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2501 Commits

Author SHA1 Message Date
Russ Cox
3770b0e60c gc: implement nil chan support 
The spec has defined nil chans this way for months.
I'm behind.

R=ken2
CC=golang-dev
https://golang.org/cl/4897050
 2011-08-17 15:54:17 -04:00
Russ Cox
65bde087ae gc: implement nil map support 
The spec has defined nil maps this way for months.
I'm behind.

R=ken2
CC=golang-dev
https://golang.org/cl/4901052
 2011-08-17 14:56:27 -04:00
Russ Cox
cf79411b1d gc: fix mkbuiltin 
Broken by Plan 9 changes.

R=ken2
CC=golang-dev
https://golang.org/cl/4896050
 2011-08-17 14:54:51 -04:00
Robert Griesemer
b77c40a2b3 go/parser: do not accept type literals where not permitted in general 
- Resolves a long-standing TODO.
- Replacement for CL 4908042 by befelemepeseveze@gmail.com

Fixes #2155.

R=rsc
CC=golang-dev
https://golang.org/cl/4904048
 2011-08-17 10:27:32 -07:00
Rob Pike
a22e77e6ae template: move exp/template into template. 
(Leave exp/template/html where it is for now.)

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4899048
 2011-08-17 14:55:57 +10:00
Rob Pike
1d8f822c17 url: new package 
This is just moving the URL code from package http into its own package,
which has been planned for a while.
Besides clarity, this also breaks a nascent dependency cycle the new template
package was about to introduce.

Add a gofix module, url, and use it to generate changes outside http and url.

Sadness about the churn, gladness about some of the naming improvements.

R=dsymonds, bradfitz, rsc, gustavo, r
CC=golang-dev
https://golang.org/cl/4893043
 2011-08-17 13:36:02 +10:00
Julian Phillips
01dd57b312 cgo: omit duplicate symbols in writeDefs 
When the C API being used includes multiple names for the same
underlying symbol (e.g. multiple #define's for the same variable), then
cgo will generate the same placeholder variables for each name.  This
then prevents the code from compiling due to multiple declarations of
the same variable - so change cgo to only create one instance of the
variable for the underlying symbol.

R=rsc
CC=golang-dev
https://golang.org/cl/4826055
 2011-08-16 14:56:23 -04:00
Lucio De Re
f12e543255 5l, 6l, 8l: add varargck for %Z 
R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/4837044
 2011-08-16 14:22:12 -04:00
Lucio De Re
c8c6e1961d 5c, 6c, 6l: fix Plan 9 build warnings 
src/cmd/5c/reg.c:
. Added USED() attribute.

src/cmd/6c/cgen.c:
. Revised code around "REGARG" to resemble use in "8c" and
  consequently remove a warning.

src/cmd/6l/asm.c:
. Added USED() attributes.
. Removed an unnecessary assignment.

R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/4836045
 2011-08-16 14:22:08 -04:00
Lucio De Re
93ecb5bb1b ld: make addaddrplus4 static 
R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/4835043
 2011-08-16 14:22:02 -04:00
Robert Griesemer
0310935058 godoc: show all top-level decls for (fake) package builtin 
R=r, adg
CC=golang-dev
https://golang.org/cl/4904045
 2011-08-15 19:05:52 -07:00
Robert Griesemer
91fadbca17 godoc: fix escaping in templates 
- HTML-escape URL paths
- URL-escape URL parameters

R=bradfitz
CC=golang-dev
https://golang.org/cl/4890041
 2011-08-15 15:15:54 -07:00
Andrew Gerrand
6e66b16abe goinstall: report all newly-installed public packages 
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4875048
 2011-08-14 10:52:20 +10:00
Robert Griesemer
c71b676724 godoc: position URLs (containing file names) must be quoted and URL escaped 
Since the posLink_url also adds a non-URL attribute, the quoting and  URL-escaping
must happen inside posLink_url (otherwise the non-URL attribute becomes part or the
URL portion of the tag.

