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Author SHA1 Message Date
Shenghou Ma 0f80050542 runtime: fix runtime.Breakpoint for ARM 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6100053
 2012-04-24 23:19:44 +08:00
Michael Chaten 32c3a626da runtime: add benchmark for complex128 division 
R=golang-dev, dave, rsc
CC=golang-dev, minux.ma
https://golang.org/cl/6070043
 2012-04-21 13:24:41 +10:00
Ian Lance Taylor 244706bd0f runtime: disable memory profiler in gc_test 
This lets the test pass on PPC64 GNU/Linux, which uses a much
larger page size and thus uses more memory to hold blocks
allocated for memory profiling.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6048054
 2012-04-20 11:36:06 -07:00
Joel Sing 99fc281743 runtime: update defs for openbsd 
Update runtime defs for openbsd. Add struct __tfork, which will be
needed by an upcoming change.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/6007050
 2012-04-17 02:35:41 +10:00
Dmitriy Vyukov 4945fc8e40 runtime: speedup GC sweep phase (batch free) 
benchmark                             old ns/op    new ns/op    delta
garbage.BenchmarkParser              4370050250   3779668750  -13.51%
garbage.BenchmarkParser-2            3713087000   3628771500   -2.27%
garbage.BenchmarkParser-4            3519755250   3406349750   -3.22%
garbage.BenchmarkParser-8            3386627750   3319144000   -1.99%

garbage.BenchmarkTree                 493585529    408102411  -17.32%
garbage.BenchmarkTree-2               500487176    402285176  -19.62%
garbage.BenchmarkTree-4               473238882    361484058  -23.61%
garbage.BenchmarkTree-8               486977823    368334823  -24.36%

garbage.BenchmarkTree2                 31446600     31203200   -0.77%
garbage.BenchmarkTree2-2               21469000     21077900   -1.82%
garbage.BenchmarkTree2-4               11007600     10899100   -0.99%
garbage.BenchmarkTree2-8                7692400      7032600   -8.58%

garbage.BenchmarkParserPause          241863263    163249450  -32.50%
garbage.BenchmarkParserPause-2        120135418    112981575   -5.95%
garbage.BenchmarkParserPause-4         83411552     64580700  -22.58%
garbage.BenchmarkParserPause-8         51870697     42207244  -18.63%

garbage.BenchmarkTreePause             20940474     13147011  -37.22%
garbage.BenchmarkTreePause-2           20115124     11146715  -44.59%
garbage.BenchmarkTreePause-4           17217584      7486327  -56.52%
garbage.BenchmarkTreePause-8           18258845      7400871  -59.47%

garbage.BenchmarkTree2Pause           174067190    172674190   -0.80%
garbage.BenchmarkTree2Pause-2         131175809    130615761   -0.43%
garbage.BenchmarkTree2Pause-4          95406666     93972047   -1.50%
garbage.BenchmarkTree2Pause-8          86056095     85334952   -0.84%

garbage.BenchmarkParserLastPause      329932000    324790000   -1.56%
garbage.BenchmarkParserLastPause-2    209383000    210456000   +0.51%
garbage.BenchmarkParserLastPause-4    113981000    112921000   -0.93%
garbage.BenchmarkParserLastPause-8     77967000     76625000   -1.72%

garbage.BenchmarkTreeLastPause         29752000     18444000  -38.01%
garbage.BenchmarkTreeLastPause-2       24274000     14766000  -39.17%
garbage.BenchmarkTreeLastPause-4       19565000      8726000  -55.40%
garbage.BenchmarkTreeLastPause-8       21956000     10530000  -52.04%

garbage.BenchmarkTree2LastPause       314411000    311945000   -0.78%
garbage.BenchmarkTree2LastPause-2     214641000    210836000   -1.77%
garbage.BenchmarkTree2LastPause-4     110024000    108943000   -0.98%
garbage.BenchmarkTree2LastPause-8      76873000     70263000   -8.60%

