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Commit Graph

15632 Commits

Author SHA1 Message Date
Russ Cox
6c1539bb01 runtime: show frame pointer values during throw
Should help if stack overflows start happening again.

Fixes #3582.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/7311098
2013-02-15 14:48:47 -05:00
Russ Cox
c8214c78bd runtime: make return from main wait for active panic
Arguably if this happens the program is buggy anyway,
but letting the panic continue looks better than interrupting it.
Otherwise things like this are possible, and confusing:

$ go run x.go
panic: $ echo $?
0
$

Fixes #3934.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7322083
2013-02-15 14:48:35 -05:00
Russ Cox
2d4164596f cmd/go: reject case-insensitive file name, import collisions
To make sure that Go code will work when moved to a
system with a case-insensitive file system, like OS X or Windows,
reject any package built from files with names differing
only in case, and also any package built from imported
dependencies with names differing only in case.

Fixes #4773.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/7314104
2013-02-15 14:39:39 -05:00
Russ Cox
61e02ee901 spec: clarify when range x does not evaluate x
Fixes #4644.

R=r, adonovan
CC=golang-dev
https://golang.org/cl/7307083
2013-02-15 14:39:28 -05:00
Russ Cox
318309a51f runtime/pprof: adjust reported line numbers to show call sites
This is the same logic used in the standard tracebacks.
The caller pc is the pc after the call, so except in the
fake "call" caused by a panic, back up the pc enough
that the lookup will use the previous instruction.

Fixes #4150.
Fixes #4151.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/7317047
2013-02-15 14:27:16 -05:00
Russ Cox
8a6ff3ab34 runtime: allocate heap metadata at run time
Before, the mheap structure was in the bss,
but it's quite large (today, 256 MB, much of
which is never actually paged in), and it makes
Go binaries run afoul of exec-time bss size
limits on some BSD systems.

Fixes #4447.

R=golang-dev, dave, minux.ma, remyoudompheng, iant
CC=golang-dev
https://golang.org/cl/7307122
2013-02-15 14:27:03 -05:00
Dmitriy Vyukov
f87b7f67b2 runtime: ensure forward progress of runtime.Gosched() for locked goroutines
The removed code leads to the situation when M executes the same locked G again and again.
Fixes #4820.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7310096
2013-02-15 22:22:13 +04:00
Russ Cox
d3d89ae7d2 runtime: check rt_sigaction return values on linux
(If the mask size is wrong the system call fails.)

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/7305097
2013-02-15 13:13:19 -05:00
Russ Cox
2b9787c2f3 encoding/binary: make type error more specific
Right now it says 'invalid type S' for a struct type S.
Instead, say which type inside the struct is the problem.

Fixes #4825.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/7301102
2013-02-15 13:12:28 -05:00
Russ Cox
d47cc872b5 exp/cookiejar: fix windows/386 build
More mysteriously broken tests.

TBR=nigeltao
CC=golang-dev
https://golang.org/cl/7342048
2013-02-15 12:43:28 -05:00
Russ Cox
c7f7bbbf03 runtime: fix build on linux
In addition to the compile failure fixed in signal*.c,
preserving the signal mask led to very strange crashes.
Testing shows that looking for SIG_IGN is all that
matters to get along with nohup, so reintroduce
sigset_zero instead of trying to preserve the signal mask.

TBR=iant
CC=golang-dev
https://golang.org/cl/7323067
2013-02-15 12:18:33 -05:00
Russ Cox
f8f2727ab5 exp/cookiejar: fix windows builder
TBR=nigeltao
CC=golang-dev
https://golang.org/cl/7322084
2013-02-15 11:32:31 -05:00
Russ Cox
f3407f445d runtime: fix running under nohup
There are two ways nohup(1) might be implemented:
it might mask away the signal, or it might set the handler
to SIG_IGN, both of which are inherited across fork+exec.
So two fixes:

* Make sure to preserve the inherited signal mask at
minit instead of clearing it.

* If the SIGHUP handler is SIG_IGN, leave it that way.

Fixes #4491.