R=r
CC=golang-dev
https://golang.org/cl/4888041
 2011-08-12 16:28:55 -07:00
Robert Griesemer
5c45e56898 godoc: remove last vestiges of old template system 
- rename template funcs for better consistency and
  sort them into groups of related functionality
- try to be more consistent with html vs url escaping

R=r
CC=golang-dev
https://golang.org/cl/4887041
 2011-08-12 15:43:10 -07:00
Robert Griesemer
5233c50321 godoc: first round of template cleanups 
- simplified pipelines
- simplified templates by using template variables
- converted most old-style formatters into new-style funcs
- fixed some escaping bugs (use of url escaping where it was missing)

R=r, dsymonds
CC=golang-dev
https://golang.org/cl/4868044
 2011-08-12 10:06:32 -07:00
Robert Griesemer
2e394c51d9 godoc: moving to new template package 
- first step; rough conversion of all template files
- there is plenty of opportunity for cleanups/simplifications (next CLs)
- html and text output as before

R=r, dsymonds
CC=golang-dev
https://golang.org/cl/4852048
 2011-08-11 13:24:13 -07:00
Wei Guangjing
1ac7a69701 ld: add one empty symbol into pe to make dumpbin works. 
Fixes #2139.

R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/4838056
 2011-08-10 11:09:06 +10:00
Dmitriy Vyukov
54e9406ffb runtime: add more specialized type algorithms 
The change adds specialized type algorithms
for slices and types of size 8/16/32/64/128.
It significantly accelerates chan and map operations
for most builtin types as well as user structs.

benchmark                   old,ns/op   new,ns/op
BenchmarkChanUncontended          226          94
(on Intel Xeon E5620, 2.4GHz, Linux 64 bit)

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4815087
 2011-08-08 09:35:32 -04:00
Robert Griesemer
4c268b335f gofmt: update test script so 'make test' succeeds 
R=r, rsc
CC=golang-dev
https://golang.org/cl/4832055
 2011-08-06 12:30:54 -07:00
David Symonds
11e254e62c ld: fail linking if the top-level package is not main. 
This makes {5,6,8}l conform to the spec more tightly.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4826063
 2011-08-02 07:45:04 -04:00
Dave Cheney
317911c9ff 5g: fix set but not used error 
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4816061
 2011-07-31 19:54:47 -07:00
Lucio De Re
05f734c8b4 cmd/ld/pe.c: Corrected mismatched print formats and variables. 
R=golang-dev, alex.brainman
CC=golang-dev, rsc
https://golang.org/cl/4839041
 2011-08-01 11:12:50 +10:00
Russ Cox
124172e2cf godoc: allow form feed in text files 
Now recognizes misc/emacs/go-mode-load.el as text.

Fixes #2115.

R=gri
CC=golang-dev
https://golang.org/cl/4801061
 2011-07-29 13:47:54 -04:00
Joel Sing
ffa14e849c 6l: OpenBSD support 
Add linker support for OpenBSD ELF-64.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4815066
 2011-07-29 13:47:41 -04:00
Dmitriy Vyukov
4e5086b993 runtime: improve Linux mutex 
The implementation is hybrid active/passive spin/blocking mutex.
The design minimizes amount of context switches and futex calls.
The idea is that all critical sections in runtime are intentially
small, so pure blocking mutex behaves badly causing
a lot of context switches, thread parking/unparking and kernel calls.
Note that some synthetic benchmarks become somewhat slower,
that's due to increased contention on other data structures,
it should not affect programs that do any real work.