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5991049
 2012-04-12 12:01:24 +04:00
Dmitriy Vyukov a5dc7793c0 runtime: add lock-free stack 
This is factored out part of the:
https://golang.org/cl/5279048/
(parallel GC)

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5993043
 2012-04-12 11:49:25 +04:00
Dave Cheney d8e9b04ca6 runtime: add interface microbenchmarks 
2011 Mac Mini, Core i5 @ 2.3Ghz

BenchmarkConvT2E        50000000                40.4 ns/op
BenchmarkConvT2EBig     20000000               107 ns/op
BenchmarkConvT2I        100000000               28.9 ns/op
BenchmarkConvI2E        500000000                5.93 ns/op
BenchmarkConvI2I        100000000               19.0 ns/op
BenchmarkAssertE2T      100000000               14.1 ns/op
BenchmarkAssertE2TBig   100000000               17.8 ns/op
BenchmarkAssertE2I      100000000               21.3 ns/op
BenchmarkAssertI2T      100000000               14.3 ns/op
BenchmarkAssertI2I      100000000               20.8 ns/op
BenchmarkAssertI2E      500000000                5.58 ns/op

Pandaboard, 2 x Omap4 @ 1.2Ghz

BenchmarkConvT2E        10000000               215 ns/op
BenchmarkConvT2EBig      1000000              3697 ns/op
BenchmarkConvT2I         5000000               666 ns/op
BenchmarkConvI2E        50000000                42.4 ns/op
BenchmarkConvI2I         5000000               489 ns/op
BenchmarkAssertE2T      20000000                90.0 ns/op
BenchmarkAssertE2TBig   20000000                91.6 ns/op
BenchmarkAssertE2I       5000000               515 ns/op
BenchmarkAssertI2T      20000000               124 ns/op
BenchmarkAssertI2I       5000000               517 ns/op
BenchmarkAssertI2E      50000000                47.2 ns/op
BenchmarkAssertE2E      50000000                42.7 ns/op

R=minux.ma, rsc, fullung, bsiegert, dsymonds
CC=golang-dev
https://golang.org/cl/5777048
 2012-04-11 22:45:44 +10:00
Joel Sing 8cea1bf102 runtime: update openbsd thread related syscalls to match kernel 
Update the threxit and thrsleep syscalls to match the ABI of the
OpenBSD 5.1 kernel. These changes are backwards compatible with
older kernels.

Fixes #3311.

R=golang-dev, rsc, devon.odell
CC=golang-dev
https://golang.org/cl/5777079
 2012-04-11 22:02:08 +10:00
Shenghou Ma 1a59e6239c 5l, runtime: remove softfloat emulation code when not used 
This leads to ~30kB improvement on code size for ARM machines with VFP/NEON.
Example: go test -c math
       GOARM=5  GOARM=6
  Old: 1884200  1839144
  New: 1884165  1805245
  -:        35    33899

R=rsc, bradfitz, dave, kai.backman
CC=golang-dev
https://golang.org/cl/5975060
 2012-04-11 04:11:27 +08:00
Akshat Kumar 7056ec6bfd runtime: fix floating point exception on Plan 9 
Change 5660047 moved an FLDCW instruction
that disables invalid operand traps into
runtime·asminit, which is called from
runtime·mstart. Thus, runtime·check is being
called prior to setting the appropriate control bits,
which on any QNaN comparison will cause Plan 9
to take an invalid operand trap. This change loads
the control bits (for Plan 9) prior to runtime·check.
Ideally, this should be done before the QNaN checks
on any system, but possibly other kernels simply
don't ever trap on invalid operands.

