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Commit Graph

24952 Commits

Author SHA1 Message Date
Adam Langley
8ee0261865 crypto/x509: make verification of an empty certificate consistent across platforms.
Platform-specific verification needs the ASN.1 contents of a certificate
but that might not be provided if the Certificate was not created by
ParseCertificate. In order to avoid a panic on Windows, and to make
behaviour consistent across platforms, this change causes verification
to fail when the ASN.1 contents of a certificate are not available.

Fixes #12184

Change-Id: I4395d74934e675c179eaf4cded1094a756e478bb
Reviewed-on: https://go-review.googlesource.com/14053
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-30 00:51:51 +00:00
Adam Langley
5d5889c4d9 math/big: correct documentation for ProbablyPrime.
As akalin points out in the bug, the comment previously claimed that the
probability that the input is prime given that the function returned
true is 1 - ¼ⁿ. But that's wrong: the correct statement is that the
probability of the function returning false given a composite input is
1 - ¼ⁿ.

This is not nearly as helpful, but at least it's truthful. A number of
other (correct) expressions are suggested on the bug, but I think that
the simplier one is preferable.

This change also notes that the function is not suitable for
adversarial inputs since it's deterministic.

Fixes #12274.

Change-Id: I6a0871d103b126ee5a5a922a8c6993055cb7b1ed
Reviewed-on: https://go-review.googlesource.com/14052
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-30 00:39:00 +00:00
Adam Langley
be16001187 crypto/tls: better error messages when PEM inputs are switched.
This change causes the types of skipped PEM blocks to be recorded when
no certificate or private-key data is found in a PEM input. This allows
for better error messages to be return in the case of common errors like
switching the certifiate and key inputs to X509KeyPair.

Fixes #11092

Change-Id: Ifc155a811cdcddd93b5787fe16a84c972011f2f7
Reviewed-on: https://go-review.googlesource.com/14054
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-30 00:27:46 +00:00
Robert Griesemer
7e1d1f899c go/types: move gotype command into this directory
This is a copy of x/tools/cmd/gotype/gotype.go with the corresponding
x/tools/cmd/gotype/doc.go prepended and including a build tag (ignore).

This way, go/types can be built unaffected. If we need the gotype command,
it is trivially built in the go/types directory with: go build gotype.go .

Fixes #12303.

Change-Id: I2d792fcb39719cc5cc300f657e4735901cd20faa
Reviewed-on: https://go-review.googlesource.com/15152
Reviewed-by: Rob Pike <r@golang.org>
2015-09-29 23:31:57 +00:00
Robert Griesemer
bb6be3ab88 go/types: clarify doc string for types.Check
For #12787.

Change-Id: I921d01c8d7d97f3453b25e6d2241a43c5d64f53b
Reviewed-on: https://go-review.googlesource.com/15150
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-09-29 21:19:22 +00:00
Russ Cox
0e5b4eb07b cmd/dist: build packages in parallel, make code more Go-like
(Changed modified by bradfitz from original rsc version)

Change-Id: I8ea40044c325f333a13d48b59b4795b02c579533
Reviewed-on: https://go-review.googlesource.com/14026
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-29 16:30:15 +00:00
Håvard Haugen
c73df92be6 cmd/compile/internal/gc: remove stringsCompare
Inlined the last occurrence of stringsCompare into exprcmp.

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

Change-Id: I8fd99e3fbffc84283cc269368595cba950533066
Reviewed-on: https://go-review.googlesource.com/14872
Reviewed-by: Dave Cheney <dave@cheney.net>
Run-TryBot: Dave Cheney <dave@cheney.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-29 07:13:30 +00:00
Rob Pike
0722a5e718 cmd/doc: fix pretty printing of paths
The code to strip GOROOT and GOPATH had a bug: it assumed there
were bytes after the GOROOT prefix but there might not be.
Fix this and other issues by taking care the prefix is really a
file name prefix for the path, not just a string prefix, and
handle the case where GOROOT==path.