On 2 x Intel E5620, 8 HT cores, 2.4GHz
benchmark                     old ns/op    new ns/op    delta
BenchmarkSelectContended         521.00       503.00   -3.45%
BenchmarkSelectContended-2       661.00       320.00  -51.59%
BenchmarkSelectContended-4      1139.00       629.00  -44.78%
BenchmarkSelectContended-8      2870.00       878.00  -69.41%
BenchmarkSelectContended-16     5276.00       818.00  -84.50%
BenchmarkChanContended           112.00       103.00   -8.04%
BenchmarkChanContended-2         631.00       174.00  -72.42%
BenchmarkChanContended-4         682.00       272.00  -60.12%
BenchmarkChanContended-8        1601.00       520.00  -67.52%
BenchmarkChanContended-16       3100.00       372.00  -88.00%
BenchmarkChanSync                253.00       239.00   -5.53%
BenchmarkChanSync-2             5030.00      4648.00   -7.59%
BenchmarkChanSync-4             4826.00      4694.00   -2.74%
BenchmarkChanSync-8             4778.00      4713.00   -1.36%
BenchmarkChanSync-16            5289.00      4710.00  -10.95%
BenchmarkChanProdCons0           273.00       254.00   -6.96%
BenchmarkChanProdCons0-2         599.00       400.00  -33.22%
BenchmarkChanProdCons0-4        1168.00       659.00  -43.58%
BenchmarkChanProdCons0-8        2831.00      1057.00  -62.66%
BenchmarkChanProdCons0-16       4197.00      1037.00  -75.29%
BenchmarkChanProdCons10          150.00       140.00   -6.67%
BenchmarkChanProdCons10-2        607.00       268.00  -55.85%
BenchmarkChanProdCons10-4       1137.00       404.00  -64.47%
BenchmarkChanProdCons10-8       2115.00       828.00  -60.85%
BenchmarkChanProdCons10-16      4283.00       855.00  -80.04%
BenchmarkChanProdCons100         117.00       110.00   -5.98%
BenchmarkChanProdCons100-2       558.00       218.00  -60.93%
BenchmarkChanProdCons100-4       722.00       287.00  -60.25%
BenchmarkChanProdCons100-8      1840.00       431.00  -76.58%
BenchmarkChanProdCons100-16     3394.00       448.00  -86.80%
BenchmarkChanProdConsWork0      2014.00      1996.00   -0.89%
BenchmarkChanProdConsWork0-2    1207.00      1127.00   -6.63%
BenchmarkChanProdConsWork0-4    1913.00       611.00  -68.06%
BenchmarkChanProdConsWork0-8    3016.00       949.00  -68.53%
BenchmarkChanProdConsWork0-16   4320.00      1154.00  -73.29%
BenchmarkChanProdConsWork10     1906.00      1897.00   -0.47%
BenchmarkChanProdConsWork10-2   1123.00      1033.00   -8.01%
BenchmarkChanProdConsWork10-4   1076.00       571.00  -46.93%
BenchmarkChanProdConsWork10-8   2748.00      1096.00  -60.12%
BenchmarkChanProdConsWork10-16  4600.00      1105.00  -75.98%
BenchmarkChanProdConsWork100    1884.00      1852.00   -1.70%
BenchmarkChanProdConsWork100-2  1235.00      1146.00   -7.21%
BenchmarkChanProdConsWork100-4  1217.00       619.00  -49.14%
BenchmarkChanProdConsWork100-8  1534.00       509.00  -66.82%
BenchmarkChanProdConsWork100-16 4126.00       918.00  -77.75%
BenchmarkSyscall                  34.40        33.30   -3.20%
BenchmarkSyscall-2               160.00       121.00  -24.38%
BenchmarkSyscall-4               131.00       136.00   +3.82%
BenchmarkSyscall-8               139.00       131.00   -5.76%
BenchmarkSyscall-16              161.00       168.00   +4.35%
BenchmarkSyscallWork             950.00       950.00   +0.00%
BenchmarkSyscallWork-2           481.00       480.00   -0.21%
BenchmarkSyscallWork-4           268.00       270.00   +0.75%
BenchmarkSyscallWork-8           156.00       169.00   +8.33%
BenchmarkSyscallWork-16          188.00       184.00   -2.13%
BenchmarkSemaSyntNonblock         36.40        35.60   -2.20%
BenchmarkSemaSyntNonblock-2       81.40        45.10  -44.59%
BenchmarkSemaSyntNonblock-4      126.00       108.00  -14.29%
BenchmarkSemaSyntNonblock-8      112.00       112.00   +0.00%