R=golang-dev, rminnich
CC=golang-dev, john, rsc
https://golang.org/cl/5939045
 2012-04-10 15:14:10 -04:00
Quan Yong Zhai e133ee9538 runtime: unregister the SIGILL handler after ARM EABI test 
Part of issue 3381

R=rsc, minux.ma, dave
CC=golang-dev
https://golang.org/cl/5969064
 2012-04-10 15:05:22 -04:00
Russ Cox 3d462449f6 8a, 8l: add PREFETCH instructions 
R=ken2
CC=golang-dev
https://golang.org/cl/5992082
 2012-04-10 10:09:27 -04:00
Russ Cox 35d260fa4c 6a, 6l: add PREFETCH instructions 
R=ken2
CC=golang-dev
https://golang.org/cl/5989073
 2012-04-10 10:09:09 -04:00
Joel Sing 098b9dcf2f runtime: block signals during thread creation on openbsd 
Block signals during thread creation, otherwise the new thread can
receive a signal prior to initialisation completing.

Fixes #3102.

R=golang-dev, rsc, devon.odell, minux.ma
CC=golang-dev
https://golang.org/cl/5757064
 2012-04-10 21:57:05 +10:00
Rob Pike 6849c4db0c runtime.Callers: make documentation match code 
It is a bug that Caller and Callers disagree about the offset of the skip
parameter. Document the bug.

R=rsc, dsymonds, r, iant
CC=golang-dev
https://golang.org/cl/5976064
 2012-04-10 09:47:57 +10:00
Dmitriy Vyukov 342658bbb6 runtime: preparation for parallel GC 
make MHeap.allspans an array instead on a linked-list,
it's required for parallel for

benchmark                              old ns/op    new ns/op    delta

garbage.BenchmarkTree                  494435529    487962705   -1.31%
garbage.BenchmarkTree-2                499652705    485358000   -2.86%
garbage.BenchmarkTree-4                468482117    454093117   -3.07%
garbage.BenchmarkTree-8                488533235    471872470   -3.41%
garbage.BenchmarkTree-16               507835176    492558470   -3.01%

garbage.BenchmarkTree2                  31453900     31404300   -0.16%
garbage.BenchmarkTree2-2                21440600     21477000   +0.17%
garbage.BenchmarkTree2-4                10982000     11117400   +1.23%
garbage.BenchmarkTree2-8                 7544700      7456700   -1.17%
garbage.BenchmarkTree2-16                7049500      6805700   -3.46%

garbage.BenchmarkParser               4448988000   4453264000   +0.10%
garbage.BenchmarkParser-2             4086045000   4057948000   -0.69%
garbage.BenchmarkParser-4             3677365000   3661246000   -0.44%
garbage.BenchmarkParser-8             3517253000   3540190000   +0.65%
garbage.BenchmarkParser-16            3506562000   3463478000   -1.23%

garbage.BenchmarkTreePause              20969784     21100238   +0.62%
garbage.BenchmarkTreePause-2            20215875     20139572   -0.38%
garbage.BenchmarkTreePause-4            17240709     16683624   -3.23%
garbage.BenchmarkTreePause-8            18196386     17639306   -3.06%
garbage.BenchmarkTreePause-16           20621158     20215056   -1.97%

garbage.BenchmarkTree2Pause            173992142    173872380   -0.07%
garbage.BenchmarkTree2Pause-2          131281904    131366666   +0.06%
garbage.BenchmarkTree2Pause-4           93484952     95109619   +1.74%
garbage.BenchmarkTree2Pause-8           88950523     86533333   -2.72%
garbage.BenchmarkTree2Pause-16          86071238     84089190   -2.30%

garbage.BenchmarkParserPause           135815000    135255952   -0.41%
garbage.BenchmarkParserPause-2          92691523     91451428   -1.34%
garbage.BenchmarkParserPause-4          53392190     51611904   -3.33%
garbage.BenchmarkParserPause-8          36059523     35116666   -2.61%
garbage.BenchmarkParserPause-16         30174300     27340600   -9.39%

garbage.BenchmarkTreeLastPause          28420000     29142000   +2.54%
garbage.BenchmarkTreeLastPause-2        23514000     26779000  +13.89%
garbage.BenchmarkTreeLastPause-4        21773000     18660000  -14.30%
garbage.BenchmarkTreeLastPause-8        24072000     21276000  -11.62%
garbage.BenchmarkTreeLastPause-16       25149000     28541000  +13.49%

