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Commit Graph

2695 Commits

Author SHA1 Message Date
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
Lucio De Re
12995e2d35 gc: fix mkbuiltin for Plan 9 build
. Replaced Posix #includes with u.h and libc.h.
. Replaced fprintf(stderr,...); exit(1); with sysfatal() calls.

R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/4823047
2011-07-25 13:45:37 -04:00
Wei Guangjing
0871af25aa ld: don't skip first 2 symbols in ldpe.
some object files don't has file name symbol.

R=golang-dev, lucio.dere, rsc
CC=golang-dev
https://golang.org/cl/4814051
2011-07-25 12:25:44 -04:00
Dmitriy Vyukov
33ff947cac runtime: fix compilation of send select cases
Fixes #2102.

R=fullung, rsc
CC=golang-dev
https://golang.org/cl/4825043
2011-07-25 12:25:37 -04:00
Andrew Gerrand
fc2480da3c goinstall: write to goinstall.log in respective GOPATH
goinstall: report every newly installed package to the dashboard

This makes "goinstall -a" work on systems with GOROOTs that are
not user-writable, as is the case with Debian's Go packages.

This also makes goinstall.log the canonical list of installed
packages, in that only packages new to goinstall.log are reported to
the dashboard.

A side-effect is that writing to goinstall.log is now mandatory.
(A bug in the original implementation meant this was the case, anyway.)

The principal benefit of this change is that multiple packages from the
same repository can now be reported to the dashboard.  It is also less
likely for a user to report multiple installations of the same package
to the dashboard (they would need to remove the package from
goinstall.log first).

R=rsc, n13m3y3r
CC=golang-dev
https://golang.org/cl/4786041
2011-07-24 13:43:08 +10:00
Wei Guangjing
7ce1a4bdc0 ld: fixes .bss for ldpe
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4794056
2011-07-23 12:21:13 -04:00
Robert Griesemer
3ddaa95d71 fix build: clean up file end in an attempt to fix build
R=r, iant
CC=golang-dev
https://golang.org/cl/4809050
2011-07-22 22:45:14 -07:00
Robert Griesemer
dcef981217 godoc/httpzip.go: use correct path in Readdir
Fixes a problem where Readdir would always return
empty directories (Readdir is only called by godoc
if the usual directory handler is commented out
in godoc.go, and if a zip file system is provided;
thus, this bug never manifested itself in godoc).

Also:
- better choice of variable/field names
- simplified error handling a bit
- better comments

R=bradfitz
CC=golang-dev
https://golang.org/cl/4813047
2011-07-22 22:24:04 -07:00
Wei Guangjing
4e5e12e305 ld: fixes ldpe link with SXREF global values.
R=golang-dev, mattn.jp, rsc
CC=golang-dev
https://golang.org/cl/4794052
2011-07-22 21:21:08 -04:00
Russ Cox
b9b204d55d ld: detect all import cycles
Fixes #2052.

R=r
CC=golang-dev
https://golang.org/cl/4812053
2011-07-22 21:18:03 -04:00
Robert Griesemer
e62e595e7a godoc/zip.go: fix another zip file system bug
Don't report that a directory was found just because we found
the list index where the directory would be if it were there...

R=iant
CC=golang-dev
https://golang.org/cl/4812051
2011-07-22 15:21:50 -07:00
Robert Griesemer
fa497796f5 go/parser: report illegal label declarations at ':' rather than guessing the start
Also:
- Add parser.SpuriousError flag. If set, the parser reports all (including
  spurious) errors rather then at most one error per line.
- Add -e flag to gofmt and gotype: If set, gofmt and gotype report all
  (including spurious) errors rather than at most one error per line.
- Updated the respective documentation.

Fixes #2088.

R=rsc
CC=golang-dev
https://golang.org/cl/4803047
2011-07-22 09:55:37 -07:00
Rob Pike
3d552700ce goyacc: cleanups
- remove calls to print
- make units compile again
- make units.y closer to gofmt style

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4802052
2011-07-22 17:58:38 +10:00
Russ Cox
22853098a9 gc: select functions are no longer special
R=ken2
CC=golang-dev
https://golang.org/cl/4794049
2011-07-21 14:10:39 -04:00
Dmitriy Vyukov
6b2ec06587 runtime: faster select
Make selectsend() accept pointer to the element,
it makes it possible to make Scase fixed-size
and allocate/free Select, all Scase's and all SudoG at once.
As a consequence SudoG freelist die out.

benchmark                       old,ns/op  new,ns/op
BenchmarkSelectUncontended	     1080        558
BenchmarkSelectUncontended-2	      675        264
BenchmarkSelectUncontended-4	      459        205
BenchmarkSelectContended	     1086        560
BenchmarkSelectContended-2	     1775       1672
BenchmarkSelectContended-4	     2668       2149
(on Intel Q6600, 4 cores, 2.4GHz)

benchmark                       old ns/op    new ns/op    delta
BenchmarkSelectUncontended         517.00       326.00  -36.94%
BenchmarkSelectUncontended-2       281.00       166.00  -40.93%
BenchmarkSelectUncontended-4       250.00        83.10  -66.76%
BenchmarkSelectUncontended-8       107.00        47.40  -55.70%
BenchmarkSelectUncontended-16       67.80        41.30  -39.09%
BenchmarkSelectContended           513.00       325.00  -36.65%
BenchmarkSelectContended-2         699.00       628.00  -10.16%
BenchmarkSelectContended-4        1085.00      1092.00   +0.65%
BenchmarkSelectContended-8        3253.00      2477.00  -23.85%
BenchmarkSelectContended-16       5313.00      5116.00   -3.71%
(on Intel E5620, 8 HT cores, 2.4 GHz)

R=rsc, ken
CC=golang-dev
https://golang.org/cl/4811041
2011-07-21 13:57:13 -04:00
Gustavo Niemeyer
14eba969d8 ld: fix freebsd build reverting .interp move
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4794046
2011-07-21 03:48:56 -03:00
Robert Griesemer
4c03bf9c59 godoc: fix zip file directory lookup
Also: remove left-over println calls.

R=bradfitz
CC=golang-dev
https://golang.org/cl/4807042
2011-07-20 16:22:13 -07:00
Gustavo Niemeyer
ba2e3af177 ld: remove overlap of ELF sections on dynamic binaries
The dynamic ELF sections were pointing to the proper data,
but that data was already owned by the rodata and text sections.
Some ELF references explicitly prohibit multiple sections from
owning the same data, and strip behaves accordingly.

The data for these sections was moved out and their ranges are
now owned by their respective sections.  This change makes strip
happy both with and without -s being provided at link time.

A test was added in debug/elf to ensure there are no regressions
on this area in the future.

Fixes #1242.
Fixes #2022.

NOTE: Tested on Linux amd64/386/arm only.

R=rsc
CC=golang-dev
https://golang.org/cl/4808043
2011-07-20 12:47:02 -03:00
Robert Griesemer
8930ce2dc1 godoc: implement http.FileSystem for zip files
R=rsc, adg, bradfitz
CC=golang-dev
https://golang.org/cl/4750047
2011-07-19 08:22:20 -07:00
Wei Guangjing
9f636598ba cgo: windows amd64 port
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4725041
2011-07-19 10:47:33 -04:00
Tarmigan Casebolt
a0d3be1689 goinstall, dashboard: Google Code now supports git
R=golang-dev, adg, rsc, tarmigan+golang
CC=golang-dev
https://golang.org/cl/4760055
2011-07-19 16:58:18 +10:00
Rob Pike
423ab2333a 5l: fix arm linker bug introduced by 4742041
Should fix the arm build.

R=golang-dev, dsymonds, adg
CC=golang-dev
https://golang.org/cl/4777041
2011-07-19 15:44:25 +10:00
Russ Cox
92c6061b5c 5l: assume Linux binary, not Plan 9
R=bradfitz
CC=golang-dev
https://golang.org/cl/4767042
2011-07-18 12:30:10 -04:00
Russ Cox
caa5647408 ld: allow seek within write buffer
Reduces number of write+seek's from 88516 to 2080
when linking godoc with 6l.

Thanks to Alex Brainman for pointing out the
many small writes.

R=golang-dev, r, alex.brainman, robert.hencke
CC=golang-dev
https://golang.org/cl/4743043
2011-07-18 12:04:09 -04:00
Brad Fitzpatrick
e8689404a7 cgo: add missing semicolon in generated struct
This affected certain signatures needing padding
like:

//export Foo
func Foo() (int, C.long) { ... }

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4745047
2011-07-18 07:23:52 -07:00
Dave Cheney
c945d9c8a1 gc: fix silent sign truncation in pgen.c
Fixes #2076.