Change-Id: I8066865fd05f938bb6dbf3bb8ab1fc58e5cf6bb5
Reviewed-on: https://go-review.googlesource.com/15112
Run-TryBot: Rob Pike <r@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-29 02:18:57 +00:00
Robert Griesemer
3b9e8bb7f2 math/big: more documentation
Good enough for now.

Fixes #11241.

Change-Id: Ieb50809f104d20bcbe14daecac503f72486bec92
Reviewed-on: https://go-review.googlesource.com/15111
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-09-29 00:23:51 +00:00
Robert Griesemer
18563f8ab4 math/big: clean up *Int encoding tests
- more uniform naming
- test sign more deliberately
- remove superfluous test (JSON encoder always uses the JSON marshaler if present)

Change-Id: I37b1e367c01fc8bae1e06adbdb72dd366c08d5ce
Reviewed-on: https://go-review.googlesource.com/15110
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-09-29 00:23:31 +00:00
Robert Griesemer
38c5fd5cf8 math/big: implement Float.Text(Un)Marshaler
Fixes #12256.

Change-Id: Ie4a3337996da5c060b27530b076048ffead85f3b
Reviewed-on: https://go-review.googlesource.com/15040
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-09-29 00:21:45 +00:00
Andrew Gerrand
02e8ec008c text/template, html/template: fix block example name
Change-Id: I004a43842430201296363a9745480bee94920041
Reviewed-on: https://go-review.googlesource.com/15084
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-29 00:17:40 +00:00
Andrew Gerrand
652d2386e9 doc: add text/template blocks and redefinition to go1.6.txt
Change-Id: Ide82ac98dc7cb1035ceb9d461ed95af899f8f983
Reviewed-on: https://go-review.googlesource.com/15081
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-28 23:55:27 +00:00
Robert Griesemer
cbe8a3531a encoding/json: document that encoding.TextMarshaler is used if no (json) Marshaler is present
Change-Id: I63da54832548c325e47dc54aaa5b5112e1f3b3ba
Reviewed-on: https://go-review.googlesource.com/15048
Reviewed-by: Rob Pike <r@golang.org>
2015-09-28 18:08:18 +00:00
Robert Griesemer
3d4cd144cc math/big: improved documentation
- moved existing package documentation from nat.go to doc.go
- expanded on it

For #11241.

Change-Id: Ie75a2b0178a8904a4154307a1f5080d7efc5489a
Reviewed-on: https://go-review.googlesource.com/15042
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-09-28 16:27:52 +00:00
Rob Pike
c978f13a71 cmd/doc: rearrange the newlines to group better
Main change is that the comment for an item no longer has a blank line
before it, so it looks bound to the item it's about.

Motivating example: go doc.io.read changes from

<
func (l *LimitedReader) Read(p []byte) (n int, err error)
func (r *PipeReader) Read(data []byte) (n int, err error)

    Read implements the standard Read interface: it reads data from the pipe,
    blocking until a writer arrives or the write end is closed. If the write end
    is closed with an error, that error is returned as err; otherwise err is
    EOF.
func (s *SectionReader) Read(p []byte) (n int, err error)
>

to

<
func (l *LimitedReader) Read(p []byte) (n int, err error)
func (r *PipeReader) Read(data []byte) (n int, err error)
    Read implements the standard Read interface: it reads data from the pipe,
    blocking until a writer arrives or the write end is closed. If the write end
    is closed with an error, that error is returned as err; otherwise err is
    EOF.

func (s *SectionReader) Read(p []byte) (n int, err error)
>

Now the comment about PipeReader.Read doesn't look like it's about
SectionReader.

Based on a suggestion by dsnet@, a slight tweak from a CL he suggested
and abandoned.

Fixes #12756,

Change-Id: Iaf60ee9ae7f644c83c32d5e130acab0312b0c926
Reviewed-on: https://go-review.googlesource.com/14999
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-28 16:27:33 +00:00
Andrew Gerrand
12dfc3bee4 text/template, html/template: add block keyword and permit template redefinition
This change adds a new "block" keyword that permits the definition
of templates inline inside existing templates, and loosens the
restriction on template redefinition. Templates may now be redefined,
but in the html/template package they may only be redefined before
the template is executed (and therefore escaped).