garbage.BenchmarkTree2LastPause        314491000    313982000   -0.16%
garbage.BenchmarkTree2LastPause-2      214363000    214715000   +0.16%
garbage.BenchmarkTree2LastPause-4      109778000    111115000   +1.22%
garbage.BenchmarkTree2LastPause-8       75390000     74522000   -1.15%
garbage.BenchmarkTree2LastPause-16      70333000     67880000   -3.49%

garbage.BenchmarkParserLastPause       327247000    326815000   -0.13%
garbage.BenchmarkParserLastPause-2     217039000    212529000   -2.08%
garbage.BenchmarkParserLastPause-4     119722000    111535000   -6.84%
garbage.BenchmarkParserLastPause-8      70806000     69613000   -1.68%
garbage.BenchmarkParserLastPause-16     62813000     48009000  -23.57%

R=rsc, r
CC=golang-dev
https://golang.org/cl/5992055
 2012-04-09 13:05:43 +04:00
Dmitriy Vyukov f09e63a2a0 runtime: add memory prefetching to GC 
benchmark                              old ns/op    new ns/op    delta

garbage.BenchmarkParser               4448988000   4370531000   -1.76%
garbage.BenchmarkParser-2             4086045000   4023083000   -1.54%
garbage.BenchmarkParser-4             3677365000   3667020000   -0.28%
garbage.BenchmarkParser-8             3517253000   3543946000   +0.76%
garbage.BenchmarkParser-16            3506562000   3512518000   +0.17%

garbage.BenchmarkTree                  494435529    505784058   +2.30%
garbage.BenchmarkTree-2                499652705    502774823   +0.62%
garbage.BenchmarkTree-4                468482117    465713352   -0.59%
garbage.BenchmarkTree-8                488533235    482287000   -1.28%
garbage.BenchmarkTree-16               507835176    500654882   -1.41%

garbage.BenchmarkTree2                  31453900     28804600   -8.42%
garbage.BenchmarkTree2-2                21440600     19065800  -11.08%
garbage.BenchmarkTree2-4                10982000     10009100   -8.86%
garbage.BenchmarkTree2-8                 7544700      6479800  -14.11%
garbage.BenchmarkTree2-16                7049500      6163200  -12.57%

garbage.BenchmarkParserPause           135815000    125360666   -7.70%
garbage.BenchmarkParserPause-2          92691523     84365476   -8.98%
garbage.BenchmarkParserPause-4          53392190     46995809  -11.98%
garbage.BenchmarkParserPause-8          36059523     30998900  -14.03%
garbage.BenchmarkParserPause-16         30174300     27613350   -8.49%

garbage.BenchmarkTreePause              20969784     22568102   +7.62%
garbage.BenchmarkTreePause-2            20215875     20975130   +3.76%
garbage.BenchmarkTreePause-4            17240709     17180666   -0.35%
garbage.BenchmarkTreePause-8            18196386     18205870   +0.05%
garbage.BenchmarkTreePause-16           20621158     20486867   -0.65%

garbage.BenchmarkTree2Pause            173992142    159995285   -8.04%
garbage.BenchmarkTree2Pause-2          131281904    118013714  -10.11%
garbage.BenchmarkTree2Pause-4           93484952     85092666   -8.98%
garbage.BenchmarkTree2Pause-8           88950523     77340809  -13.05%
garbage.BenchmarkTree2Pause-16          86071238     76557952  -11.05%

garbage.BenchmarkParserLastPause       327247000    288205000  -11.93%
garbage.BenchmarkParserLastPause-2     217039000    187336000  -13.69%
garbage.BenchmarkParserLastPause-4     119722000    105069000  -12.24%
garbage.BenchmarkParserLastPause-8      70806000     64755000   -8.55%
garbage.BenchmarkParserLastPause-16     62813000     53486000  -14.85%