R=golang-dev, mikioh.mikioh, iant
CC=golang-dev
https://golang.org/cl/7308102
2013-02-15 11:18:55 -05:00
Adam Langley
5b20a18f3b crypto/x509: support IP SANs.
Subject Alternative Names in X.509 certificates may include IP
addresses. This change adds support for marshaling, unmarshaling and
verifying this form of SAN.

It also causes IP addresses to only be checked against IP SANs,
rather than against hostnames as was previously the case. This
reflects RFC 6125.

Fixes #4658.

R=golang-dev, mikioh.mikioh, bradfitz
CC=golang-dev
https://golang.org/cl/7336046
2013-02-15 10:40:17 -05:00
Dmitriy Vyukov
a9824f178d runtime: fix debug output
R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/7312101
2013-02-15 17:04:02 +04:00
Alex Brainman
d844001601 mime: do not test for .wav on windows
Even builders don't have that mime type

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/7314106
2013-02-15 16:55:51 +11:00
Alex Brainman
f9dbbdb1d3 mime: use .wav instead of .bmp during windows tests
Some systems do not have .bmp mime.

Update #4723.

R=golang-dev, bradfitz, dave
CC=golang-dev
https://golang.org/cl/7326047
2013-02-15 15:52:54 +11:00
Alex Brainman
d71b3921f7 net: delete TestDialTimeoutHandleLeak
It is too flaky. Tried to make it more reliable,
but that affects other tests (they run too long),
because we do unusual things here, like attempting
to connect to non-existing address and interrupt.

R=golang-dev, bradfitz, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/7314097
2013-02-15 15:52:12 +11:00
Alan Donovan
e49f945603 runtime: expand error for signal received on non-Go thread.
We call runtime.findnull dynamically to avoid exceeding the
static nosplit stack limit check.  (Thanks minux!)

Fixes #4048.

R=rsc, minux.ma, ality
CC=golang-dev
https://golang.org/cl/7232066
2013-02-14 23:37:14 -05:00
Cosmos Nicolaou
c5b4292eb3 cmd/godoc: add support for doc.Package.Notes
Add support for displaying the notes of the form 'MARKER(userid): comment' now collected by the go/doc package. Any two or more uppercase letters are recognised as a marker.

R=gri, rsc, bradfitz
CC=golang-dev
https://golang.org/cl/7334044
2013-02-14 20:35:08 -08:00
Cosmos Nicolaou
d0f3475fda go/doc: add support for arbitrary notes
Add support for arbitrary notes of the form // MARKER(userid): comment
in the same vein as BUG(userid): A marker must be two or more upper case [A-Z] letters.

R=gri, rsc, bradfitz, jscrockett01
CC=golang-dev
https://golang.org/cl/7322061
2013-02-14 20:20:32 -08:00
Oling Cat
aecbcd0914 doc/contribute: fix some tags, remove extra space.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/7327048
2013-02-15 14:01:12 +11:00
Anthony Martin
f2c3122307 cmd/ld: fix -s flag for ELF executables
This fixes a regression introduced in changeset 98034d036d03
which added support for producing host object files.

R=rsc, minux.ma
CC=dave, golang-dev
https://golang.org/cl/7307107
2013-02-14 18:43:54 -08:00
Rémy Oudompheng
7c5bd322d5 log/syslog: fix channel race in test.
R=golang-dev, minux.ma, iant, bradfitz, dave
CC=golang-dev
https://golang.org/cl/7314057
2013-02-15 11:07:31 +11:00
Dave Cheney
ea0292c61b misc/dashboard/builder: record build result on dashboard
This is part one of two changes intended to make it easier to debug builder failures.

runOutput allows us to control the io.Writer passed to a subcommand. The intention is to add additional debugging information before and after the build which will then be capture and sent to the dashboard.

In this proposal, the only additional information is the build status. See http://build.golang.org/log/e7b5bf435b4de1913fc61781b3295fb3f03aeb6e

R=adg
CC=golang-dev
https://golang.org/cl/7303090
2013-02-15 10:44:29 +11:00
Carl Shapiro
817a3f39fd src/cmd/gc: fix some typos in the escape analysis comments
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7342044
2013-02-14 15:38:57 -08:00
Robert Griesemer
5b1885c241 go/parser: cleanups following CL 7307085
- use the new AllErrors flag where appropriate
- unless AllErrors is set, eliminate spurious
  errors before they are added to the errors list
  (it turns out that reporting spurious errors always
  leads to too many uninformative errors after all)

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7323065
2013-02-14 13:36:40 -08:00
Robert Griesemer
8e2b0e1cb8 C: add Cosmos Nicolaou (Google CLA)
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7314103
2013-02-14 13:35:52 -08:00
Daniel Morsing
38244018ce cmd/gc: remove node printing in redeclare errors
I suspect this is some debugging which got through the submission process.