The intention is that such inline templates can be redefined by
subsequent template definitions, permitting a kind of template
"inheritance" or "overlay". (See the example for details.)

Fixes #3812

Change-Id: I733cb5332c1c201c235f759cc64333462e70dc27
Reviewed-on: https://go-review.googlesource.com/14005
Reviewed-by: Rob Pike <r@golang.org>
2015-09-28 06:01:30 +00:00
Ian Lance Taylor
09c6d13ac2 cmd/cgo: only declare real function in gccgo exported header file
When exporting a function using gccgo, we generate two functions: a Go
function with a leading Cgoexp_ prefix, and a C function that calls the
Go function.  The Go function has a name that can not be represented in
C, so the C code needs a declaration with an __asm__ qualifier giving
the name of the Go function.

Before this CL we put that declaration in the exported header file.
Because code would sometimes #include "_cgo_export.h", we added a macro
definition for the C function giving it the name of the declaration.  We
then added a macro undefine in the actual C code, so that we could
declare the C function we wanted.

This rounadabout process worked OK until we started exporting the header
file for use with -buildmode=c-archive and c-shared.  Doing that caused
the code to see the define and thus call the Go function rather than the
C function.  That often works fine, but the C function calls
_cgo_wait_runtime_init_done before calling the Go function, and that
sometimes matters.  This didn't show up in tests because we don't test
using gccgo.  That is something we should fix, but not now.

Fix that by simplifying the code to declare the C function in the header
file as one would expect, and move the __asm__ declaration to the C
code.

Change-Id: I33547e028152ff98e332630994b4f33285feec32
Reviewed-on: https://go-review.googlesource.com/15043
Reviewed-by: Minux Ma <minux@golang.org>
2015-09-28 04:37:31 +00:00
Joel Sing
82a9d90eda tests/fixedbugs: make test for issue11656 run known instruction
As detailed in #11910, the current implementation attempts to execute an area
of memory with unknown content. If the memory is executable, the result is
unpredictable - instead, make the test deterministic by attempting to execute
an instruction that is known to trigger a trap on the given architecture.

The new implementation is written by iant@ and provided via #11910.

Update issue #11910

Change-Id: Ia698c36e0dd98a9d9d16a701f60f6748c6faf896
Reviewed-on: https://go-review.googlesource.com/15058
Run-TryBot: Joel Sing <jsing@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-28 04:23:33 +00:00
Didier Spezia
b7fa4f27ba net/http/fcgi: fix panic with malformed params record
As stated in FastCGI specifications:

FastCGI transmits a name-value pair as the length of the name,
followed by the length of the value, followed by the name,
followed by the value.

The current implementation trusts the name and value length
provided in the record, leading to a panic if the record
is malformed.

Added an explicit check on the lengths.

Test case and fix suggested by diogin@gmail.com (Jingcheng Zhang)

Fixes #11824

Change-Id: I883a1982ea46465e1fb02e0e02b6a4df9e529ae4
Reviewed-on: https://go-review.googlesource.com/15015
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-27 06:57:03 +00:00
Joel Sing
c4689579c0 cmd/go: Skip note reading test with linkmode external on openbsd/arm
openbsd/arm does not support external linking - skip the note reading test that
uses linkmode external on this platform. While here, cleanup the code and
consistently use t.Skipf for all platforms that cannot run this test.

Change-Id: I64f0d9e038bc4c993c3d843fc069a0b723a924d6
Reviewed-on: https://go-review.googlesource.com/15054
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-27 01:04:59 +00:00
Robert Griesemer
59129c6a93 math/big: remove some string conversions in Int encoding
Change-Id: I1180aa3d30fb8563c8e6ecefeb3296af0a88f5a6
Reviewed-on: https://go-review.googlesource.com/14998
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-09-25 22:25:52 +00:00
Robert Griesemer
7fa5a11ea1 math/big: move Int/Rat gob/json/xml functionality in separate files
Like int/rat/float conversions, move this functionality into separate
implementation and test files.