BenchmarkSemaSyntNonblock-16     110.00       112.00   +1.82%
BenchmarkSemaSyntBlock            35.30        35.30   +0.00%
BenchmarkSemaSyntBlock-2         118.00       124.00   +5.08%
BenchmarkSemaSyntBlock-4         105.00       108.00   +2.86%
BenchmarkSemaSyntBlock-8         101.00       111.00   +9.90%
BenchmarkSemaSyntBlock-16        112.00       118.00   +5.36%
BenchmarkSemaWorkNonblock        810.00       811.00   +0.12%
BenchmarkSemaWorkNonblock-2      476.00       414.00  -13.03%
BenchmarkSemaWorkNonblock-4      238.00       228.00   -4.20%
BenchmarkSemaWorkNonblock-8      140.00       126.00  -10.00%
BenchmarkSemaWorkNonblock-16     117.00       116.00   -0.85%
BenchmarkSemaWorkBlock           810.00       811.00   +0.12%
BenchmarkSemaWorkBlock-2         454.00       466.00   +2.64%
BenchmarkSemaWorkBlock-4         243.00       241.00   -0.82%
BenchmarkSemaWorkBlock-8         145.00       137.00   -5.52%
BenchmarkSemaWorkBlock-16        132.00       123.00   -6.82%
BenchmarkContendedSemaphore      123.00       102.00  -17.07%
BenchmarkContendedSemaphore-2     34.80        34.90   +0.29%
BenchmarkContendedSemaphore-4     34.70        34.80   +0.29%
BenchmarkContendedSemaphore-8     34.70        34.70   +0.00%
BenchmarkContendedSemaphore-16    34.80        34.70   -0.29%
BenchmarkMutex                    26.80        26.00   -2.99%
BenchmarkMutex-2                 108.00        45.20  -58.15%
BenchmarkMutex-4                 103.00       127.00  +23.30%
BenchmarkMutex-8                 109.00       147.00  +34.86%
BenchmarkMutex-16                102.00       152.00  +49.02%
BenchmarkMutexSlack               27.00        26.90   -0.37%
BenchmarkMutexSlack-2            149.00       165.00  +10.74%
BenchmarkMutexSlack-4            121.00       209.00  +72.73%
BenchmarkMutexSlack-8            101.00       158.00  +56.44%
BenchmarkMutexSlack-16            97.00       129.00  +32.99%
BenchmarkMutexWork               792.00       794.00   +0.25%
BenchmarkMutexWork-2             407.00       409.00   +0.49%
BenchmarkMutexWork-4             220.00       209.00   -5.00%
BenchmarkMutexWork-8             267.00       160.00  -40.07%
BenchmarkMutexWork-16            315.00       300.00   -4.76%
BenchmarkMutexWorkSlack          792.00       793.00   +0.13%
BenchmarkMutexWorkSlack-2        406.00       404.00   -0.49%
BenchmarkMutexWorkSlack-4        225.00       212.00   -5.78%
BenchmarkMutexWorkSlack-8        268.00       136.00  -49.25%
BenchmarkMutexWorkSlack-16       300.00       300.00   +0.00%
BenchmarkRWMutexWrite100          27.10        27.00   -0.37%
BenchmarkRWMutexWrite100-2        33.10        40.80  +23.26%
BenchmarkRWMutexWrite100-4       113.00        88.10  -22.04%
BenchmarkRWMutexWrite100-8       119.00        95.30  -19.92%
BenchmarkRWMutexWrite100-16      148.00       109.00  -26.35%
BenchmarkRWMutexWrite10           29.60        29.40   -0.68%
BenchmarkRWMutexWrite10-2        111.00        61.40  -44.68%
BenchmarkRWMutexWrite10-4        270.00       208.00  -22.96%
BenchmarkRWMutexWrite10-8        204.00       185.00   -9.31%
BenchmarkRWMutexWrite10-16       261.00       190.00  -27.20%
BenchmarkRWMutexWorkWrite100    1040.00      1036.00   -0.38%
BenchmarkRWMutexWorkWrite100-2   593.00       580.00   -2.19%
BenchmarkRWMutexWorkWrite100-4   470.00       365.00  -22.34%
BenchmarkRWMutexWorkWrite100-8   468.00       289.00  -38.25%
BenchmarkRWMutexWorkWrite100-16  604.00       374.00  -38.08%
BenchmarkRWMutexWorkWrite10      951.00       951.00   +0.00%
BenchmarkRWMutexWorkWrite10-2   1001.00       928.00   -7.29%
BenchmarkRWMutexWorkWrite10-4   1555.00      1006.00  -35.31%
BenchmarkRWMutexWorkWrite10-8   2085.00      1171.00  -43.84%
BenchmarkRWMutexWorkWrite10-16  2082.00      1614.00  -22.48%

