another data race when sharing Request.Body
Fix another issue (similar to Issue 6995) where there was a
data race when sharing a server handler's Request.Body with
another goroutine that out-lived the Handler's goroutine.

In some cases we were not closing the incoming Request.Body
(which would've required reading it until the end) if we
thought it we thought we were going to be forcibly closing the
underlying net.Conn later anyway. But that optimization
largely moved to the transfer.go *body later, and locking was
added to *body which then detected read-after-close, so now
calling the (*body).Close always is both cheap and correct.

No new test because TestTransportAndServerSharedBodyRace caught it,
albeit only sometimes. Running:

while ./http.test -test.cpu=8 -test.run=TestTransportAndServerSharedBodyRace; do true; done

... would reliably cause a race before, but not now.

Update #6995
Fixes #7092

R=golang-codereviews, khr
CC=golang-codereviews
https://golang.org/cl/51700043
2014-01-14 09:46:40 -08:00
Russ Cox
334056a7bc cmd/gc: return canonical Node* from temp
For historical reasons, temp was returning a copy
of the created Node*, not the original Node*.
This meant that if analysis recorded information in the
returned node (for example, n->addrtaken = 1), the
analysis would not show up on the original Node*, the
one kept in fn->dcl and consulted during liveness
bitmap creation.

Correct this, and watch for it when setting addrtaken.

Fixes #7083.

R=khr, dave, minux.ma
CC=golang-codereviews
https://golang.org/cl/51010045
2014-01-14 10:43:13 -05:00
Russ Cox
8bd8cede03 cmd/gc: add -live flag for debugging liveness maps
R=khr
CC=golang-codereviews
https://golang.org/cl/51820043
2014-01-14 10:40:16 -05:00
Russ Cox
3ec60c253d runtime: emit collection stacks in GODEBUG=allocfreetrace mode
R=khr, dvyukov
CC=golang-codereviews
https://golang.org/cl/51830043
2014-01-14 10:39:50 -05:00
Dmitriy Vyukov
e0dcf73d61 runtime: fix comment
Void function can not return false.

R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/52000043
2014-01-14 12:58:13 +04:00
Alex Brainman
fa6ffc6c9b cmd/api: ensure GOPATH always points to the correct go.tools
R=golang-codereviews, dave, bradfitz
CC=golang-codereviews
https://golang.org/cl/51000043
2014-01-14 16:56:22 +11:00
Keith Randall
cefe6ac9a1 runtime/pprof: fix flaky TestCPUProfileMultithreaded test
It's too sensitive.

Fixes bug 7095

R=golang-codereviews, iant, minux.ma, rsc
CC=golang-codereviews
https://golang.org/cl/50470043
2014-01-13 21:18:47 -08:00
Russ Cox
6e8b4920c1 cmd/link: fix build
The golden file for link.hello.darwin.amd64
was a little ahead of the checked-in code.

R=iant
TBR=iant
CC=golang-codereviews
https://golang.org/cl/51870043
2014-01-13 23:20:53 -05:00
Russ Cox
7dcc652f10 cmd/link: implement dead code removal
R=iant
CC=golang-codereviews
https://golang.org/cl/51470043
2014-01-13 23:08:10 -05:00
Russ Cox
7cecac3cbb cmd/link: implement and test automatic symbols
Related changes included in this CL:

 - Add explicit start symbol to Prog.
 - Add omitRuntime bool to Prog.
 - Introduce p.Packages[""] to hold automatic symbols
 - Add SymOrder to Prog to preserve symbol order.
 - Add layout test (and fix bug that was putting everything in text section).

R=iant
CC=golang-codereviews
https://golang.org/cl/51260045
2014-01-13 23:07:57 -05:00
Russ Cox
9c1aa658bf cmd/link: replace golden binary files with hex dumps
The hex dumps will diff better, and I hope they will avoid
a repeat of http://bugs.debian.org/716853.

The CL will probably show the testdata diffs as "binary",
but in fact the binary versions are being replaced by
textual hex dumps (output of hexdump -C).