No implementation changes besides the move.

Change-Id: If19c45f5a72a57b95cbce2329724693ae5a4807d
Reviewed-on: https://go-review.googlesource.com/14997
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-09-25 22:25:36 +00:00
Robert Griesemer
e937eeeccd math/big: removed more unnecessary string conversions
- renamed (nat) itoa to utoa (since that's what it is)
- added (nat) itoa that takes a sign parameter; this helps removing a few string copies
- used buffers instead of string+ in Rat conversions

Change-Id: I6b37a6b39557ae311cafdfe5c4a26e9246bde1a9
Reviewed-on: https://go-review.googlesource.com/14995
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-09-25 22:25:12 +00:00
Robert Griesemer
8d701f092d math/big: implement Int.Text, Int.Append
This makes the Int conversion routines match the respective strconv
and big.Float conversion routines.

Change-Id: I5cfcda1632ee52fe87c5bb75892bdda76cc3af15
Reviewed-on: https://go-review.googlesource.com/14994
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-09-25 22:24:49 +00:00
Mikio Hara
707b619c3a syscall: fix alignment check for link-layer information on BSD variants
When link-layer information is wrapped with sockaddr_dl, we need to
follow the len field of sockaddr_dl. When link-layer information is
naked, we need to use the length of whole link-layer information.

Fixes #12641.

Change-Id: I4d377f64cbab1760b993fc55c719288616042bbb
Reviewed-on: https://go-review.googlesource.com/14939
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-25 22:00:27 +00:00
Rob Pike
81fada52a6 doc: go1.6.txt: bufio.ErrFinalToken
Change-Id: I2714faa6e8aa7b81a05f0e015b045a57407d808d
Reviewed-on: https://go-review.googlesource.com/14996
Reviewed-by: Rob Pike <r@golang.org>
2015-09-25 21:57:01 +00:00
Rob Pike
ec12754700 bufio: fix scanning with a final empty token.
The Scan function's interface to the split function was not sufficient
to handle an empty final token in a pure function; state was required.
This was ugly.

We introduce a special error value that a split function can return
that signals that this token is OK, but is the last one and scanning
should stop immediately _after_ this token.

The same effect could be achieved using the same trick (a special
error value) and checking for that error after Scan finishes, but it's
a little clumsy. Providing a published sentinel value in bufio is
cleaner and means everyone can use the same trick. The result
is an error-free scan.

Rewrite the test (that was only barely working) to use the value
and be more robust.

Also write a new example showing how to do it.

Fixes #11836

Change-Id: Iaae77d0f95b4a2efa0175ced94d93c66353079e8
Reviewed-on: https://go-review.googlesource.com/14924
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-25 21:46:13 +00:00
Shawn Walker-Salas
dc6df1b070 cmd/go: elide -rpath when not applicable and used via LDFLAGS
Some linker flags should only be applied when performing the final
linking step for a shared library or executable, etc. In other
contexts, they're either invalid, or meaningless to apply (so should
not be specified).

When an external linker is used (either directly by Go or by the
compiler driver used by cgo), -rpath and -rpath-link should only be
specified in the final linking step.  On platforms such as Solaris,
ld(1) will reject its use in any other scenario (such as when linking
relocatable objects).

This change is necessary because Go does not currently offer a way to
specify LDFLAGS based on when they should be applied.