R=golang-dev, r, r, dsymonds, lucio.dere
CC=golang-dev
https://golang.org/cl/4744047
2011-07-18 21:09:28 +10:00
Rob Pike
9d55c282e3 5c: attempt to fix build by silencing warnings about unused variables.
The story is more complicated; this is just a bandaid.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4755047
2011-07-18 11:08:55 +10:00
Lucio De Re
8c5c3c504c cmd/5l/Makefile: directory prefix nit, "../5l/" is not needed.
R=golang-dev, r
CC=golang-dev, rsc
https://golang.org/cl/4755046
2011-07-18 08:46:47 +10:00
Lucio De Re
4c6280b0f1 6a, 6c, 6l: fix for Plan 9 build
6a/a.h:
. Dropped <u.h> and <libc.h>.
. Made definition of EOF conditional.

6a/a.y:
. Added <u.h> and <libc.h>.

6a/lex.c:
. Added <u.h> and <libc.h>.
. Dropped <ctype.h> (now in <u.h>).

6c/gc.h:
. Added varargck pragma for "lD".

6c/swt.c:
. Dropped unused "thestring" argument in Bprint() calls.

6l/Makefile:
. Dropped unneeded directory prefix.

6l/l.h:
. Dropped unneeded directory prefix.
. Added varargck pragma for "I" and "i".

6l/obj.c:
. Dropped unneeded assignment.
. Dropped unreachable goto statement.

6l/pass.c:
. Dropped assignments flagged as unused.

6l/prof.c:
. Replaced "#if 0" with "#ifdef NOTDEF".

6l/span.c:
. Dropped unused incrementation.
. Added USED() as required.
. Dropped unreachable "return" statement.

R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/4747044
2011-07-15 11:58:39 -04:00
Lucio De Re
5ea4d73b17 5a, 5c, 5l: fix for Plan 9 build
5a/a.h:
. Removed <u.h> and <lib.h>.
. Made definition of EOF conditional.

5a/a.y:
. Added <u.h> and <lib.h>.

5a/lex.c:
. Added <u.h> and <lib.h>.
. Dropped <ctype.h> (now in <u.h>).

5c/peep.c:
. Removed unnecessary "return 0" statement.

5c/reg.c:
. Added compilation condition around unused code.

5c/swt.c:
. Removed unused "thestring" argument from Bprint() calls.

5l/asm.c:
. Added USED() statements as required.
. Adjusted a few format specifications.
. Added compilation condition around unused code.

5l/l.h:
. Dropped directory prefix from <../5l/5.out.h>.
. Added varargck pragma for "I" and "i".

5l/obj.c:
. Cascaded consecutive "if" statements.
. Dropped unnecessary incrementation and assignments.

5l/pass.c:
. Dropped unnecessary assignment.

5l/prof.c:
. #if 0 converted to #ifdef NOTDEF.

5l/span.c:
. Dropped unnecessary incrementation and assignments.

R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/4752041
2011-07-15 11:58:28 -04:00
Lucio De Re
0490eb60bb 8l: nits
8l/Makefile:
. Dropped unnecessary prefix from "../8l/8.out.h"

8l/l.h:
. Dropped unnecessary prefix from "../8l/8.out.h"
. Dropped unused and inconsistent "I" vararg pragma.

R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/4754041
2011-07-15 11:51:59 -04:00
Luuk van Dijk
8cf8806d31 gc: some enhancements to printing debug info.
R=rsc
CC=golang-dev
https://golang.org/cl/4710046
2011-07-15 16:00:05 +02:00
Robert Griesemer
90564a9256 go/printer: changed max. number of newlines from 3 to 2
manual changes in src/pkg/go/printer, src/cmd/gofix/signal_test.go
(cd src/cmd/gofix/testdata; gofmt -w *.in *.out)
(cd src/pkg/go/printer; gotest -update)
gofmt -w misc src

runs all tests

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4715041
2011-07-14 14:39:40 -07:00
Russ Cox
58e19aa4cb go: require { } around else block
R=gri, ken, r
CC=golang-dev
https://golang.org/cl/4721044
2011-07-14 17:15:52 -04:00
Robert Griesemer
8d73781f8b godoc: fix build (add Makefile change)
R=bradfitz
CC=golang-dev
https://golang.org/cl/4733041
2011-07-14 11:48:23 -07:00
Robert Griesemer
df68a61c9e godoc: support for file systems stored in .zip files
Instead of serving files of the underlying OS file system,
a .zip file may be provided to godoc containing the files
to serve; for instance:

   godoc -http=:6060 -zip=go.zip

using a .zip file created from a clean tree as follows:

   zip -r go.zip $GOROOT

R=rsc
CC=golang-dev
https://golang.org/cl/4670053
2011-07-14 11:34:53 -07:00
Luuk van Dijk
e8ff9a624f gc: fix closure bug
Fixes #2056.

R=rsc
CC=golang-dev
https://golang.org/cl/4709042
2011-07-14 18:13:39 +02:00
Lucio De Re
3f2cc8ba7e cc: fixes for Plan 9 build
<ctype.h> has been moved into <u.h>, specifically to be able to
drop it from these modules.

Will someone check platforms other than UBUNTU/386, please?

R=bsiegert, rsc
CC=golang-dev
https://golang.org/cl/4648078
2011-07-13 16:01:29 -07:00
Brad Fitzpatrick
dcdaeebdfb docs: fix wrong it's -> its
R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/4702046
2011-07-13 10:54:51 -07:00
David Anderson
f1df07bf6a 5l, 6l, 8l: Add a PT_LOAD PHDR entry for the PHDR.
Per the TIS ELF spec, if a PHDR entry is present in the
program header table, it must be part of the memory image of
the program. Failure to do this makes elflint complain, and
causes some tools that manipulate ELF to crash.

R=iant, rsc
CC=dave, golang-dev
https://golang.org/cl/4650067
2011-07-12 17:49:55 -07:00
Quan Yong Zhai
fe9991e8b2 runtime: replace runtime.mcpy with runtime.memmove
faster string operations, and more

tested on linux/386

runtime_test.BenchmarkSliceToString                    642          532  -17.13%
runtime_test.BenchmarkStringToSlice                    636          528  -16.98%
runtime_test.BenchmarkConcatString                    1109          897  -19.12%

R=r, iant, rsc
CC=golang-dev
https://golang.org/cl/4674042
2011-07-12 17:30:40 -07:00
Robert Hencke
67edf9cb87 gc: make size of struct{} and [0]byte 0 bytes
Fixes #1949.

R=iant, rsc
CC=golang-dev
https://golang.org/cl/4634124
2011-07-12 11:12:06 -07:00
Adam Langley
9f4c288c16 hash/crc32: add SSE4.2 support
Using the CRC32 instruction speeds up the Castagnoli computation by
about 20x on a modern Intel CPU.

R=rsc
CC=golang-dev
https://golang.org/cl/4650072
2011-07-12 09:29:24 -04:00
Alex Brainman
8ed9fc600c 6l: change default output name to 6.out.exe on windows
R=golang-dev, vcc.163
CC=golang-dev
https://golang.org/cl/4670049
2011-07-12 14:22:48 +10:00
Andrew Gerrand
5bcbcab311 sort: rename helpers: s/Sort// in sort.Sort[Float64s|Ints|Strings]
Includes 'sorthelpers' gofix and updates to tree.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/4631098
2011-07-08 10:52:50 +10:00
Luuk van Dijk
13d048a221 gc: fix %N for OGOTO nodes.
6g -W crashed on any source with a goto. this fixes that.

R=rsc, r
CC=golang-dev
https://golang.org/cl/4675052
2011-07-06 00:02:03 +02:00
Andrew Gerrand
b7db4fef22 godoc: ignore directories that begin with '.'
Fixes #2017.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4675047
2011-07-05 17:00:18 +10:00
Andrew Gerrand
a342006207 goinstall: only report successfully-installed packages to the dashboard
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4657071
2011-07-04 16:05:11 +10:00
Andrew Gerrand
3cd8f27d79 godoc: search GOPATH for documentation
R=rsc, mattn.jp
CC=golang-dev
https://golang.org/cl/4627065
2011-07-02 14:07:06 +10:00
Andrew Gerrand
72a73198df goinstall: documentation for new remote repository behavior and tweaks
R=rsc, julian
CC=golang-dev
https://golang.org/cl/4642049
2011-07-02 14:05:43 +10:00
Russ Cox
1eb656784c 5c, 6c: fix build
R=ken2
CC=golang-dev
https://golang.org/cl/4668049
2011-07-01 11:13:38 -04:00
Yasuhiro Matsumoto
21efa147ba cmd/goinstall: try to access via https.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4667051
2011-07-01 10:11:33 -04:00
Lucio De Re
b0449c50f7 8c: fixes for Plan 9 build
8c/gc.h:
. Added <u.h> header.
. Added "lD" pragma for "*Adr" to supplement "D".