R=iant
CC=golang-codereviews
https://golang.org/cl/51000044
2014-01-13 23:07:40 -05:00
Mikio Hara
47dc183136 net: fix incorrect internal IPv6 address representation in test
Also fixes a dialgoogle test glitch after issue 6628 fix.

R=golang-codereviews, r
CC=golang-codereviews
https://golang.org/cl/50660044
2014-01-14 07:36:38 +09:00
David du Colombier
1f0ca748c2 os/exec: disable fd check in TestHelperProcess on Plan 9
On Plan 9, we can observe the following open file descriptors:

  0 r  c    0 (000000000000000a   0 00)     0        0 /dev/null
  1 rw |    0 (0000000001df6742   0 00) 65536       54 #|/data1
  2 rw |    0 (0000000001df6782   0 00) 65536        0 #|/data1
  3 rw M 1956 (0000000000d66dd2   0 00)  8192       12 /tmp/333163398
  4 r  c    0 (0000000000000001   0 00)     0      528 /dev/bintime
  5 r  M 1956 (0000000000d66dd1 854 00)  8192        0 /tmp/go-build843954301/os/exec/_test/exec.test
  6 r  M 1956 (0000000000d66dd1 854 00)  8192        0 /tmp/go-build843954301/os/exec/_test/exec.test
  7 r  M 1956 (0000000000d66dd1 854 00)  8192        0 /tmp/go-build843954301/os/exec/_test/exec.test
  8 r  M 1956 (0000000000d66dd1 854 00)  8192        0 /tmp/go-build843954301/os/exec/_test/exec.test
  9 r  M 1956 (0000000000d66dd1 854 00)  8192        0 /tmp/go-build843954301/os/exec/_test/exec.test
 10 r  M 1956 (0000000000d66dd1 854 00)  8192        0 /tmp/go-build843954301/os/exec/_test/exec.test
 11 r  c    0 (000000000000000f   0 00)     0       32 /dev/random
 12 r  M 1956 (0000000000d66dd1 854 00)  8192        0 /tmp/go-build843954301/os/exec/_test/exec.test
 13 r  c    0 (000000000000000a   0 00)     0        0 /dev/null
 14 rw |    0 (0000000001df6801   0 00) 65536        0 #|/data
 15 rw |    0 (0000000001df6802   0 00) 65536     1275 #|/data1

R=rsc, bradfitz, aram
CC=golang-codereviews
https://golang.org/cl/51420044
2014-01-13 23:03:22 +01:00
Michael Gehring
5ce3e6a1ef syscall: add syscall.Termios on freebsd/{386,amd64}
R=golang-codereviews, bradfitz, mg
CC=golang-codereviews
https://golang.org/cl/51580044
2014-01-13 13:57:38 -08:00
Brad Fitzpatrick
a6a2707bf2 C+A: add email alias for Michael Gehring
R=golang-codereviews, gnirheg.leahcim
CC=golang-codereviews
https://golang.org/cl/51670043
2014-01-13 13:57:06 -08:00
Brad Fitzpatrick
9c43033977 net/http: clarify semantics of File methods
There were no docs explaining the meaning of Readdir's count
argument, for instance. Clarify that these mean the same as
the methods on *os.File.

R=golang-codereviews, minux.ma
CC=golang-codereviews
https://golang.org/cl/51630043
2014-01-13 13:52:06 -08:00
Robert Griesemer
11740e19a4 go/scanner: minimal non-terminated literals
Consume as little as possible input when encountering
non-terminated rune, string, and raw string literals.
The old code consumed at least one extra character
which could lead to worse error recovery when parsing
erroneous sources.

Also made error messages in those cases more consistent.

Fixes #7091.

R=adonovan
CC=golang-codereviews
https://golang.org/cl/50630043
2014-01-13 11:10:45 -08:00
Russ Cox
a2edc469a0 runtime: remove redundant 0x prefix in error print
%x already adds the prefix unconditionally

R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/51550043
2014-01-13 11:39:04 -05:00
David du Colombier
6f97ef28af os: disable TestReaddirStatFailures on Plan 9
R=rsc, dave, aram, jeremyjackins, lucio.dere
CC=golang-codereviews, jas
https://golang.org/cl/50980043
2014-01-13 13:24:59 +01:00
Joel Sing
f40dd8f1d9 syscall: include mmap constants in openbsd zerror* files
Include the <sys/mman.h> header for OpenBSD mkerrors.sh. This brings
in constants used with madvise(2), mmap(2), msync(2) and mlockall(2).