garbage.BenchmarkTreeLastPause          28420000     29735000   +4.63%
garbage.BenchmarkTreeLastPause-2        23514000     25427000   +8.14%
garbage.BenchmarkTreeLastPause-4        21773000     19548000  -10.22%
garbage.BenchmarkTreeLastPause-8        24072000     24046000   -0.11%
garbage.BenchmarkTreeLastPause-16       25149000     25291000   +0.56%

garbage.BenchmarkTree2LastPause        314491000    287988000   -8.43%
garbage.BenchmarkTree2LastPause-2      214363000    190616000  -11.08%
garbage.BenchmarkTree2LastPause-4      109778000    100052000   -8.86%
garbage.BenchmarkTree2LastPause-8       75390000     64753000  -14.11%
garbage.BenchmarkTree2LastPause-16      70333000     61484000  -12.58%

FTR, below are result with the empty prefetch function,
that is, single RET but no real prefetching.
It suggests that inlinable PREFETCH is worth pursuing.

benchmark                              old ns/op    new ns/op    delta

garbage.BenchmarkParser               4448988000   4560488000   +2.51%
garbage.BenchmarkParser-2             4086045000   4129728000   +1.07%
garbage.BenchmarkParser-4             3677365000   3728672000   +1.40%
garbage.BenchmarkParser-8             3517253000   3583968000   +1.90%
garbage.BenchmarkParser-16            3506562000   3591414000   +2.42%

garbage.BenchmarkTree                  494435529    499580882   +1.04%
garbage.BenchmarkTree-4                468482117    467387294   -0.23%
garbage.BenchmarkTree-8                488533235    478311117   -2.09%
garbage.BenchmarkTree-2                499652705    499324235   -0.07%
garbage.BenchmarkTree-16               507835176    502005705   -1.15%

garbage.BenchmarkTree2                  31453900     33296800   +5.86%
garbage.BenchmarkTree2-2                21440600     22466400   +4.78%
garbage.BenchmarkTree2-4                10982000     11402700   +3.83%
garbage.BenchmarkTree2-8                 7544700      7476500   -0.90%
garbage.BenchmarkTree2-16                7049500      7338200   +4.10%

garbage.BenchmarkParserPause           135815000    139529142   +2.73%
garbage.BenchmarkParserPause-2          92691523     95229190   +2.74%
garbage.BenchmarkParserPause-4          53392190     53083476   -0.58%
garbage.BenchmarkParserPause-8          36059523     34594800   -4.06%
garbage.BenchmarkParserPause-16         30174300     30063300   -0.37%

garbage.BenchmarkTreePause              20969784     21866920   +4.28%
garbage.BenchmarkTreePause-2            20215875     20731125   +2.55%
garbage.BenchmarkTreePause-4            17240709     17275837   +0.20%
garbage.BenchmarkTreePause-8            18196386     17898777   -1.64%
garbage.BenchmarkTreePause-16           20621158     20662772   +0.20%

garbage.BenchmarkTree2Pause            173992142    184336857   +5.95%
garbage.BenchmarkTree2Pause-2          131281904    138005714   +5.12%
garbage.BenchmarkTree2Pause-4           93484952     98449238   +5.31%
garbage.BenchmarkTree2Pause-8           88950523     89286095   +0.38%
garbage.BenchmarkTree2Pause-16          86071238     89568666   +4.06%

garbage.BenchmarkParserLastPause       327247000    342189000   +4.57%
garbage.BenchmarkParserLastPause-2     217039000    217224000   +0.09%
garbage.BenchmarkParserLastPause-4     119722000    121327000   +1.34%
garbage.BenchmarkParserLastPause-8      70806000     71941000   +1.60%
garbage.BenchmarkParserLastPause-16     62813000     60166000   -4.21%