8c/swt.c:
. Removed unreferenced "thestring" arguments in Bprint() calls.

cc/acid.c:
cc/com.c:
cc/com64.c:
cc/dcl.c:
cc/scon.c:
. Added <u.h>, required by "cc.h".

cc/bits.c:
. Added <u.h>, required by "cc.h".

cc/cc.h:
. Removed <u.h> and <ctype.h>.
. Added "O" pragma to accept "uint" as well as "int".
. Added new "U" pragma (char *).

cc/cc.y:
. Added <u.h> before <stdio.h> (and "cc.h").

cc/dpchk.c:
cc/mac.c:
. Added <u.h> and <ctype.h>.

cc/funct.c:
. Added <u.h>, required by "cc.h".

cc/godefs.c
. Added <u.h>, required by "cc.h".
. Dropped unused "t" argument in Bprint().

cc/lex.c:
. Added <u.h> and <ctype.h>.
. Removed unnecessary incrementation.
. Changed exit() invocations with exits().

cc/omachcap.c:
. Added <u.h>, required by "cc.h".
. USED(n) for unused argument to machcap().

cc/sub.c:
. Added <u.h> and <ctype.h>.

R=rsc
CC=golang-dev
https://golang.org/cl/4629070
2011-07-01 09:50:24 -04:00
Russ Cox
a809abafa5 govet: automate test
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4629084
2011-06-30 10:26:11 -04:00
Julian Phillips
8ffbc4016a goinstall: Add support for generic hosts using special import form
This change extends goinstall to support "magic" package names of the
form:
        <host>/<repo>.<vcs>/<path>

Where <host> is the hostname, <repo> the path to the repository, <vcs>
the type of vcs (git, hg, bzr or svn), and <path> is the path inside the
repository that contains the source code for the package.

For example: "example.com/pub/foo.hg/src" means download the Mercurial
repository at either pub/foo.hg or pub/foo from example.com and then
build and install the source files from src inside the repository
checkout.

Repositories on the built-in hostings sites (github, bitbucket,
launchpad and googlecode) must still use the old form (i.e.
github.com/xxx/yyy.git/src will be rejected).

R=adg, rsc
CC=golang-dev
https://golang.org/cl/4626064
2011-06-30 18:54:53 +10:00
Russ Cox
25733a94fd reflect: support for struct tag use by multiple packages
Each package using struct field tags assumes that
it is the only package storing data in the tag.
This CL adds support in package reflect for sharing
tags between multiple packages.  In this scheme, the
tags must be of the form

        key:"value" key2:"value2"

(raw strings help when writing that tag in Go source).

reflect.StructField's Tag field now has type StructTag
(a string type), which has method Get(key string) string
that returns the associated value.

Clients of json and xml will need to be updated.
Code that says

        type T struct {
                X int "name"
        }

should become

        type T struct {
                X int `json:"name"`  // or `xml:"name"`
        }

Use govet to identify struct tags that need to be changed
to use the new syntax.

R=r, r, dsymonds, bradfitz, kevlar, fvbommel, n13m3y3r
CC=golang-dev
https://golang.org/cl/4645069
2011-06-29 09:52:34 -04:00
Robert Hencke
83550f0728 gofix: fixes for os/signal changes
Fixes #1971.

R=adg, rsc
CC=golang-dev
https://golang.org/cl/4630056
2011-06-29 16:44:47 +10:00
Russ Cox
ff4518da17 gc: fix package quoting logic
The decision for when to say "hash/crc32".New instead of
crc32.New in an error was double-counting imports
from different packages or indirect imports, so it was
quoting even when there was no ambiguity.

R=ken2
CC=golang-dev
https://golang.org/cl/4645070
2011-06-28 23:58:35 -04:00
Gustavo Niemeyer
cf143e9dbf ld: fix ELF strip by removing overlap of sections
The gosymtab and gopclntab sections were pointing to the proper
data, but that data was already owned by the rodata section.
Some ELF references explicitly prohibit multiple sections from
owning the same data, and strip behaves accordingly.

The data for these sections was moved to after rodata, and the
gosymtab and gopclntab sections now own their respective ranges.

This change makes strip happy both with and without -s being
provided at link time.  Note that it won't remove these sections
because they are still allocated, and that's by design since
they are necessary at runtime for generating proper backtraces
and similar introspection operations.

Unlike the previous behavior, -s will now maintain zero-sized
gosymtab and gopclntab sections.  This makes the implementation
slightly cleaner.

Fixes #1242.

NOTE: Tested on Linux amd64/386/arm only.

R=ality, rsc
CC=golang-dev
https://golang.org/cl/4639077
2011-06-28 22:28:30 +01:00
Russ Cox
d0ac84fe40 cc: broken return is an error, not a warning
R=ken2
CC=golang-dev
https://golang.org/cl/4626081
2011-06-28 16:00:55 -04:00
Russ Cox
fe2ccb53c0 cc: add two new #pragma varargck
#pragma varargck countpos f 1
says that the first argument to f is
the count of variadic arguments that follow.

#pragma varargck type f t
says that t is one of the allowed types for
a variadic argument to f.
(can be repeated)

combined, these can be used to check the
runtime.stdcall functions in the windows port
or in any other port that needs a vararg list of
uintptrs even on a 64-bit platform (where it is
very easy to pass a less-than-uintptr in the ...).

demo:

typedef unsigned int uintptr;

#pragma varargck countpos f 1
#pragma varargck type f uintptr
#pragma varargck type f void*

int f(int count, ...);

void *v;
char *p;

void
main(void)
{
        f(1, v);  // ok
        f(1, main);  // ok
        f(1, p);  // ok
        f(2, v, v);  // ok

        f(2, v);  // found 1 argument after count 2
        f(1, 'a');  // invalid type INT in call to f
        f(1, 0);  // invalid type INT in call to f
}

R=ken, r, alex.brainman
CC=golang-dev
https://golang.org/cl/4634103
2011-06-27 22:42:34 -04:00
Rob Pike
ebb1566a46 strings.Split: make the default to split all.
Change the signature of Split to have no count,
assuming a full split, and rename the existing
Split with a count to SplitN.
Do the same to package bytes.
Add a gofix module.

R=adg, dsymonds, alex.brainman, rsc
CC=golang-dev
https://golang.org/cl/4661051
2011-06-28 09:43:14 +10:00
Russ Cox
6aaa86ff66 gc: avoid package name ambiguity in error messages
Fixes #2006.

R=ken2
CC=golang-dev
https://golang.org/cl/4643056
2011-06-27 18:44:30 -04:00
Brad Fitzpatrick
19f795042a http: add FileSystem interface, make FileServer use it
Permits serving from virtual filesystems, such as files linked
into a binary, or from a zip file.

Also adds a gofix for:

http.FileServer(root, prefix) -> http.StripPrefix(prefix, http.FileServer(http.Dir(root)))

R=r, rsc, gri, adg, dsymonds, r, gri
CC=golang-dev
https://golang.org/cl/4629047
2011-06-27 15:26:36 -07:00
Lucio De Re
6bcfb95168 8a: fixes for Plan 9 build
8a/a.h:
. Removed <u.h> and <libc.h> includes as they work better in "a.y".
. Made definition of EOF conditional as it's defined in the Plan 9
  header files, but not elsewhere.

8a/a.y:
. Added <u.h> and <libc.h> because <stdio.h> in Plan 9 needs them.
  Sequence <u.h>, <stdio.h>, <libc.h> recommended by RSC.

8a/lex.c:
. Added <u.h> and <libc.h> as now needed by "a.h".
. Dropped <ctype.h>.

cc/lexbody:
. exit() -> exits().
. Dropped unwanted incrementation.

cc/macbody:
. Adjusted a few format specifications.

R=rsc
CC=golang-dev
https://golang.org/cl/4644047
2011-06-27 14:42:18 -04:00
Anthony Martin
10d0dffd76 ld: elide the Go symbol table when using -s
R=rsc, n13m3y3r, gustavo
CC=golang-dev
https://golang.org/cl/4661050
2011-06-27 14:39:38 -04:00
Dmitriy Vyukov
9843ca5e2b gotest: add -test.benchtime and -test.cpu flags.
-test.benchtime allows to specify benchmark execution time.
-test.cpu allows to execute tests/benchmarks for several
values of GOMAXPROCS.

R=r, r, rsc
CC=golang-dev
https://golang.org/cl/4662046
2011-06-27 13:31:40 -04:00
Russ Cox
9dd354c63f 5l, 6l, 8l: drop use of ed during build
build runs with chmod 0 /bin/ed now

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4635071
2011-06-27 12:03:19 -04:00
Robert Hencke
da19831c17 gofix: fixes for path/filepath changes
Fixes #1970.

R=rsc, r
CC=golang-dev
https://golang.org/cl/4650050
2011-06-26 11:24:28 +10:00
Robert Hencke
69905c6213 gofix: fixes for sort changes
Fixes #1969.

