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3053778965
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42 Commits

Author SHA1 Message Date
Adam Langley
3053778965 cmd/*: add -d option to bison. 
Without -d, bison doesn't generate y.tab.h.

R=rsc
CC=golang-dev
https://golang.org/cl/5685065
 2012-02-21 10:50:58 -05:00
Evan Shaw
fc444ebac1 8a, 8l: add EMMS instruction 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5673081
 2012-02-17 11:21:46 -05:00
Darren Elwood
aaac05ae23 8a, 8l: add LFENCE, MFENCE, SFENCE 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5650076
 2012-02-13 13:58:12 -05:00
Russ Cox
fec7fa8b9d build: delete make paraphernalia 
As a convenience to people working on the tools,
leave Makefiles that invoke the go dist tool appropriately.
They are not used during the build.

R=golang-dev, bradfitz, n13m3y3r, gustavo
CC=golang-dev
https://golang.org/cl/5636050
 2012-02-06 13:34:25 -05:00
Shenghou Ma
6392b43a15 8a, 8l: implement support for RDTSC instruction. 
Also modify runtime/asm_386.s to use it.

R=rsc
CC=golang-dev
https://golang.org/cl/5634043
 2012-02-06 12:49:28 -05:00
Russ Cox
0f78ee574b 5a, 6a, 8a, cc: check in y.tab.[ch] 
This enables builds on systems without Bison/yacc.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5622050
 2012-02-03 10:53:51 -05:00
Rob Pike
91cb3489ab go: move compilers into the go-tool directory 
Also delete gotest, since it's messy to fix and slated for deletion anyway.
A couple of things outside src can't be tested any more. "go test" will be
fixed and these tests will be re-enabled. They're noisy for now.

Fixes #284.

R=rsc
CC=golang-dev
https://golang.org/cl/5598049
 2012-01-30 14:46:31 -08:00
Russ Cox
6d9c02aea3 6a, 8a: allow $(-1) for consistency with $1, $(1), $-1. 
R=ken2
CC=golang-dev
https://golang.org/cl/5373074
 2011-11-11 14:56:49 -05:00
Russ Cox
1738dc0e71 8a: fix IMULL grammar 
R=ken2
CC=golang-dev
https://golang.org/cl/5298091
 2011-11-03 11:32:37 -04:00
Hector Chu
aed2c06dcb 5a, 5c, 6a, 6c, 8a, 8c: fix Windows file paths 
Verified with objdump -W.

R=alex.brainman, rsc
CC=golang-dev
https://golang.org/cl/4974061
 2011-09-07 15:49:56 -04:00
Yuval Pavel Zholkover
c20a338c2f runtime, syscall: use the vdso page on linux x86 for faster syscalls instead of int $0x80. 
8l: fix handling CALL $(constant) code generated by 8a.
8a,8l: add indirect call instruction: CALL *data(SB).

R=rsc, iant
CC=golang-dev
https://golang.org/cl/4817054
 2011-08-29 10:36:06 -04:00
Jaroslavas Počepko
a88994f804 6l, 8l: remove JCXZ; add JCXZW, JCXZL, and JCXZQ 
R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/4950050
 2011-08-26 17:45:19 -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
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
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
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
895631770a 8a, 8l: add CMPXCHG8B, XADDB, XADDL, XADDW 
R=ken2
CC=golang-dev
https://golang.org/cl/4240041
 2011-02-25 01:04:29 -05:00
Russ Cox
3f61184e1b gc, ld: detect stale or incompatible object files 
The object files begin with a header that is

        $GOARCH

on a line by itself.  This CL changes that header to

        go object $GOOS $GOARCH release.2011-01-01 4567+

where the final two fields are the most recent release
tag and the current hg version number.

All objects imported into a Go compilation or linked into an
executable must have the same header line, and that header
line must match the compiler and linker versions.

The effect of this will be that if you update and run all.bash
and then try to link in objects compiled with an earlier version
of the compiler (or invoke the wrong version of the compiler),
you will get an error showing the different headers instead
of perhaps silent incompatibility.

Normal usage with all.bash should be unaffected, because
all.bash deletes all the object files in $GOROOT/pkg/$GOOS_$GOARCH
and cleans all intermediate object files before starting.

This change is intended to diagnose stale objects arising when
users maintaining alternate installation directories forget to
rebuild some of their files after updating.

It should help make the adoption of $GOPATH (CL 3780043)
less error-prone.

R=ken2, r
CC=golang-dev
https://golang.org/cl/4023063
 2011-02-03 13:51:43 -05:00
Jeff R. Allen
1558834248 5a, 5l, 6a, 6l, 8a, 8l: handle out of memory, large allocations 
Fixes #392.

R=rsc, r2
CC=golang-dev
https://golang.org/cl/2732042
 2011-01-19 15:30:26 -05:00
Luuk van Dijk
2ad521c19a [568]a: precise linenumbers for statements. 
R=rsc, ken2, r, rsc1
CC=golang-dev
https://golang.org/cl/2297042
 2010-10-07 11:13:06 +02:00
Russ Cox
aafe474ec9 build: $GOBIN defaults to $GOROOT/bin 
R=r
CC=golang-dev
https://golang.org/cl/1982049
 2010-08-24 20:00:33 -04:00
Rob Pike
9e481e2905 fix spelling of align 
R=rsc
CC=golang-dev
https://golang.org/cl/778041
 2010-03-26 09:56:57 -07:00
Evan Shaw
4af0a58ea9 8a/8l: Added FCMOVcc instructions 
Thanks to Charles Dorian for the help.