Fixes #12115

Change-Id: If35a18d8eee8ec7ddcca2d4ccd41ab6ffcf93b41
Reviewed-on: https://go-review.googlesource.com/14674
Reviewed-by: Minux Ma <minux@golang.org>
Run-TryBot: Minux Ma <minux@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-25 17:53:00 +00:00
Robert Griesemer
b07a9efa78 math/big: faster string conversion routines
Eliminated unnecessary string conversions throughout and removed
(internal) capability for arbitrary character sets in conversion
routines (functionality was not exported and not used internally).

benchmark                         old ns/op     new ns/op     delta
BenchmarkDecimalConversion-8      198283        187085        -5.65%
BenchmarkStringPiParallel-8       46116         47822         +3.70%
BenchmarkString10Base2-8          216           166           -23.15%
BenchmarkString100Base2-8         886           762           -14.00%
BenchmarkString1000Base2-8        7296          6625          -9.20%
BenchmarkString10000Base2-8       72371         65563         -9.41%
BenchmarkString100000Base2-8      725849        672766        -7.31%
BenchmarkString10Base8-8          160           114           -28.75%
BenchmarkString100Base8-8         398           309           -22.36%
BenchmarkString1000Base8-8        2650          2244          -15.32%
BenchmarkString10000Base8-8       24974         21745         -12.93%
BenchmarkString100000Base8-8      245457        217489        -11.39%
BenchmarkString10Base10-8         337           288           -14.54%
BenchmarkString100Base10-8        1298          1046          -19.41%
BenchmarkString1000Base10-8       6200          5752          -7.23%
BenchmarkString10000Base10-8      24942         22589         -9.43%
BenchmarkString100000Base10-8     8012921       7947152       -0.82%
BenchmarkString10Base16-8         156           107           -31.41%
BenchmarkString100Base16-8        344           255           -25.87%
BenchmarkString1000Base16-8       2067          1705          -17.51%
BenchmarkString10000Base16-8      19026         16112         -15.32%
BenchmarkString100000Base16-8     184038        163457        -11.18%

Change-Id: I68bd807529bd9b985f4b6ac2a87764bcc1a7d2f7
Reviewed-on: https://go-review.googlesource.com/14926
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-09-24 23:07:47 +00:00
Rob Pike
007fa019a3 cmd/doc: don't stop after first package if the symbol is not found
The test case is
	go doc rand.Float64
The first package it finds is crypto/rand, which does not have a Float64.
Before this change, cmd/doc would stop there even though math/rand
has the symbol. After this change, we get:

	% go doc rand.Float64
	package rand // import "math/rand"

	func Float64() float64

	    Float64 returns, as a float64, a pseudo-random number in [0.0,1.0) from the
	    default Source.
	%

Another nice consequence is that if a symbol is not found, we might get
a longer list of packages that were examined:

	% go doc rand.Int64
	doc: no symbol Int64 in packages crypto/rand, math/rand
	exit status 1
	%

This change introduces a coroutine to scan the file system so that if
the symbol is not found, the coroutine can deliver another path to try.
(This is darned close to the original motivation for coroutines.)
Paths are delivered on an unbuffered channel so the scanner does
not proceed until candidate paths are needed.

The scanner is attached to a new type, called Dirs, that caches the results
so if we need to scan a second time, we don't walk the file system
again. This is significantly more efficient than the existing code, which
could scan the tree multiple times looking for a package with
the symbol.

Change-Id: I2789505b9992cf04c19376c51ae09af3bc305f7f
Reviewed-on: https://go-review.googlesource.com/14921
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-24 23:04:37 +00:00
Robert Griesemer
3f7c3e01db math/big: fix test for denormalized inputs and enable more test cases
Also: removed unnecessary BUG comment (was fixed).

Change-Id: I8f11fbcb4e30a19ec5a25df742b3e25e2ee7f846
Reviewed-on: https://go-review.googlesource.com/14923
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-09-24 22:23:55 +00:00
Marvin Stenger
44ab8bab1c compile/internal/gc,internal/obj: remove some usages of obj.Bool2int
Passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: Iea8c7bba2401f61ddf2caffc4bece2c293d10f74
Reviewed-on: https://go-review.googlesource.com/14951
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-24 15:39:50 +00:00
Marvin Stenger
550b7ccf77 cmd/link/internal/ld: removed some uses of stringsCompare
Only one use of stringsCompare is left. Cannot simply be replaced by
strings.Compare for bootstrapping reasons I guess.
Moving the function away from util.go to the actual destination data.go
also would not help much. So I left this one unchanged for readability and convenience.