garbage.BenchmarkTreeLastPause          28420000     27840000   -2.04%
garbage.BenchmarkTreeLastPause-2        23514000     27390000  +16.48%
garbage.BenchmarkTreeLastPause-4        21773000     21414000   -1.65%
garbage.BenchmarkTreeLastPause-8        24072000     21705000   -9.83%
garbage.BenchmarkTreeLastPause-16       25149000     23932000   -4.84%

garbage.BenchmarkTree2LastPause        314491000    332894000   +5.85%
garbage.BenchmarkTree2LastPause-2      214363000    224611000   +4.78%
garbage.BenchmarkTree2LastPause-4      109778000    113976000   +3.82%
garbage.BenchmarkTree2LastPause-8       75390000     67223000  -10.83%
garbage.BenchmarkTree2LastPause-16      70333000     73216000   +4.10%

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5991057
 2012-04-07 17:02:44 +04:00
Dmitriy Vyukov 9903d6870f runtime: minor refactoring in preparation for parallel GC 
factor sweepspan() out of sweep(), no logical changes

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5991047
 2012-04-05 21:02:20 +04:00
Dmitriy Vyukov d839a809b2 runtime: make GC stats per-M 
This is factored out part of:
https://golang.org/cl/5279048/
(Parallel GC)

benchmark                             old ns/op    new ns/op    delta
garbage.BenchmarkParser              3999106750   3975026500   -0.60%
garbage.BenchmarkParser-2            3720553750   3719196500   -0.04%
garbage.BenchmarkParser-4            3502857000   3474980500   -0.80%
garbage.BenchmarkParser-8            3375448000   3341310500   -1.01%
garbage.BenchmarkParserLastPause      329401000    324097000   -1.61%
garbage.BenchmarkParserLastPause-2    208953000    214222000   +2.52%
garbage.BenchmarkParserLastPause-4    110933000    111656000   +0.65%
garbage.BenchmarkParserLastPause-8     71969000     78230000   +8.70%
garbage.BenchmarkParserPause          230808842    197237400  -14.55%
garbage.BenchmarkParserPause-2        123674365    125197595   +1.23%
garbage.BenchmarkParserPause-4         80518525     85710333   +6.45%
garbage.BenchmarkParserPause-8         58310243     56940512   -2.35%
garbage.BenchmarkTree2                 31471700     31289400   -0.58%
garbage.BenchmarkTree2-2               21536800     21086300   -2.09%
garbage.BenchmarkTree2-4               11074700     10880000   -1.76%
garbage.BenchmarkTree2-8                7568600      7351400   -2.87%
garbage.BenchmarkTree2LastPause       314664000    312840000   -0.58%
garbage.BenchmarkTree2LastPause-2     215319000    210815000   -2.09%
garbage.BenchmarkTree2LastPause-4     110698000    108751000   -1.76%
garbage.BenchmarkTree2LastPause-8      75635000     73463000   -2.87%
garbage.BenchmarkTree2Pause           174280857    173147571   -0.65%
garbage.BenchmarkTree2Pause-2         131332714    129665761   -1.27%
garbage.BenchmarkTree2Pause-4          93803095     93422904   -0.41%
garbage.BenchmarkTree2Pause-8          86242333     85146761   -1.27%

R=rsc
CC=golang-dev
https://golang.org/cl/5987045
 2012-04-05 20:48:28 +04:00
Dmitriy Vyukov fd04f05f2f runtime: replace XOR AX, AX with MOV $0, AX 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5985048
 2012-04-05 18:59:50 +04:00
Dmitriy Vyukov 4667571619 runtime: add 64-bit atomics 
This is factored out part of:
https://golang.org/cl/5279048/
(Parallel GC)

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5985047
 2012-04-05 18:47:43 +04:00
Dmitriy Vyukov a28a10e1a2 runtime: remove redundant code 
R=rsc
CC=golang-dev
https://golang.org/cl/5987046
 2012-04-05 18:37:46 +04:00
Maxim Pimenov 6727a2ad78 runtime: fix a comment 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5975043
 2012-04-02 11:27:50 -04:00
Russ Cox 5eb007dede runtime: work around false negative in deadlock detection 
Not a complete fix for issue 3342, but fixes the trivial case.
There may still be a race in the instants before and after
a scavenger-induced garbage collection.