R=gri, rsc, r
CC=golang-dev
https://golang.org/cl/4634076
2011-06-26 08:48:53 +10:00
Robert Griesemer
f70e8ed0f3 ebnflint: better handling of stdin
- don't rely on /dev/stdin as the name for standard input
- employ EBNF extraction if the source contains tags

"cat source.html | ebnflint" works now

R=r
CC=golang-dev
https://golang.org/cl/4641075
2011-06-24 17:29:19 -07:00
Andrew Gerrand
b4bab6f8b3 goinstall: build with make by default, add -make flag
This is a temporary measure until go/build can build cgo packages.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4627056
2011-06-24 13:01:17 +10:00
Russ Cox
c475c3071a 5c: do not use R9 and R10
This program used to use R9 and R10.
Now it fails to compile (out of registers).
I used to know a simpler test but can't remember it.

Learned something new: Rietveld refuses change
list descriptions bigger than 10 kB.

int sum(int x, int y, int z, int w) {
        return
        (((((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))))%
        (((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))))*
        ((((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))))%
        (((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))))))*
        (((((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))))%
        (((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))))*
        ((((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))))%
        (((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))))/
        ((((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))|
        (((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w))&
        ((x*y+z*w|x*y+z*w)^
        (x*y+z*w|x*y+z*w)))))))
        ;
}

R=ken2
CC=golang-dev
https://golang.org/cl/4650053
2011-06-22 23:22:36 -04:00
Gustavo Niemeyer
89d334ffe1 ld: don't attempt to build dynamic sections unnecessarily
This prevents ld from generating zeroed symtab entries for
sections that aren't going to be generated because dynamic
linkage has been disabled (-d was used or no dynamic libs
were seen).  Even though they were not explicitly added by
doelf, the section creation process was making them
reachable again.

The windows head is being disconsidered for this because
apparently it's not taking into account debug['d'].

This makes elflint 0.1% happier.

R=golang-dev, rsc, gustavo
CC=golang-dev
https://golang.org/cl/4638050
2011-06-22 15:12:22 -04:00
Robert Griesemer
712fb6dcd3 os.Error API: don't export os.ErrorString, use os.NewError consistently
This is a core API change.

1) gofix misc src
2) Manual adjustments to the following files under src/pkg:
   gob/decode.go
   rpc/client.go
   os/error.go
   io/io.go
   bufio/bufio.go
   http/request.go
   websocket/client.go
as well as:
   src/cmd/gofix/testdata/*.go.in (reverted)
   test/fixedbugs/bug243.go
3) Implemented gofix patch (oserrorstring.go) and test case (oserrorstring_test.go)

Compiles and runs all tests.

R=r, rsc, gri
CC=golang-dev
https://golang.org/cl/4607052
2011-06-22 10:52:47 -07:00
Lucio De Re
10b5519d3a 8l: more fixes for Plan 9
Once these changes are effected, it is possible to construct
"8l" native on a (386?) Plan 9 system, albeit with assistance
from modules such as mkfiles that are not (yet) included in any
public patches.

8l/asm.c:
. Corrected some format qualifiers.

8l/list.c:
. Cast a print() argument to (int) to match the given format.
  It may be possible to change the format (%R), but I have not
  looked into it.

8l/obj.c:
. Removed some unused code.

8l/span.c:
. Removed unnecessary incrementation on "bp".
. Corrected some format qualifiers.

ld/data.c:
. Corrected some format qualifiers.
. Cast print argument to (int): used as field size.
. Use braces to suppress warning about empty if() statements.

ld/dwarf.c:
. Trivial spelling mistake in comment.

ld/ldelf.c:
. Added USED() statements to silence warnings.
. Dropped redundant address (&) operators.
. corrected some format qualifiers.
. Cast to (int) for switch selection variable.

ld/macho.c:
. Added USED() statements to silence warnings.

ld/ldpe.c:
. Added USED() statements to silence warnings.
. More careful use of "sect" variable.
. Corrected some format qualifiers.
. Removed redundant assignments.
. Minor fix dropped as it was submitted separately.

ld/pe.c:
. Dropped <time.h> which is now in <u.h>.
. Dropped redundant address (&) operators.
. Added a missing variable initialisation.

ld/symtab.c:
. Added USED() statements to silence warnings.
. Removed redundant incrementation.
. Corrected some format qualifiers.

All the above have been tested against a (very) recent release
and do not seem to trigger any regressions.

All review suggestions have been incorporated.

R=rsc
CC=golang-dev
https://golang.org/cl/4633043
2011-06-21 12:14:32 -04:00
Robert Hencke
b88e669a8f nacl, tiny: remove vestiges
R=golang-dev, r, rsc
CC=golang-dev
https://golang.org/cl/4635053
2011-06-21 12:02:40 -04:00
Russ Cox
d6be71c788 gopprof: update list of memory allocators
Also import new weblist command from Google version.

R=r, bradfitz
CC=golang-dev
https://golang.org/cl/4650048
2011-06-21 11:27:08 -04:00
Andrew Gerrand
f338d9f73b goinstall: undo 1ad616fb313d (always rebuild...)
CL 4627051 is a better way of doing the same thing.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4654045
2011-06-21 17:13:16 +10:00
Andrew Gerrand
ceae2c9301 goinstall: undo repo peeking code
Keeping the Julian's good refactoring work.

R=rsc
CC=golang-dev
https://golang.org/cl/4638049
2011-06-21 11:28:15 +10:00
Anthony Martin
028f74f827 5g, 6g, 8g: fix comments in method call generation
R=golang-dev
CC=golang-dev
https://golang.org/cl/4652042
2011-06-20 14:49:29 -04:00
Anthony Martin
12b2269860 5g, 5l: fix more set but not used warnings
These are present when building with gcc 4.6.

R=golang-dev, dave
CC=golang-dev, lvd
https://golang.org/cl/4636047
2011-06-20 14:18:04 -04:00
Andrew Gerrand
f22e5cfc6d goinstall: update doc.go
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4645048
2011-06-20 16:39:16 +10:00
Andrew Gerrand
f3a7dad654 goinstall: s/vlogf/printf/
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4628050
2011-06-20 14:44:14 +10:00
Andrew Gerrand
e068b85bea goinstall: wait for all commands to finish instead of timeout
goinstall: make ".git" repo suffix optional

R=golang-dev, r, r
CC=golang-dev
https://golang.org/cl/4643048
2011-06-20 14:12:23 +10:00
Julian Phillips
c319fb07bc goinstall: Add support for arbitary code repositories
Extend goinstall to support downloading from any hg/git/svn/bzr hosting
site, not just the standard ones.  The type of hosting is automatically
checked by trying all the tools, so the import statement looks like:

  import "example.com/mything"

Which will work for Mercurial (http), Subversion (http, svn), Git (http,
git) and Bazaar (http, bzr) hosting.

All the existing package imports will work through this new mechanism,
but the existing hard-coded host support is left in place to ensure
there is no change in behaviour.

R=golang-dev, bradfitz, fvbommel, go.peter.90, n13m3y3r, adg, duperray.olivier
CC=golang-dev
https://golang.org/cl/4650043
2011-06-20 13:00:43 +10:00
Robert Hencke
a5b5e2b79e godefs: rudimentary tests
currently only defined for darwin

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4528123
2011-06-20 11:54:07 +10:00
Rob Pike
783c46b197 8a: delete dreg l.s
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4631053
2011-06-20 11:53:41 +10:00
Dave Cheney
cbb2d8e20e cc: nit: silence comment warnings
R=golang-dev, r, r
CC=golang-dev
https://golang.org/cl/4648043
2011-06-19 13:58:08 +10:00
Joe Poirier
26b6a97c15 Make.ccmd: link with mach lib,
remove explicit linking in make files

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4629051
2011-06-19 13:57:22 +10:00
Andrew Gerrand
c967ba0210 goinstall: always rebuild a package after its dependencies are built
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4627047
2011-06-19 09:36:45 +10:00
Russ Cox
cf9f380499 gc: unsafe.Alignof, unsafe.Offsetof, unsafe.Sizeof now return uintptr
R=ken2
CC=golang-dev
https://golang.org/cl/4640045
2011-06-17 16:12:14 -04:00
Russ Cox
b96ff8458c 5g, 8g: fix build
R=ken2
CC=golang-dev
https://golang.org/cl/4627045
2011-06-17 16:05:00 -04:00
Russ Cox
7f4c5ea7d8 gc: implement goto restriction
Remove now-unnecessary zeroing of stack frames.