Fixes #4789.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7310079
2013-02-14 21:11:47 +01:00
Dmitriy Vyukov
6a828482fa runtime: add more tests for LockOSThread()
Just test some additional paths through the scheduler.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7331044
2013-02-15 00:02:12 +04:00
Russ Cox
11884db3d7 cmd/go: fix vet
The IgnoredGoFiles are already listed in allgofiles,
so they were being run twice. Worse, the ones in
IgnoredGoFiles are not fully qualified paths, so they
weren't being found when executed outside the
package directory.

Fixes #4764.

R=golang-dev, minux.ma, franciscossouza
CC=golang-dev
https://golang.org/cl/7308049
2013-02-14 15:00:51 -05:00
Russ Cox
30359a55c2 encoding/json: document and test use of unicode.ReplacementChar
Fixes #4783.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7314099
2013-02-14 14:56:01 -05:00
Russ Cox
31072e41f4 cmd/gc: replace x*8 by x<<3 etc
Fixes #4199.

R=ken2
CC=golang-dev
https://golang.org/cl/7322081
2013-02-14 14:54:00 -05:00
Russ Cox
ac1015e7f3 cmd/8g: fix sse2 compare code gen
Fixes #4785.

R=ken2
CC=golang-dev
https://golang.org/cl/7300109
2013-02-14 14:49:04 -05:00
Russ Cox
d340a89d9c encoding/json: roll back Unmarshal optimization + test
The second attempt at the Unmarshal optimization allowed
panics to get out of the json package. Add test for that bug
and remove the optimization.

Let's stop trying to optimize Unmarshal.

Fixes #4784.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7300108
2013-02-14 14:46:15 -05:00
Russ Cox
da6207f7a4 go/types: avoid os.Getwd if not necessary
Getwd can be very expensive.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7312100
2013-02-14 14:46:03 -05:00
Michael Matloob
2cd96806f4 go/parser: stop ParseFile after ten errors.
There wil be a panic if more than ten errors are encountered. ParseFile
will recover and return the ErrorList.

Fixes #3943.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/7307085
2013-02-14 11:26:21 -08:00
Robert Griesemer
208c83096a C: add Michael Matloob (Google CLA)
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7343043
2013-02-14 11:25:33 -08:00
Brad Fitzpatrick
248d1446b5 syscall: don't make //sys lines be doc comments
Cleans up godoc and makes it consistent. (some had it, some
didn't)

This still keeps the information there, though, for people
looking at the source directly.

R=golang-dev, minux.ma, rsc
CC=golang-dev
https://golang.org/cl/7324056
2013-02-14 11:23:58 -08:00
Russ Cox
357a18a2c6 cmd/go: set $PWD when running commands
This makes os.Getwd inside those commands much faster.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7324055
2013-02-14 14:21:44 -05:00
Russ Cox
551f3f27aa test/run: use correct $PWD to make os.Getwd less expensive
The commands being run are 'go tool this' and 'go tool that',
and the go command will call Getwd during its init.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/7336045
2013-02-14 14:21:26 -05:00
Russ Cox
89fde30fbd os: cache Getwd result as hint for next time
Avoids the dot-dot-based algorithm on repeated calls
when the directory hasn't changed.

R=golang-dev, iant, bradfitz
CC=golang-dev
https://golang.org/cl/7340043
2013-02-14 14:21:09 -05:00
Brad Fitzpatrick
158a0353f7 net: document OpError
Fixes #4797

R=adg, rsc
CC=golang-dev
https://golang.org/cl/7300099
2013-02-14 09:29:34 -08:00
Volker Dobler
8e7d156237 exp/cookiejar: implement Cookies and provided tests
This CL provides the implementation of Cookies and
the complete test suite. Several tests have been ported
from the Chromium project as a cross check.