Fixes #4929

R=golang-codereviews, minux.ma
CC=golang-codereviews
https://golang.org/cl/50930043
2014-01-13 11:25:48 +11:00
Joel Sing
3233a12f61 syscall: remove getsockname workaround for openbsd
Remove the getsockname workaround for unix domain sockets on OpenBSD.
This was fixed in OpenBSD 5.2 and we now have a minimum requirement
for OpenBSD 5.4-current.

R=golang-codereviews, minux.ma
CC=golang-codereviews
https://golang.org/cl/50960043
2014-01-13 11:24:56 +11:00
Joel Sing
073bd0ba24 runtime/pprof: enable profiling test on openbsd
Profiling of multithreaded applications works correctly on OpenBSD
5.4-current, so enable the profiling test.

R=golang-codereviews, minux.ma
CC=golang-codereviews
https://golang.org/cl/50940043
2014-01-13 11:24:08 +11:00
Alex Brainman
c7ef348bad net: ignore some errors in windows Accept
Fixes #6987

R=golang-codereviews, dvyukov
CC=golang-codereviews
https://golang.org/cl/49490043
2014-01-12 12:20:16 +11:00
Jeff Sickel
830bb3797e net: add plan9 to TestDialTimeout
=== RUN TestDialTimeout
     --- PASS: TestDialTimeout (0.21 seconds)

R=golang-codereviews, bradfitz, 0intro
CC=golang-codereviews, rsc
https://golang.org/cl/49710050
2014-01-11 18:58:03 +01:00
Joel Sing
8aaca37383 api: update except.txt and next.txt to reflect openbsd system ABI break
Update #7049

R=golang-codereviews, minux.ma, mikioh.mikioh
CC=golang-codereviews
https://golang.org/cl/49470052
2014-01-11 20:16:39 +11:00
Joel Sing
471763f657 runtime, syscall: update for openbsd system ABI break
Update Go so that it continues to work past the OpenBSD system ABI
break, with 64-bit time_t:

  http://www.openbsd.org/faq/current.html#20130813

Note: this makes OpenBSD 5.5 (currently 5.4-current) the minimum
supported release for Go.

Fixes #7049.

R=golang-codereviews, mikioh.mikioh
CC=golang-codereviews
https://golang.org/cl/13368046
2014-01-11 19:00:32 +11:00
Brad Fitzpatrick
5f341df90d database/sql: fix test on 32-bit
R=golang-codereviews
TBR=golang-dev
CC=golang-codereviews
https://golang.org/cl/49920047
2014-01-10 12:30:23 -08:00
Brad Fitzpatrick
258ed3f226 database/sql: avoiding fmt.Sprintf while scanning, avoid allocs with RawBytes
A user reported heavy contention on fmt's printer cache. Avoid
fmt.Sprint. We have to do reflection anyway, and there was
already an asString function to use strconv, so use it.

This CL also eliminates a redundant allocation + copy when
scanning into *[]byte (avoiding the intermediate string)
and avoids an extra alloc when assigning to a caller's RawBytes
(trying to reuse the caller's memory).

Fixes #7086

R=golang-codereviews, nightlyone
CC=golang-codereviews
https://golang.org/cl/50240044
2014-01-10 12:19:36 -08:00
Adam Langley
3b8dfc32b3 A+C: Gautham Thambidorai (individual CLA)
Generated by addca.

R=gobot
CC=golang-codereviews
https://golang.org/cl/50500043
2014-01-10 13:46:42 -05:00
Dmitriy Vyukov
7f62d08777 fmt: make benchmarks parallel
This seems to be the best target to benchmark sync.Pool changes.