Change-Id: I60d22fec0be8f8c47c80586436f9a550af59194e
Reviewed-on: https://go-review.googlesource.com/14953
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-24 15:05:04 +00:00
Marvin Stenger
ffe743945f cmd/compile/internal/gc: move functions from util.go to lex.go
Moves the functions:
        isSpace(int) bool
        isAlpha(int) bool
        isDigit(int) bool
        isAlnum(int) bool
        plan9quote(string) string

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

Change-Id: I6f946981abb6f29b047ad90d5c117847e826789f
Reviewed-on: https://go-review.googlesource.com/14952
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-24 14:45:28 +00:00
Marvin Stenger
d08f34e744 cmd/compile/internal/gc: convert return values from int to bool
Passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I895350987661c1855803d1594dbab16068f8d1bc
Reviewed-on: https://go-review.googlesource.com/14873
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-24 12:54:22 +00:00
Francisco Claude
8560ead38a multipart: fixes problem parsing mime/multipart of certain lengths
When parsing the multipart data, if the delimiter appears but doesn't
finish with -- or \n or \r\n, it assumes the data can be consumed. This
is incorrect when the peeking buffer finishes with --delimiter-

Fixes #12662

Change-Id: I329556a9a206407c0958289bf7a9009229120bb9
Reviewed-on: https://go-review.googlesource.com/14652
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-24 09:00:52 +00:00
Joe Tsai
d1b1487a64 archive/tar: remove dead code with USTAR path splitting
Convert splitUSTARPath to return a bool rather than an error since
the caller never ever uses the error other than to check if it is
nil. Thus, we can remove errNameTooLong as well.

Also, fold the checking of the length <= fileNameSize and whether
the string is ASCII into the split function itself.

Lastly, remove logic to set the MAGIC since that's already done on
L200. Thus, setting the magic is redundant.

There is no overall logic change.

Updates #12638

Change-Id: I26b6992578199abad723c2a2af7f4fc078af9c17
Reviewed-on: https://go-review.googlesource.com/14723
Reviewed-by: David Symonds <dsymonds@golang.org>
Run-TryBot: David Symonds <dsymonds@golang.org>
2015-09-23 23:55:13 +00:00
Shenghou Ma
2c96e5d2fc cmd/dist: fix build after "go test" argument order change
Change-Id: I332cd4a4b48cbb52d2beeb16c4a24833bb7069d7
Reviewed-on: https://go-review.googlesource.com/14890
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-23 23:10:14 +00:00
Robert Griesemer
c720875b76 spec: minor adjustment of prose in composite literal section
The prose discussing composite literals referred to the composite
literal type with 'LiteralType', denoting the literal type's EBNF
production explicitly. Changed 'LiteralType' to 'literal type' to
remove the literal (no pun intended) connection and instead mean
the underlying type. Seems a simpler and more readable change
than referring to the underlying type everywhere explicitly.

Fixes #12717.

Change-Id: I225df95f9ece2664b19068525ea8bda5ca05a44a
Reviewed-on: https://go-review.googlesource.com/14851
Reviewed-by: Rob Pike <r@golang.org>
2015-09-23 21:26:10 +00:00
Rob Pike
c0486b1293 doc: go1.6.txt: go test flag changes
Change-Id: Icb52589909776fbe195ef2502ec7c0a4b590f350
Reviewed-on: https://go-review.googlesource.com/14859
Reviewed-by: Rob Pike <r@golang.org>
2015-09-23 21:23:34 +00:00
Rob Pike
6acb4d944d cmd/go: fix processing of flags for test binaries.
The usage message says:

	test [-c] [-i] [build and test flags] [packages] [flags for test binary]

but this was not what was implemented. Instead, after packages are named,
flag processing continues, which makes it impossible, for example, to pass
to the binary a flag with the same name as a test flag. This was triggered
by the -v flag in glog.