R=nigeltao, rsc, bradfitz
CC=golang-dev
https://golang.org/cl/7311073
2013-02-14 19:41:58 +11:00
Dmitriy Vyukov
691455f780 runtime: move stack management related code to stack.c
No code changes.
This is mainly in preparation to scheduler changes,
oldstack/newstack are not related to scheduling.

R=golang-dev, minux.ma, rsc
CC=golang-dev
https://golang.org/cl/7311085
2013-02-14 12:37:55 +04:00
Dave Cheney
2803744b86 net/textproto: more efficient header parsing
A co creation with bradfitz

* add fast path for header lines which are not continuations
* pass hint to better size initial mime header map

lucky(~/go/src/pkg/net/http) % ~/go/misc/benchcmp {golden,new}.txt
benchmark                          old ns/op    new ns/op    delta
BenchmarkReadRequestChrome             10073         8348  -17.12%
BenchmarkReadRequestCurl                4368         4350   -0.41%
BenchmarkReadRequestApachebench         4412         4397   -0.34%
BenchmarkReadRequestSiege               6431         5924   -7.88%
BenchmarkReadRequestWrk                 2820         3146  +11.56%

benchmark                           old MB/s     new MB/s  speedup
BenchmarkReadRequestChrome             60.66        73.18    1.21x
BenchmarkReadRequestCurl               17.85        17.93    1.00x
BenchmarkReadRequestApachebench        18.58        18.65    1.00x
BenchmarkReadRequestSiege              23.48        25.49    1.09x
BenchmarkReadRequestWrk                14.18        12.71    0.90x

benchmark                         old allocs   new allocs    delta
BenchmarkReadRequestChrome                32           26  -18.75%
BenchmarkReadRequestCurl                  15           15    0.00%
BenchmarkReadRequestApachebench           16           15   -6.25%
BenchmarkReadRequestSiege                 22           19  -13.64%
BenchmarkReadRequestWrk                   11           11    0.00%

benchmark                          old bytes    new bytes    delta
BenchmarkReadRequestChrome              3148         2216  -29.61%
BenchmarkReadRequestCurl                 905         1413   56.13%
BenchmarkReadRequestApachebench          956         1413   47.80%
BenchmarkReadRequestSiege               1397         1522    8.95%
BenchmarkReadRequestWrk                  757         1369   80.85%

R=bradfitz
CC=golang-dev
https://golang.org/cl/7300098
2013-02-14 19:35:38 +11:00
Robin Eklind
44d38ae3c0 archive/tar: add Header.FileInfo method. Add more cases to FileInfoHeader.
FileInfoHeader can now handle fifo, setuid, setgid and sticky bits.

Fixes #4695.

R=golang-dev, donovanhide, r.eklind.87, minux.ma, adg
CC=golang-dev
https://golang.org/cl/7305072
2013-02-14 17:32:48 +11:00
David Symonds
78cee8b3bb sort: use fewer comparisons when choosing pivot.
This is based on rsc's code posted to issue 2585.

Benchmark results are greatly improved:
        benchmark                old ns/op    new ns/op    delta
        BenchmarkSortString1K       564397       445897  -21.00%
        BenchmarkSortInt1K          270889       221249  -18.32%
        BenchmarkSortInt64K       26850765     21351967  -20.48%

Eyeballing a sampling of the raw number of comparisons shows a drop
on the order of 20-30% almost everywhere. The test input data that
doesn't match that are some of sawtooth/rand/plateau distributions,
where there is no change in the number of comparisons; that is,
there are no situations where this makes *more* comparisons.

Fixes #2585.

R=iant, rsc
CC=golang-dev
https://golang.org/cl/7306098
2013-02-14 15:04:22 +11:00
Russ Cox
7f284f85f9 cmd/vet: drop column information from error
The column information can be misleading.

R=golang-dev, dsymonds, r
CC=golang-dev
https://golang.org/cl/7300100
2013-02-13 22:34:37 -05:00
Russ Cox
e5dae3baaa runtime: tweak addfinroots to preserve original pointer
Use local variable so that stack trace will show value of v.

Fixes #4790.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/7300106
2013-02-13 22:31:45 -05:00