This is resend of cl/49910043 which was LGTMed by
TBR=bradfitz

R=golang-codereviews
CC=golang-codereviews
https://golang.org/cl/50140045
2014-01-10 13:51:11 +04:00
Keith Randall
bb7cd9659b liblink: fix comments. Someone was overzealous with search & replace.
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/49160045
2014-01-09 19:46:46 -08:00
Nicholas Katsaros
5277b90ec4 net: add SetKeepAlivePeriod for windows
R=golang-codereviews, alex.brainman, bradfitz, mikioh.mikioh
CC=golang-codereviews
https://golang.org/cl/11393043
2014-01-10 14:33:54 +11:00
Anthony Martin
d155f6a309 liblink: adjust format verbs to avoid collisions
The %S and %N format verbs are used by cmd/gc to
represent Sym and Node structures, respectively.

In liblink, these two verbs are used only by the %D
format routine and never referenced externally.

This change will allow us to delete the duplicated
code for the %A, %D, %P, and %R format routines in
both the compiler and linker.

R=golang-codereviews, rsc
CC=golang-codereviews
https://golang.org/cl/49720043
2014-01-09 19:01:08 -08:00
Rémy Oudompheng
f739dae7db cmd/gc: mark OGOTO as a statement for formatters.
Nodes of goto statements were corrupted when written
to export data.

Fixes #7023.

R=rsc, dave, minux.ma
CC=golang-codereviews
https://golang.org/cl/46190043
2014-01-10 01:33:24 +01:00
Russ Cox
8449863d31 cmd/link: Mach-O (OS X) file formatter
See CL 48870044 for basic structure.

R=iant
CC=golang-codereviews
https://golang.org/cl/48910043
2014-01-09 19:29:29 -05:00
Russ Cox
146897b031 cmd/link: intial skeleton of linker written in Go
R=iant
CC=golang-codereviews
https://golang.org/cl/48870044
2014-01-09 19:29:10 -05:00
Brad Fitzpatrick
d6bce32a36 net/http: use TCP keep-alives for ListenAndServe and ListenAndServeTLS
Our default behavior for the common cases shouldn't lead to
leaked TCP connections (e.g. from people closing laptops) when
their Go servers are exposed to the open Internet without a
proxy in front.

Too many users on golang-nuts have learned this the hard way.

No API change. Only ListenAndServe and ListenAndServeTLS are
updated.

R=golang-codereviews, cespare, gobot, rsc, minux.ma
CC=golang-codereviews
https://golang.org/cl/48300043
2014-01-09 15:05:09 -08:00
Ian Lance Taylor
8da8b37674 runtime: fix 32-bit malloc for pointers >= 0x80000000
The spans array is allocated in runtime·mallocinit.  On a
32-bit system the number of entries in the spans array is
MaxArena32 / PageSize, which (2U << 30) / (1 << 12) == (1 << 19).
So we are allocating an array that can hold 19 bits for an
index that can hold 20 bits.  According to the comment in the
function, this is intentional: we only allocate enough spans
(and bitmaps) for a 2G arena, because allocating more would
probably be wasteful.

But since the span index is simply the upper 20 bits of the
memory address, this scheme only works if memory addresses are
limited to the low 2G of memory.  That would be OK if we were
careful to enforce it, but we're not.  What we are careful to
enforce, in functions like runtime·MHeap_SysAlloc, is that we
always return addresses between the heap's arena_start and
arena_start + MaxArena32.

We generally get away with it because we start allocating just
after the program end, so we only run into trouble with
programs that allocate a lot of memory, enough to get past
address 0x80000000.

This changes the code that computes a span index to subtract
arena_start on 32-bit systems just as we currently do on
64-bit systems.

R=golang-codereviews, rsc
CC=golang-codereviews
https://golang.org/cl/49460043
2014-01-09 15:00:00 -08:00
Robert Griesemer
8a089c07ec go/parser: slightly improved error message by adding hint
It's difficult to make this much better w/o much
more effort. This is a rare case and probably not
worth it.

Fixes #6052.

R=golang-codereviews, bradfitz, adonovan
CC=golang-codereviews
https://golang.org/cl/49740045
2014-01-09 14:51:23 -08:00