R=ken2
CC=golang-dev
https://golang.org/cl/4641044
2011-06-17 15:25:05 -04:00
Russ Cox
e852202f37 gc: descriptive panic for nil pointer -> value method call
R=ken2
CC=golang-dev
https://golang.org/cl/4646042
2011-06-17 15:23:27 -04:00
Russ Cox
21e75da486 respect goto restrictions
R=gri
CC=golang-dev
https://golang.org/cl/4625044
2011-06-17 06:07:13 -04:00
Alex Brainman
eaa082f691 8l: minor fix discovered by lucio
R=lucio.dere, vcc.163, bradfitz
CC=golang-dev
https://golang.org/cl/4645044
2011-06-17 15:55:54 +10:00
Andrew Gerrand
4340b57d88 goinstall, go/build: support building cgo packages
Fixes #1962.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4636044
2011-06-17 11:15:54 +10:00
Alex Brainman
c562fbc44e cgo: make file path work for windows
R=golang-dev, mattn.jp, adg
CC=golang-dev
https://golang.org/cl/4634043
2011-06-17 10:17:33 +10:00
Brad Fitzpatrick
6e9b1a78ff http: make Headers be source of truth
Previously Request and Response had redundant fields for
Referer, UserAgent, and cookies which caused confusion and
bugs.  It also didn't allow us to expand the package over
time, since the way to access fields would be in the Headers
one day and promoted to a field the next day.  That would be
hard to gofix, especially with code ranging over Headers.

After a discussion on the mail package's design with a similar
problem, we've designed to make the Headers be the source of
truth and add accessors instead.

Request:
change: Referer -> Referer()
change: UserAgent -> UserAgent()
change: Cookie -> Cookies()
new: Cookie(name) *Cookie
new: AddCookie(*Cookie)

Response:
change: Cookie -> Cookies()

Cookie:
new: String() string

R=rsc
CC=golang-dev
https://golang.org/cl/4620049
2011-06-16 13:02:28 -07:00
Russ Cox
5a5a7b5163 6g, 8g: fix goto fix
R=ken2
CC=golang-dev
https://golang.org/cl/4632041
2011-06-16 01:25:49 -04:00
Russ Cox
5d9dbe19a7 gc: work around goto bug
R=ken2
CC=golang-dev
https://golang.org/cl/4629042
2011-06-16 00:18:43 -04:00
Robert Griesemer
fb9ea79916 godoc: replace direct OS file system accesses in favor
of accesses via a FileSystem interface.

Preparation for appengine version which gets its files
via a snapshot or zip file and uses a corresponding
FileSystem implementation.

R=rsc, r
CC=golang-dev
https://golang.org/cl/4572065
2011-06-15 14:06:35 -07:00
Scott Lawrence
bee3b0358c gofix: Fix inconsistent indentation in help output
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4572066
2011-06-15 21:07:21 +10:00
Andrew Gerrand
db5a4ffc2a goinstall: use go/make package to scan and build packages
R=rsc, n13m3y3r, kevlar
CC=golang-dev
https://golang.org/cl/4515180
2011-06-15 13:28:35 +10:00
Lucio De Re
340251e43d build: fix header files for Plan 9
The "elf.h" header changes involve only comments, the released
Plan 9 C preprocessing function does not cope with multiline
comments following the #define keyword.  All multiline comments
have been moved to the line above the associated definition.
Sigh!  Fixing the Plan 9 compiler is not an option.

<time.h> does not exist in the Plan 9 Native library.  I have
moved it from src/cmd/ld/pe.h to include/u.h. RSC correctly points
out that this copy of <u.h> is not the one used to compile the
Go release on Plan 9 platforms.

R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/4574042
2011-06-14 14:14:11 -04:00
Gustavo Niemeyer
a84e9d01f0 ld: make .rodata section read-only
Fixes the respective warning from elflint.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4607048
2011-06-14 15:13:54 -03:00
Wei Guangjing
9e2ffc315f ld: fix link Windows PE __declspec(dllimport) symbol
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4568077
2011-06-14 11:05:59 -04:00
Luuk van Dijk
2ad42a8249 gc: frame compaction for arm.
Required moving some parts of gc/pgen.c to ?g/ggen.c

on linux tests pass for all 3 architectures, and
frames are actually compacted (diagnostic code for
that has been removed from the CL).

R=rsc
CC=golang-dev
https://golang.org/cl/4571071
2011-06-14 17:03:37 +02:00
Russ Cox
9968090ddd cgo: handle new Apple LLVM-based gcc from Xcode 4.2
That gcc does not include enumerator names and values
in its DWARF debug output.  Create a data block from which
we can read the values instead.

Fixes #1881.

R=iant
CC=golang-dev
https://golang.org/cl/4607045
2011-06-13 14:43:54 -04:00
Luuk van Dijk
d164b6081d ld: dwarf emit filenames in debug_line header instead of as extended opcodes.
Makes it possible for older tools like objdump to find the filenames,
fixes  objdump -d -l --start-address=0x400c00 --stop-address=0x400c36 6.out
fixes #1950

R=rsc
CC=golang-dev
https://golang.org/cl/4609043
2011-06-13 16:56:43 +02:00
Stephen Ma
b4bb970e18 gc: handle go print() and go println()
Fixes #1952.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4611041
2011-06-13 22:50:51 +10:00
Dave Cheney
86183e43c9 gopack: make unused page function a fatal error
R=iant, rsc
CC=golang-dev
https://golang.org/cl/4601051
2011-06-09 22:41:19 -04:00
Dave Cheney
aac6afbb11 gopack: remove warning from the use of mktemp
gcc-4.6 considers mktemp to be racey

R=golang-dev, rsc, iant
CC=golang-dev
https://golang.org/cl/4602050
2011-06-09 18:04:26 -07:00
Russ Cox
1fddbab736 5l: fix softfloat nits
Need to load math.a so that sqrtGoC is available.
Also was missing prototype.

R=ken2
CC=golang-dev
https://golang.org/cl/4517148
2011-06-09 18:38:25 -04:00
Russ Cox
900c5fa98e gc: compactframe breaks arm - fix build
R=lvd
CC=golang-dev
https://golang.org/cl/4591063
2011-06-09 18:28:27 -04:00
Luuk van Dijk
fd2e24727e gc: nit
R=rsc
CC=golang-dev
https://golang.org/cl/4604041
2011-06-10 00:08:57 +02:00
Russ Cox
3e57d7f7bf 5l: delete dead code
Thumb code and ARM pre-V4 code is unused,
unmaintained, and almost certainly wrong by now.
Every time I try to change 5l I have to sort out
what's dead code and what's not.

30% of lines of code in this directory deleted.

R=ken2
CC=golang-dev
https://golang.org/cl/4601049
2011-06-09 18:07:56 -04:00
Luuk van Dijk
2ac375b2df gc: compact stackframe
After allocparams and walk, remove unused auto variables
and re-layout the remaining in reverse alignment order.

R=rsc
CC=golang-dev
https://golang.org/cl/4568068
2011-06-10 00:02:34 +02:00
Fan Hongjian
fc41e621e8 math: add sqrt_arm.s and sqrtGoC.go as fallback to soft fp emulation
5a: add SQRTF and SQRTD
5l: add ASQRTF and ASQRTD

Use ARMv7 VFP VSQRT instruction to speed up math.Sqrt

R=rsc, dave, m
CC=golang-dev
https://golang.org/cl/4551082
2011-06-09 17:19:08 -04:00
Russ Cox
17ca32e9db gc: nits
R=ken2
CC=golang-dev
https://golang.org/cl/4572052
2011-06-09 11:44:28 -04:00
Robert Griesemer
013cfea362 gofmt: update test script so that it passes again
(TODO: should replace this with a Go program, eventually)

R=bradfitz
CC=golang-dev
https://golang.org/cl/4584047
2011-06-08 12:05:40 -07:00
Robert Griesemer
a609a6bb63 ebnf: follow EBNF for EBNF faithfully
Apply analogous changes in godoc/spec.go.

Fixes #1829.

R=nmessenger, r
CC=golang-dev
https://golang.org/cl/4528127
2011-06-08 09:10:30 -07:00
Dave Cheney
6998ea2982 gc: alternative clang compatible abort.
Tested on clang 2.9/amd64

R=rsc, jeff, r
CC=golang-dev
https://golang.org/cl/4517143
2011-06-08 10:46:15 +10:00
Brad Fitzpatrick
be48115f48 gofix: fix diff regression from exec change
Also pass -u to diff to be consistent with gofmt.

Fixes #1619

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/4591041
2011-06-07 11:53:47 -07:00
Robert Hencke
8cd7aac223 godefs: do not assume forward type references are enums
Fixes #1466.

R=mikioh.mikioh, rsc
CC=golang-dev
https://golang.org/cl/4564043
2011-06-07 14:28:10 -04:00
Anthony Martin
c5030e5f4b ld: fix and simplify ELF symbol generation
I started looking at this code because the nm in GNU
binutils was ignoring the first symbol in the .symtab
section.  Apparently, the System V ABI reserves the
first entry and requires all fields inside to be set
to zero.