Consider this test:

package pkg

... imports ...

var v = flag.Int("v", 0, "v flag")

func TestFoo(t *testing.T) {
	if *v != 7 { log.Fatal(*v) }
}

Attempting to run this test with go test pkg -v=7 would give a usage
message. This change allows it. In fact it allows

	go test -v pkg -v=7

The solution is to implement the usage message. One compatibility
issue is that flags after the package name are no longer processed
as test flags, so this no longer works:

	go test foo -cover

One must write

	go test -cover foo

I do not think this is onerous but it must be called out in the
release notes.

Fixes #12177.

Change-Id: Ib9267884b47a6b0c183efa888ec78333272113aa
Reviewed-on: https://go-review.googlesource.com/14826
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-23 21:21:40 +00:00
Robert Griesemer
0befa47ae8 strconv: slightly simplified roundShortest; better comments
Change-Id: If886f15468680f7e1c589873066b4391eb9784b5
Reviewed-on: https://go-review.googlesource.com/14856
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-09-23 21:14:29 +00:00
Robert Griesemer
59a6ba5634 math/big: factored out an internal accessor method (cleanup), added benchmark
Current result of DecimalConversion benchmark (for future reference):

BenchmarkDecimalConversion-8	   10000	    204770 ns/op

Measured on Mac Mini (late 2012) running OS X 10.10.5,
2.3 GHz Intel Core i7, 8 GB 1333 MHz DDR3.

Also: Removed comment suggesting to implement decimal by representing
digits as numbers 0..9 rather than ASCII chars '0'..'9' to avoid
repeated +/-'0' operations. Tried and it appears (per above benchmark)
that the +/-'0' operations are neglibile but the addition conversion
passes around it are not and that it makes things significantly slower.

Change-Id: I6ee033b1172043248093cc5d02abff5fc54c2e7a
Reviewed-on: https://go-review.googlesource.com/14857
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-09-23 20:25:59 +00:00
Shenghou Ma
53c92f95a8 os: document that behavior of Seek on O_APPEND files is not specified
The actual behavior varies across platforms, and due to the inherent
race, we can't do anything better (other than to always return 0).

Fixes #12710.

Change-Id: Icb52f0f1f0a267e0f9f70767cae427f3f0239965
Reviewed-on: https://go-review.googlesource.com/14881
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-23 17:06:02 +00:00
Shenghou Ma
604fbab3f1 runtime: fix incomplete sentence in comment
Fixes #12709.

Change-Id: If5a2536458fcd26d6f003dde1bfc02f86b09fa94
Reviewed-on: https://go-review.googlesource.com/14793
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-23 17:05:39 +00:00
Robert Griesemer
4fc9565ffc math/big: implement negative precision for Float.Append/Text
Enabled all but a handful of disabled Float formatting test cases.

Fixes #10991.

Change-Id: Id18e160e857be2743429a377000e996978015a1a
Reviewed-on: https://go-review.googlesource.com/14850
Reviewed-by: Alan Donovan <adonovan@google.com>
2015-09-23 16:45:38 +00:00
Alex Brainman
d02a4c1d60 runtime: test that timeBeginPeriod succeeds
Change-Id: I5183f767dadb6d24a34d2460d02e97ddbaab129a
Reviewed-on: https://go-review.googlesource.com/12546
Run-TryBot: Minux Ma <minux@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-23 09:01:08 +00:00
Joe Tsai
b0a1f6462f compress/gzip: detect truncated streams
Reader fails to detect truncated streams since calls to io.ReadFull
do not check if the error is io.EOF.

Change-Id: I052cd03161e43fec17e3d328106c40e17923e52b
Reviewed-on: https://go-review.googlesource.com/14832
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-23 08:29:13 +00:00
Joe Tsai
9deb940d24 compress/flate: detect truncated streams
Reader failed to detect truncated streams since calls to
io.ReadFull did not check if the error is io.EOF.

Change-Id: I0634e0d8de1ab04e8f93242c27a9f89e57743e87
Reviewed-on: https://go-review.googlesource.com/14833
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-23 08:28:17 +00:00