Intended to be "obviously safe": a call to runtime·gosched
before main.main is no different than a call to runtime.Gosched
at the beginning of main.main, and it is (or had better be)
safe to call runtime.Gosched at any point during main.

Update #3342.

R=iant
CC=golang-dev
https://golang.org/cl/5919052
 2012-03-27 12:22:19 -04:00
Mikio Hara 4c2614c57c undo CL 5844051 / 5d0322034aa8 
Breaks closure test when GOMAXPROCS=2 or more.

««« original CL description
runtime: restore deadlock detection in the simplest case.

Fixes #3342.

R=iant, r, dave, rsc
CC=golang-dev, remy
https://golang.org/cl/5844051

»»»

R=rsc
CC=golang-dev
https://golang.org/cl/5924045
 2012-03-27 13:05:17 +09:00
Rémy Oudompheng 84bb2547fb runtime: restore deadlock detection in the simplest case. 
Fixes #3342.

R=iant, r, dave, rsc
CC=golang-dev, remy
https://golang.org/cl/5844051
 2012-03-26 23:06:20 -04:00
Shenghou Ma 4b1933dfb2 runtime: remove unused goc2c.c 
Its functionality has been moved into cmd/dist.

R=golang-dev, r, iant
CC=golang-dev
https://golang.org/cl/5843062
 2012-03-21 00:49:45 +08:00
Russ Cox 2e4a035995 runtime: do not handle signals before configuring handler 
There was a small window during program initialization
where a signal could come in before the handling mechanisms
were set up to handle it.  Delay the signal-handler installation
until we're ready for the signals.

Fixes #3314.

R=golang-dev, dsymonds, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/5833049
 2012-03-15 22:17:54 -04:00
Russ Cox bd6404a4cc runtime: fix arm build 
TBR=golang-dev
CC=golang-dev
https://golang.org/cl/5832047
 2012-03-15 17:40:17 -04:00
Russ Cox 9e5db8c90a 5l, 6l, 8l: fix stack split logic for stacks near default segment size 
Fixes #3310.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5823051
 2012-03-15 15:22:30 -04:00
Shenghou Ma b2a9079e54 runtime: manage stack by ourselves for badcallback on windows/amd64 
This function uses 48-byte of precious non-split stack for every callback
function, and without this CL, it can easily overflow the non-split stack.
I encountered this when trying to enable misc/cgo/test on windows/amd64.

R=rsc
CC=golang-dev
https://golang.org/cl/5784075
 2012-03-15 02:24:49 +08:00
Mikio Hara 9eeb90945e runtime/cgo: linux signal masking 
Fixes #3314.
Fixes #3101 (again).

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5820047
 2012-03-14 13:07:25 +09:00
Mikio Hara 1fc9a17c7e runtime/cgo: darwin signal masking 
Fixes #3101 (again).

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5825043
 2012-03-14 12:49:59 +09:00
Alex Brainman 16ade99d9d runtime: fix windows/amd64 exception handler 
R=golang-dev, rsc
CC=golang-dev, hectorchu
https://golang.org/cl/5797077
 2012-03-12 22:42:55 -04:00
Russ Cox 2d3cc97c9c runtime: fix windows/amd64 
Maybe.

TBR=bradfitz
CC=golang-dev
https://golang.org/cl/5754091
 2012-03-12 16:48:16 -04:00
Russ Cox b23691148f runtime: print error on receipt of signal on non-Go thread 
It's the best we can do before Go 1.

For issue 3250; not a fix but at least less mysterious.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5797068
 2012-03-12 15:55:18 -04:00
Russ Cox c9e5600f7d runtime: move runtime.write back to C 
It may have to switch stacks, since we are calling
a DLL instead of a system call.

badcallback says where it is, because it is being called
on a Windows stack already.