The list of changes is as follows:

  · reserve the first symbol entry (as noted above)
  · fix the section indices for .data and .bss symbols
  · factor out common code for Elf32 and Elf64
  · remove the special case for elfsymo in [568]l/asm.c:/^asmb
  · add the "etext" symbol in 6l
  · add static symbols

R=rsc
CC=golang-dev
https://golang.org/cl/4524075
2011-06-07 14:26:16 -04:00
Caine Tighe
7c19d88b0f gc/lex.c: fix formatting of #include statement
R=rsc, gri
CC=golang-dev
https://golang.org/cl/4564048
2011-06-07 09:57:26 -07:00
Brad Fitzpatrick
687102ed4f gofmt: fix -d regression from exec change
Fixes #1916

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/4590041
2011-06-07 09:38:04 -07:00
Dave Cheney
4881e7744a cgo: support non intel gcc machine flags
R=adg
CC=golang-dev
https://golang.org/cl/4528124
2011-06-07 16:59:35 +10:00
Dave Cheney
60a4b5e4db gc: enable building under clang/2.9
To build under clang, pass the path to clang in CC when
calling ./make.bash

CC=/opt/llvm/llvm-2.9/bin/clang ./make.bash

Credit goes to jmhodges for suggestions.

R=jeff, r, ality
CC=golang-dev
https://golang.org/cl/4527098
2011-06-06 19:53:44 +10:00
Russ Cox
84f291b1bd 8g: compute register liveness during regopt
Input code like

0000 (x.go:2) TEXT    main+0(SB),$36-0
0001 (x.go:3) MOVL    $5,i+-8(SP)
0002 (x.go:3) MOVL    $0,i+-4(SP)
0003 (x.go:4) MOVL    $1,BX
0004 (x.go:4) MOVL    i+-8(SP),AX
0005 (x.go:4) MOVL    i+-4(SP),DX
0006 (x.go:4) MOVL    AX,autotmp_0000+-20(SP)
0007 (x.go:4) MOVL    DX,autotmp_0000+-16(SP)
0008 (x.go:4) MOVL    autotmp_0000+-20(SP),CX
0009 (x.go:4) CMPL    autotmp_0000+-16(SP),$0
0010 (x.go:4) JNE     ,13
0011 (x.go:4) CMPL    CX,$32
0012 (x.go:4) JCS     ,14
0013 (x.go:4) MOVL    $0,BX
0014 (x.go:4) SHLL    CX,BX
0015 (x.go:4) MOVL    BX,x+-12(SP)
0016 (x.go:5) MOVL    x+-12(SP),AX
0017 (x.go:5) CDQ     ,
0018 (x.go:5) MOVL    AX,autotmp_0001+-28(SP)
0019 (x.go:5) MOVL    DX,autotmp_0001+-24(SP)
0020 (x.go:5) MOVL    autotmp_0001+-28(SP),AX
0021 (x.go:5) MOVL    autotmp_0001+-24(SP),DX
0022 (x.go:5) MOVL    AX,(SP)
0023 (x.go:5) MOVL    DX,4(SP)
0024 (x.go:5) CALL    ,runtime.printint+0(SB)
0025 (x.go:5) CALL    ,runtime.printnl+0(SB)
0026 (x.go:6) RET     ,

is problematic because the liveness range for
autotmp_0000 (0006-0009) is nested completely
inside a span where BX holds a live value (0003-0015).
Because the register allocator only looks at 0006-0009
to see which registers are used, it misses the fact that
BX is unavailable and uses it anyway.

The n->pun = anyregalloc() check in tempname is
a workaround for this bug, but I hit it again because
I did the tempname call before allocating BX, even
though I then used the temporary after storing in BX.
This should fix the real bug, and then we can remove
the workaround in tempname.

The code creates pseudo-variables for each register
and includes that information in the liveness propagation.
Then the regu fields can be populated using that more
complete information.  With that approach, BX is marked
as in use on every line in the whole span 0003-0015,
so that the decision about autotmp_0000
(using only 0006-0009) still has all the information
it needs.

This is not specific to the 386, but it only happens in
generated code of the form

        load R1
        ...
        load var into R2
        ...
        store R2 back into var
        ...
        use R1

and for the most part the other compilers generate
the loads for a given compiled line before any of
the stores.  Even so, this may not be the case everywhere,
so the change is worth making in all three.

R=ken2, ken, ken
CC=golang-dev
https://golang.org/cl/4529106
2011-06-03 14:10:39 -04:00
Lucio De Re
9baaa6f742 8l, ld: Initial adjustments for Plan 9 native compilation of 8l
These changes are not particularly invasive and have been tested
as broadly as possible.

8l/l.h:
  -	#pragma varargck: added some, removed duplicates.

ld/dwarf.c:
  -	As Plan 9 has no NULL, changed all occurrences to nil.
  -	Added USED(size); where necessary.
  -	Added (void) argument in definition of finddebugruntimepath().
  -	Plan 9 compiler was complaining about multiple
        assignments, repeaired by breaking up the commands.
  -	Correction: havedynamic = 1; restored.

ld/go.c:
  -	Needed USED(file); in two functions.
  -	Removed unused assignments flagged by the Plan 9 compiler.

ld/lib.c:
  -	Replaced unlink() with remove() which seems available everywhere.
  -	Removed USED(c4); and USED(magic) no longer required.
  -	Removed code flagged as unused by the Plan 9 compiler.
  -	Added attributes to a number of format strings.

R=rsc
CC=golang-dev
https://golang.org/cl/4435047
2011-06-03 13:20:31 -04:00
Luuk van Dijk
ab8ed7f8dd gc: renamed walkdef to typecheckdef and moved from walk to typedef.
also inlined a typechecking function in dcl away.

R=rsc
CC=golang-dev
https://golang.org/cl/4550115
2011-06-03 17:44:02 +02:00
Luuk van Dijk
56668283f1 gc: allow tags on parameters in export section of object files.
This is in preparation of escape analysis; function parameters
can now be tagged with interesting bits by the compiler by
assigning to n->note.

tested by having typecheck put a fake tag on all parameters of
pointer type and compiling the tree.

R=rsc
CC=golang-dev
https://golang.org/cl/4524092
2011-06-03 03:54:56 +02:00
Luuk van Dijk
e59aa8ea4a gc: typecheck the whole tree before walking. preparation for some escape-analysis related changes.
R=rsc
CC=golang-dev
https://golang.org/cl/4528116
2011-06-02 18:48:17 +02:00
Brad Fitzpatrick
f259f6ba0a exec: new API, replace Run with Command
This removes exec.Run and replaces exec.Cmd with a
new implementation. The new exec.Cmd represents
both a currently-running command and also a command
being prepared. It has a good zero value.

You can Start + Wait on a Cmd, or simply Run it.
Start (and Run) deal with copying stdout, stdin,
and stderr between the Cmd's io.Readers and
io.Writers.

There are convenience methods to capture a command's
stdout and/or stderr.

R=r, n13m3y3r, rsc, gustavo, alex.brainman, dsymonds, r, adg, duzy.chan, mike.rosset, kevlar
CC=golang-dev
https://golang.org/cl/4552052
2011-06-01 15:26:53 -07:00
Luuk van Dijk
2c4edb0eea gc: make merely referencing an outer variable in a closure not force heapallocation.
before: runtime_test.BenchmarkCallClosure1       20000000              135 ns/op
after:  runtime_test.BenchmarkCallClosure1      500000000                6 ns/op

R=rsc
CC=golang-dev
https://golang.org/cl/4527091
2011-06-01 17:02:43 +02:00
Rob Pike
73d57642a4 filepath: remove string constants. They are unnecessary.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4527090
2011-06-01 13:06:04 +10:00
Andrew Gerrand
581bd378ec gobuilder: include file missing from change, fix build
R=golang-dev
CC=golang-dev
https://golang.org/cl/4539099
2011-06-01 11:56:46 +10:00
Andrew Gerrand
9f0cabfab9 goinstall: document GOPATH and support relative/absolute installs
goinstall: more verbose logging with -v

Fixes #1901.

R=rsc, n13m3y3r
CC=golang-dev
https://golang.org/cl/4524078
2011-06-01 10:48:15 +10:00
Russ Cox
15dcdf751c gc: fix m[x], _ = y.(T)
Fixes #1900.

R=ken2
CC=golang-dev
https://golang.org/cl/4561053
2011-05-31 15:52:04 -04:00
Anthony Martin
5b62ba14c4 gc: disallow ... in type conversions
Fixes #1866.

R=bradfitz, rsc
CC=golang-dev
https://golang.org/cl/4548073
2011-05-31 15:41:47 -04:00
Russ Cox
5ab096d030 gc: implement new shift rules
The change is that 1.0<<2 is now okay.