R=rsc
CC=Charlie Dorian, golang-dev
https://golang.org/cl/207049
 2010-02-18 23:33:06 -08:00
Evan Shaw
baea3e946d 8a/8l: Added CMOVcc instructions 
R=rsc
CC=golang-dev
https://golang.org/cl/204067
 2010-02-09 13:33:07 -08:00
Dean Prichard
0e47c75f60 5a/6a/8a/5c/6c/8c: remove fixed-size arrays for -I and -D options 
R=rsc
CC=golang-dev
https://golang.org/cl/198044
 2010-02-05 01:40:58 -08:00
Dean Prichard
77053797e0 avoid overflow of symb buffer in 5a/6a/8a/5c/6c/8c 
R=rsc
CC=golang-dev
https://golang.org/cl/194099
 2010-01-28 16:11:38 -08:00
Dean Prichard
07d3e0dce4 5a/6a/8a: avoid fixed-sized file name buffer 
R=rsc
CC=golang-dev
https://golang.org/cl/186279
 2010-01-22 16:59:17 -08:00
Evan Shaw
5107aa82a1 8a, 8l: Add FCOMI, FCOMIP, FUCOMI, FUCOMIP instructions 
Fixes #447

R=rsc
CC=golang-dev
https://golang.org/cl/183047
 2010-01-05 17:06:41 -08:00
Sergio Luis O. B. Correia
6fc820729e go: makes it build for the case $GOROOT has whitespaces 
the bash scripts and makefiles for building go didn't take into account
the fact $GOROOT / $GOBIN could both be directories containing whitespaces,
and was not possible to build it in such a situation.

this commit adjusts the various makefiles/scripts to make it aware of that
possibility, and now it builds successfully when using a path with whitespaces
as well.

Fixes #115.

R=rsc, dsymonds1
https://golang.org/cl/157067
 2009-11-23 17:32:51 -08:00
Russ Cox
593ccd1d44 yet another attempt to avoid conflicts with 
<stdio.h>, which we weren't even #including

R=r
https://golang.org/cl/154108
 2009-11-12 23:38:48 -08:00
Russ Cox
c3343ef62c fix BUFSIZ redeclaration warnings 
R=r
https://golang.org/cl/152085
 2009-11-11 16:33:23 -08:00
Russ Cox
e9ac56fb99 getc/ungetc in assemblers; BUFSIZ everywhere. 
Fixes #67.

R=r
https://golang.org/cl/154068
 2009-11-11 14:52:08 -08:00
Russ Cox
18ccbc69f8 tweak documentation of commands 
so that first sentence is better for cmd page.

live at http://r45:3456/cmd/

R=gri, r
http://go/go-review/1024034
 2009-11-09 11:45:15 -08:00
Rob Pike
b5ab5d4f12 document the assemblers. 
add details about -d and -e flags in the loaders.

R=rsc
CC=go-dev
http://go/go-review/1018031
 2009-11-03 16:29:32 -08:00
Russ Cox
11d3805579 clean more 
R=r
DELTA=40  (9 added, 3 deleted, 28 changed)
OCL=35277
CL=35305
 2009-10-03 10:38:03 -07:00
Russ Cox
de0d762a0f accept CALL $(constant) to call absolute PC 
R=ken
OCL=34845
CL=34845
 2009-09-21 09:41:21 -07:00
Phil Pennock
d6f89c69c4 Support use of $GOBINDIR to override $HOME/bin 
R=r,gri,rsc
APPROVED=rsc
DELTA=53  (12 added, 6 deleted, 35 changed)
OCL=31822
CL=32282
 2009-07-28 11:23:24 -07:00
Russ Cox
58f7fc331f make 8a, 8c build again. 
add 8a 8c 8l to the build to keep us honest.

R=r
DELTA=33  (28 added, 0 deleted, 5 changed)
OCL=26694
CL=26711
 2009-03-24 18:04:19 -07:00
Russ Cox
5a68303a15 throw away most of the compat.h compatibility layer 
in favor of the lib9 compatibility layer.  no need for two.

now that mycreate is gone, .6 files are 0644 not 0755.

TBR=r
OCL=26679
CL=26679
 2009-03-24 12:12:57 -07:00
Russ Cox
2bd101c4b1 update 8a, 8c, 8l to use new object format. 
add "extern register" support to 8c.
extern register means allocate in the FS-relative segment.

make 8l generate segmented stack checks.

R=ken
OCL=26600
CL=26606
 2009-03-20 16:40:00 -07:00
Russ Cox
af0143ce03 make 8a, 8c, 8l build in go environment. 
,s/int32/long/g in 8a, 8c, 8l.
delete dead code.
move enam.c, 8.out.h, mkenam from 8c to 8l.

R=r
DELTA=1850  (581 added, 983 deleted, 286 changed)
OCL=22119
CL=22129
 2009-01-06 11:34:02 -08:00
Russ Cox
4dee747fb9 8a, 8c, and 8l from inferno distribution 
R=r
DELTA=19539  (19539 added, 0 deleted, 0 changed)
OCL=22109
CL=22109
 2009-01-06 09:41:38 -08:00