R=rsc, iant, msolo, fw, iant
CC=golang-dev
https://golang.org/cl/4711045
 2011-07-29 12:44:06 -04:00
Russ Cox
032ffb2e90 gc: more graceful errors during struct definition 
Fixes #2110.

R=ken2
CC=golang-dev
https://golang.org/cl/4823060
 2011-07-28 20:41:18 -04:00
Rob Pike
33a4da89d3 exp/template: fix build 
TBR=gri

R=gri
CC=golang-dev
https://golang.org/cl/4815070
 2011-07-28 16:46:32 -07:00
Russ Cox
28a23675cd 5g, 6g, 8g: shift, opt fixes 
Fixes #1808.

R=ken2
CC=golang-dev
https://golang.org/cl/4813052
 2011-07-28 18:22:12 -04:00
Russ Cox
8c23c1ab87 5g: defer vs optimizer bug 
Fixes #1924.

R=ken2
CC=golang-dev
https://golang.org/cl/4802063
 2011-07-28 16:28:23 -04:00
Russ Cox
08bfb39515 6g, 8g: divide corner case 
Fixes #1772.

R=ken2
CC=golang-dev
https://golang.org/cl/4798062
 2011-07-28 14:18:22 -04:00
Russ Cox
fe206e63ca build: handle spaces in $USER 
Fixes #2107.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4830042
 2011-07-28 13:04:52 -04:00
Russ Cox
4389192669 gc: shift type bug 
Fixes #1664.

R=ken2
CC=golang-dev
https://golang.org/cl/4798056
 2011-07-28 13:03:30 -04:00
Russ Cox
db9229def8 cgo: add GoBytes, fix gmp example 
Fixes #1640.
Fixes #2007.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4815063
 2011-07-28 12:39:50 -04:00
Russ Cox
2f8190a8f8 gc: line number + type checking nits 
Fixes #1910.
Fixes #1979.
Fixes #1990.
Fixes #1993.
Fixes #2089.

R=ken2
CC=golang-dev
https://golang.org/cl/4828046
 2011-07-28 12:31:16 -04:00
Alex Brainman
fa249cae38 ld: remove cseekend and redo pe writing 
Simplify code and add more checks.

Fixes #2105.

R=rsc
CC=golang-dev
https://golang.org/cl/4794060
 2011-07-28 14:30:52 +10:00
Russ Cox
890bdc5339 gc: top-level closure bug 
Fixes #2055.

R=ken2
CC=golang-dev
https://golang.org/cl/4816059
 2011-07-27 19:31:11 -04:00
Russ Cox
f91eb3c2f9 gc: composite literal double eval bug 
Fixes #2086.

R=ken2
CC=golang-dev
https://golang.org/cl/4803055
 2011-07-27 18:55:30 -04:00
Robert Griesemer
d7a0e0e6a2 godoc: app engine configuration and updated documentation 
Also: Fixed an error message in zip.go.

R=r, dsymonds
CC=golang-dev
https://golang.org/cl/4816053
 2011-07-27 15:14:12 -07:00
Russ Cox
1bd4b6371a gc: use more Go-like names for methods 
Fixes #991.

R=ken2
CC=golang-dev
https://golang.org/cl/4819049
 2011-07-27 17:56:13 -04:00
Russ Cox
112267d55e gc: diagnose (x) := 0 
Fixes #1756.

R=ken2
CC=golang-dev
https://golang.org/cl/4810057
 2011-07-27 17:39:30 -04:00
Russ Cox
a84abbe508 gc: zero-width struct, zero-length array fixes 
Fixes #1774.
Fixes #2095.
Fixes #2097.

R=ken2
CC=golang-dev
https://golang.org/cl/4826046
 2011-07-27 16:47:45 -04:00
Russ Cox
dec8009fe8 gc: iota outside const 
Fixes #1662.

R=ken2
CC=golang-dev
https://golang.org/cl/4828045
 2011-07-27 14:45:27 -04:00
Russ Cox
49b70d01c0 gc: echo literal in error message 
Fixes #1192.

R=ken2
CC=golang-dev
https://golang.org/cl/4794062
 2011-07-27 14:36:21 -04:00
Rob Pike
2fc962697a goinstall: generate makefiles using exp/template 
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4809052
 2011-07-26 14:45:36 -07:00
Russ Cox
12a5774cde gc, runtime: fix range+panic line number bugs 
Fixes #1856.

R=ken2
CC=golang-dev
https://golang.org/cl/4810054
 2011-07-26 00:52:46 -04:00
Russ Cox
cce10dacc6 gc: fix select line number 
Fixes #1393.

R=ken2
CC=golang-dev
https://golang.org/cl/4811054
 2011-07-26 00:52:17 -04:00
Russ Cox
bf899befdb gc: disallow [...][...]int{{1,2,3}} 
Fixes #1600.

R=ken2
CC=golang-dev
https://golang.org/cl/4819045
 2011-07-26 00:52:02 -04:00
Andrew Gerrand
83305fecfe goinstall: abort and warn when using any url scheme, not just 'http://' 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4801053
 2011-07-26 04:16:34 +10:00
Lucio De Re
75c918c1ae ld: fix build on Plan 9 
ld/data.c:
. Format specifier with corresponding cast to cater for all
  architectures (llux and vlong).

ld/ldelf.c:
ld/ldmacho.c:
. Missing "pn" argument in diag() calls.

ld/ldpe.c:
. Dropped "sym->sectnum" in diag() call.
. Typo in a comment.

ld/lib.h:
. Added varargck pragma for "O".

R=rsc
CC=golang-dev
https://golang.org/cl/4749042
 2011-07-25 13:45:50 -04:00