R=ken2
CC=golang-dev
https://golang.org/cl/4524084
2011-05-31 15:05:40 -04:00
Luuk van Dijk
9b82408f6d gc: elide call to runtime.closure for function literals called in-place.
before:
runtime_test.BenchmarkCallClosure        5000000               499 ns/op
runtime_test.BenchmarkCallClosure1       5000000               681 ns/op

after:
runtime_test.BenchmarkCallClosure       500000000                5 ns/op
runtime_test.BenchmarkCallClosure1       10000000              160 ns/op

R=rsc
CC=golang-dev
https://golang.org/cl/4515167
2011-05-31 20:52:21 +02:00
Anthony Martin
67b4db9e9e gc: check parameter declarations in interface fields
Fixes #1663.
Fixes #1871.

R=rsc, lstoakes
CC=golang-dev
https://golang.org/cl/4530084
2011-05-31 13:41:32 -04:00
Russ Cox
2c6a2a9773 goinstall: skip standard packages
R=adg, n13m3y3r
CC=golang-dev
https://golang.org/cl/4526084
2011-05-30 18:23:16 -04:00
Robert Hencke
3fbd478a8a pkg: spelling tweaks, I-Z
also, a few miscellaneous fixes to files outside pkg

R=golang-dev, dsymonds, mikioh.mikioh, r
CC=golang-dev
https://golang.org/cl/4517116
2011-05-30 18:02:59 +10:00
Alex Brainman
9107b530d8 goinstall: use bash to execute gomake
R=golang-dev, r, adg
CC=golang-dev
https://golang.org/cl/4551074
2011-05-30 16:15:08 +10:00
Alex Brainman
b7582852f6 gotest, pkg/exec: use bash instead of sh to execute shell scripts on windows
As suggested by dho, iant2.

R=golang-dev, rsc
CC=devon.odell, golang-dev, iant
https://golang.org/cl/4515147
2011-05-28 21:26:03 +10:00
Gustavo Niemeyer
a825e8a69f cgo: restrict #cgo directives to prevent shell expansion
Fixes issue #1879.

Directives were not directly expanded, but since their
content ended up in makefiles, further expansion would
take place there.  This prevents such artifacts by
restricting the set of characters that may be used in
a directive value.

To build the list of safe characters I went through the
contents of /usr/lib/pkgconfig and extracted LDFLAGS
and CFLAGS information, so hopefully this is a
reasonable default to get started.

R=rsc
CC=golang-dev
https://golang.org/cl/4532092
2011-05-27 08:46:51 -03:00
Gustavo Niemeyer
bddb75127f cgo: support pkg-config for flags and libs
Fixes issue #1853.

R=golang-dev, mattn.jp, adg
CC=golang-dev
https://golang.org/cl/4550084
2011-05-26 22:19:23 -03:00
Ian Lance Taylor
9ef8ebafe4 gc: patch y.tab.c to fix build when using Bison 2.5
Fixes #1843.

R=rsc
CC=golang-dev
https://golang.org/cl/4535101
2011-05-26 11:28:23 -07:00
Russ Cox
e94eb38975 gc: typo
R=ken2
CC=golang-dev
https://golang.org/cl/4539086
2011-05-25 10:19:50 -04:00
Russ Cox
2286471651 5g: alignment fixes
Makes all.bash work after echo 4 >/proc/cpu/alignment,
which means kill the process on an unaligned access.

The default behavior on DreamPlug/GuruPlug/SheevaPlug
is to simulate an ARMv3 and just let the unaligned accesses
stop at the word boundary, resulting in all kinds of surprises.

Fixes #1240.

R=ken2
CC=golang-dev
https://golang.org/cl/4551064
2011-05-25 10:18:49 -04:00
Russ Cox
831c684434 5l: fix build
R=ken2
CC=golang-dev
https://golang.org/cl/4538095
2011-05-25 09:44:05 -04:00
Russ Cox
64b497c62a ld: add -w to disable dwarf, make errors obviously from dwarf
Reenable dwarf output on Mac.
Was writing headers but no actual dwarf data.

Fixes #1877 (accidentally).
Workaround for issue 1878.

R=lvd
CC=golang-dev
https://golang.org/cl/4515139
2011-05-25 08:25:33 -04:00
Wei Guangjing
2ad58d48fb 8l: emit resources (.rsrc) in Windows PE.
R=alex.brainman, rsc
CC=golang-dev, vcc.163
https://golang.org/cl/4516055
2011-05-25 07:53:00 -04:00
Russ Cox
d2b2b3f4a8 6l, 8l: fix Mach-O binaries with many dynamic libraries
R=ken2
CC=golang-dev
https://golang.org/cl/4529084
2011-05-24 19:50:13 -04:00
Anthony Martin
0b209b36b6 gc: relax assignability of method receivers
The spec was adjusted in commit df410d6a4842 to allow the
implicit assignment of strutures with unexported fields in
method receivers.  This change updates the compiler.

Also moved bug322 into fixedbugs and updated golden.out
to reflect the removal of the last known bug.

Fixes #1402.

R=golang-dev, gri, rsc
CC=golang-dev
https://golang.org/cl/4526069
2011-05-24 19:48:19 -04:00
Robert Griesemer
3c7271f057 go spec: be precise with the use of the informal ellipsis … and the Go token ...
Fixes #1867.

R=r
CC=golang-dev
https://golang.org/cl/4538092
2011-05-24 14:18:44 -07:00
Dave Cheney
648f25b237 5l: fix set but not used warnings
R=rsc, iant
CC=golang-dev
https://golang.org/cl/4538083
2011-05-21 08:00:53 -07:00
Russ Cox
975ba88e0e cgo: use packed struct to fix Windows behavior
R=golang-dev, mattn.jp, jcowgar, iant
CC=golang-dev
https://golang.org/cl/4535080
2011-05-18 14:08:12 -04:00
Wei Guangjing
b256358008 6l: fix emit windows dwarf sections
R=alex.brainman, rsc
CC=golang-dev, vcc.163
https://golang.org/cl/4532069
2011-05-18 13:12:38 -04:00
Anthony Martin
f570d9d765 8g: fix conversion from float to uint64
The code for converting negative floats was
incorrectly loading an FP control word from
the stack without ever having stored it there.

Thanks to Lars Pensjö for reporting this bug.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4515091
2011-05-16 22:14:56 -04:00
Alexey Borzenkov
b701cf3332 runtime: make StackSystem part of StackGuard
Fixes #1779

R=rsc
CC=golang-dev
https://golang.org/cl/4543052
2011-05-16 16:57:49 -04:00
Russ Cox
e69b9ddd42 ld: do not emit reference to dynamic library named ""
Fixes #1778.

R=ken2
CC=golang-dev
https://golang.org/cl/4550047
2011-05-16 16:24:17 -04:00
Russ Cox
2d310a0087 5c, 5g: another attempt at silencing gcc
R=ken2
CC=golang-dev
https://golang.org/cl/4535074
2011-05-16 16:15:13 -04:00
Russ Cox
40745a579c 5l: delete pre-ARMv4 instruction implementations
Add implementation for addr<->reg short moves.
Align large data, for ARM.

R=ken2
CC=golang-dev
https://golang.org/cl/4545050
2011-05-16 16:14:37 -04:00
Robert Hencke
d49844bcce gofmt: skip bug340.go in test.sh
bug340.go is a test case for a syntax error

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4523069
2011-05-14 23:06:50 -07:00
Luuk van Dijk
36cec789cd gc: generalize dst = append(src,...) inlining to arbitrary src and dst arguments.
R=rsc
CC=golang-dev
https://golang.org/cl/4517057
2011-05-14 00:35:10 +02:00
Robert Griesemer
ba006e6b6a go/types: type checker API + testing infrastructure
At the moment types.Check() only deals with global
types and only partially so. But the framework is
there to compute them and check for cycles. An initial
type test is passing.

First step of a series of CLs to come.

R=rsc
CC=golang-dev
https://golang.org/cl/4425063
2011-05-13 15:31:09 -07:00
Russ Cox
2d174db6a6 5c, 5g: fix build with too-smart gcc
R=ken2
CC=golang-dev
https://golang.org/cl/4543049
2011-05-13 12:15:46 -04:00
Brad Fitzpatrick
05a1b7ec41 http: remove finalURL from Client.Get; move to Response
This CL:

-- removes Response.RequestMethod string
-- adds Response.Request *Request
-- removes the finalURL result parameter from client.Get()
-- adds a gofix rule for callers of http.Get which assign
   the final url to the blank identifier; warning otherwise

Caller who did:

res, finalURL, err := http.Get(...)

now need to do:

res, err := http.Get(...)
if err != nil {
   ...
}
finalURL := res.Request.URL.String()

R=rsc
CC=golang-dev
https://golang.org/cl/4535056
2011-05-13 07:31:24 -07:00
Alex Brainman
34ac4ec30c 6l, 8l: emit windows dwarf sections similar to other platforms
R=golang-dev, rsc
CC=golang-dev, vcc.163
https://golang.org/cl/4517056
2011-05-13 16:05:47 +10:00
Robert Hencke
a005617c5a gotest: document unit of time for elapsed()
R=golang-dev
CC=golang-dev
https://golang.org/cl/4543044
2011-05-12 22:00:14 -07:00
Russ Cox
70798eaad6 5l, 8l: add ELF symbol table to binary
Should have been added long ago.
Thanks to Alex Brainman for noticing.