R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/5782060
 2012-03-09 00:10:34 -05:00
Russ Cox 8a1b3d5a57 runtime: fix windows build 
Implement runtime·write, like on the other systems,
and also runtime·badcallback, in assembly to reduce
stack footprint.

TBR=golang-dev
CC=golang-dev
https://golang.org/cl/5785055
 2012-03-08 15:53:11 -05:00
Russ Cox 36aa7d4d14 runtime: inline calls to notok 
When a very low-level system call that should never fail
does fail, we call notok, which crashes the program.
Often, we are then left with only the program counter as
information about the crash, and it is in notok.
Instead, inline calls to notok (it is just one instruction
on most systems) so that the program counter will
tell us which system call is unhappy.

R=golang-dev, gri, minux.ma, bradfitz
CC=golang-dev
https://golang.org/cl/5792048
 2012-03-08 14:03:56 -05:00
Russ Cox 9b73238daa cgo, runtime: diagnose callback on non-Go thread 
Before:
$ go run x.go
signal 11 (core dumped)
$

After:
$ go run x.go
runtime: cgo callback on thread not created by Go.
signal 11 (core dumped)
$

For issue 3068.
Not a fix, but as much of a fix as we can do before Go 1.

R=golang-dev, rogpeppe, gri
CC=golang-dev
https://golang.org/cl/5781047
 2012-03-08 12:12:40 -05:00
Russ Cox b0beeb1501 runtime: fix freebsd crash 
FreeBSD, alone among our supported operating systems,
required that usleep not be interrupted.  Don't require that.

Fixes #3217.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5781045
 2012-03-07 15:30:54 -05:00
Rémy Oudompheng 3dcedb620c runtime: try extending arena size in 32-bit allocator. 
If it didn't reach the limit, we can try extending the arena
before resorting to random memory mappings and praying for the
kernel to be kind.

Fixes #3173.

R=rsc, rsc
CC=golang-dev
https://golang.org/cl/5725045
 2012-03-07 14:21:45 -05:00
Russ Cox b37841cc06 runtime/pprof: disable test on Leopard 64-bit 
Fixes #3234.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5756078
 2012-03-07 11:44:54 -05:00
Ian Lance Taylor aabbcda816 runtime: remove unused runtime·signame and runtime·newError 
R=golang-dev
CC=golang-dev
https://golang.org/cl/5756044
 2012-03-06 09:07:00 -08:00
Russ Cox 4e110af169 runtime: add Compiler 
R=iant, r, gri
CC=golang-dev
https://golang.org/cl/5720073
 2012-03-05 22:28:02 -05:00
Rémy Oudompheng aa1aaee7fd runtime: wait for main goroutine before setting GOMAXPROCS. 
Fixes #3182.

R=golang-dev, dvyukov, rsc
CC=golang-dev, remy
https://golang.org/cl/5732057
 2012-03-05 16:40:27 -05:00
Russ Cox c0a842e57f runtime/debug: fix test when source cannot be found 
This happens with GOROOT_FINAL=/somewhere/else

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5727069
 2012-03-05 16:13:15 -05:00
Russ Cox dc159fabff runtime: run init on main thread 
Fixes #3125.

R=golang-dev, r, minux.ma
CC=golang-dev
https://golang.org/cl/5714049
 2012-03-01 11:48:17 -05:00
Shenghou Ma 357b257cd1 runtime/pprof: skip test on 64-bit Mac OS X 10.6 
R=rsc, bsiegert
CC=golang-dev
https://golang.org/cl/5709060
 2012-03-01 03:11:37 +08:00
Luuk van Dijk fb2706113f pkg/runtime: 2 sanity checks in the runtime-gdb.py prettyprinters. 
Don't try to print obviously corrupt slices or interfaces.
Doesn't actually solve 3047 or 2818, but seems a good idea anyway.

R=rsc, bsiegert
CC=golang-dev
https://golang.org/cl/5708061
 2012-02-29 16:42:25 +01:00