R=ken2
CC=golang-dev
https://golang.org/cl/4538046
2011-05-11 23:59:36 -04:00
Anthony Martin
4fca395321 ld: fix alignment of rodata section on Plan 9
This was causing a panic in the reflect package
since type.* pointers with their low bits set are
assumed to have certain flags set that disallow
the use of reflection.

Thanks to Pavel and Taru for help tracking down
this bug.

R=rsc, paulzhol, taruti
CC=golang-dev
https://golang.org/cl/4511041
2011-05-11 23:52:05 -04:00
Lorenzo Stoakes
f58d911698 gc: fix type switch error message for invalid cases.
Fixes #1606.

R=rsc
CC=golang-dev
https://golang.org/cl/4532045
2011-05-11 23:41:59 -04:00
Luuk van Dijk
d6b2925923 gc: inline append when len<cap
issue 1604

R=rsc, bradfitz
CC=golang-dev
https://golang.org/cl/4313062
2011-05-11 16:35:11 +02:00
Russ Cox
3f335f80b4 gc: fix unsafe.Sizeof
Fixes #1608.
Fixes #1787.

R=ken2
CC=golang-dev
https://golang.org/cl/4530045
2011-05-10 17:00:15 -04:00
Joe Poirier
733fde588b windows: reset command var to sh for correct error output messages
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4492043
2011-05-06 22:05:04 -07:00
Roger Peppe
1dc914bc0d cgo: put CFLAGS before filename argument
This means that the -x flag can work, which could enable
support for other languages (e.g. objective-C).

R=iant, rsc
CC=golang-dev
https://golang.org/cl/4476049
2011-05-06 13:35:51 -07:00
Robert Griesemer
e49d50e203 gofmt: update test.sh (exclude a file w/ incorrect syntax)
R=iant, iant2
CC=golang-dev
https://golang.org/cl/4453058
2011-05-03 09:56:18 -07:00
Russ Cox
296d6871a8 ld: make ELF binaries with no shared library dependencies static binaries
$ file $GOROOT/bin/{godoc,goyacc}
/home/rsc/g/go/bin/godoc:  ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), not strpped
/home/rsc/g/go/bin/goyacc: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, not stripped
$

Fixes #1758.

R=iant
CC=golang-dev
https://golang.org/cl/4428079
2011-05-03 01:56:23 -04:00
Russ Cox
4002014cf8 http/pprof: fix POST reading bug
R=bradfitz
CC=golang-dev
https://golang.org/cl/4430075
2011-05-02 17:34:22 -04:00
Robert Griesemer
c783e68ff5 godoc: added -index flag to enable/disable search index
Fixes #1647.

R=adg, rsc1, r2, rsc, r
CC=golang-dev
https://golang.org/cl/4444083
2011-05-02 13:28:02 -07:00
Russ Cox
a46a311dec 5a, 6a, 8a, cc: remove old environment variables
Uses of $INCLUDE and $NPROC are left over from Plan 9.
Remove them to avoid causing confusion.

R=golang-dev, r2
CC=golang-dev
https://golang.org/cl/4445079
2011-05-02 11:24:32 -04:00
Russ Cox
8133cb3565 gc: preserve original expression for errors
Fixes #1722.

R=ken2
CC=golang-dev
https://golang.org/cl/4442099
2011-04-28 13:14:35 -04:00
Lorenzo Stoakes
b6f0632e93 gc: correctly handle fields of pointer type to recursive forward references
Previously, whether declaring a type which copied the structure of a type it was referenced in via a pointer field would work depended on whether you declared it before or after the type it copied, e.g. type T2 T1; type T1 struct { F *T2 } would work, however type T1 struct { F *T2 }; type T2 T1 wouldn't.

Fixes #667.

R=rsc
CC=golang-dev
https://golang.org/cl/4313064
2011-04-28 00:13:49 -04:00
Russ Cox
09092a78e6 cgo: handle versioned ELF symbols
Fixes #1397.

R=iant
CC=golang-dev
https://golang.org/cl/4444064
2011-04-27 23:21:03 -04:00
Russ Cox
5eeaca12d3 gopack: preserve safe flag when not adding unsafe objects to archive
R=dsymonds
CC=golang-dev
https://golang.org/cl/4436060
2011-04-27 09:20:53 -04:00
Andrew Gerrand
ca8a055f5c goinstall: support GOPATH; building and installing outside the Go tree
For example, with GOPATH set like so
        GOPATH=/home/adg/gocode
And after creating some subdirectories
        mkdir /home/adg/gocode/{bin,pkg,src}

I can use goinstall to install the github.com/nf/goto web server,
which depends on the github.com/nf/stat package, with
        goinstall github.com/nf/goto

This downloads and installs all dependencies (that aren't already
installed) like so
        /home/adg/gocode/bin/goto
        /home/adg/gocode/pkg/darwin_amd64/github.com/nf/stat.a
        /home/adg/gocode/src/github.com/nf/goto/...
        /home/adg/gocode/src/github.com/nf/stat/...

R=rsc, niemeyer
CC=golang-dev
https://golang.org/cl/4438043
2011-04-27 11:00:34 +10:00
Alex Brainman
2d99974ec5 8l: do not emit empty dwarf pe sections
This change will allow to generate valid executable,
even if rsc disables dwarf generation, as it happend
at revision 9a64273f9d68.

R=rsc
CC=golang-dev, lvd, vcc
https://golang.org/cl/4425066
2011-04-26 17:12:16 +10:00
Russ Cox
bac8f18035 gc: fix order of operations for f() < g().
Also, 6g was passing uninitialized
Node &n2 to regalloc, causing non-deterministic
register collisions (but only when both left and
right hand side of comparison had function calls).

Fixes #1728.

R=ken2
CC=golang-dev
https://golang.org/cl/4425070
2011-04-26 00:57:03 -04:00
Russ Cox
4684df520f gc: explain why invalid receiver types are invalid
Fixes #1680.

R=ken2
CC=golang-dev
https://golang.org/cl/4446061
2011-04-25 17:16:44 -04:00
Russ Cox
c2c7ee2736 ld: fix 6l -d on Mac, diagnose invalid use of -d
R=r
CC=golang-dev
https://golang.org/cl/4430064
2011-04-25 13:57:52 -04:00
Russ Cox
07abf1c732 fix tree for reflect rename
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4435067
2011-04-25 13:39:36 -04:00
Russ Cox
41342dc73c gofix: add support for reflect rename
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4450053
2011-04-25 13:39:00 -04:00
Fazlul Shahriar
f1781bec3b 8g,8l: fix "set but not used" gcc error
$ gcc --version
gcc (GCC) 4.6.0 20110415 (prerelease)

R=golang-dev, rsc1, rsc
CC=golang-dev
https://golang.org/cl/4442080
2011-04-25 12:14:30 -04:00
Russ Cox
3a1fdc655e gc: fix import width bug
Fixes #1705.

R=ken2
CC=golang-dev
https://golang.org/cl/4443060
2011-04-25 12:08:48 -04:00
Robert Hencke
883d68f885 gc: allow complex types to be receiver types
Fixes #1716.

R=golang-dev, rsc1, rsc
CC=golang-dev
https://golang.org/cl/4439068
2011-04-25 12:02:54 -04:00
Russ Cox
c0a895fc0a gc: fix conversion of user-defined string type to []byte
Fixes #1709.

R=ken2
CC=golang-dev
https://golang.org/cl/4438068
2011-04-23 10:55:32 -04:00
Russ Cox
815a1b84c7 gc: fix return variable named _
Fixes #1712.

R=ken2
CC=golang-dev
https://golang.org/cl/4445055
2011-04-23 10:54:19 -04:00
Russ Cox
7879d3118c gc: fix line number at EOF
Fixes #1474.

R=ken2
CC=golang-dev
https://golang.org/cl/4432061
2011-04-23 10:54:05 -04:00
Anthony Martin
c7008f47ec ld: fix Plan 9 symbol table
Static symbols were not being marked as such.

I also made the 'z' symbols use the first byte of
the name instead of an explicit NUL so that if
the symbol table format is ever changed, the only
place that would need updating is addhist().

R=rsc
CC=golang-dev
https://golang.org/cl/4366047
2011-04-23 10:53:49 -04:00
Lucio De Re
f367c13c79 8l/prof.c: #if 0 is not accepted by the Plan 9 native toolchain.
The solution may be a bit of a sledgehammer, but it looks like
a temporary situation anyway.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4400042
2011-04-21 17:03:58 -04:00