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Commit Graph

689 Commits

Author SHA1 Message Date
Christopher Nielsen
728c16cf13 build: Changes to the build infrastructure for NetBSD.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5476048
2011-12-12 15:42:06 -05:00
Lucio De Re
e628144aeb pkg/runtime/Makefile: sorted object module names.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5479060
2011-12-11 09:21:53 -08:00
Dmitriy Vyukov
428062da4e ld: increase default stack size on Windows for cgo
Fixes #2437.

R=rsc, hectorchu, mattn.jp, alex.brainman, jdpoirier, snaury, n13m3y3r
CC=golang-dev
https://golang.org/cl/5371049
2011-12-07 16:53:17 +03:00
Russ Cox
b9ccd077dc runtime: prep for type-specific algorithms
Equality on structs will require arbitrary code for type equality,
so change algorithm in type data from uint8 to table pointer.
In the process, trim top-level map structure from
104/80 bytes (64-bit/32-bit) to 24/12.

Equality on structs will require being able to call code generated
by the Go compiler, and C code has no way to access Go return
values, so change the hash and equal algorithm functions to take
a pointer to a result instead of returning the result.

R=ken
CC=golang-dev
https://golang.org/cl/5453043
2011-12-05 09:40:22 -05:00
Russ Cox
efe3d35fc5 time: new Time, Duration, ZoneInfo types
R=r, bradfitz, gri, dsymonds, iant
CC=golang-dev
https://golang.org/cl/5392041
2011-11-30 11:59:44 -05:00
Alex Brainman
fbdec642a9 runtime: make sure windows/amd64 stack is 16-byte aligned on syscall entry (fixes build)
R=golang-dev, vcc.163
CC=golang-dev
https://golang.org/cl/5445051
2011-11-29 12:57:20 +11:00
Alex Brainman
6d4c18a4af syscall: implement Syscall15
Fixes #2251.

R=golang-dev, rsc
CC=golang-dev, jp
https://golang.org/cl/5440050
2011-11-29 10:24:19 +11:00
Dmitriy Vyukov
a899a467f2 time: fix timer stop
Due to data structure corruption,
some timers could not be removed.
Fixes #2495.

R=golang-dev, adg
CC=golang-dev, mdbrown
https://golang.org/cl/5437060
2011-11-25 14:13:10 +03:00
Anthony Martin
4a2d30e13b runtime: add nanotime for Plan 9
R=paulzhol, rsc, dave, rminnich
CC=golang-dev
https://golang.org/cl/5327063
2011-11-17 22:09:28 -05:00
Alex Brainman
0d37998a06 syscall: make windows build again after d3963c0fca78 change
R=rsc, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/5373097
2011-11-15 12:48:22 -05:00
Russ Cox
94c2536e3f runtime: avoid allocation for make([]T, 0)
R=gri, iant, iant
CC=golang-dev
https://golang.org/cl/5375093
2011-11-15 12:05:25 -05:00
Russ Cox
0acd879c26 syscall: take over env implementation
The environment is needed by package time, which
we want not to depend on os (so that os can use
time.Time), so push down into syscall.

Delete syscall.Sleep, now unnecessary.

The package os environment API is preserved;
it is only the implementation that is moving to syscall.

Delete os.Envs, which was undocumented,
uninitialized on Windows and Plan 9, and
not maintained by Setenv and Clearenv.
Code can call os.Environ instead.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5370091
2011-11-14 14:06:50 -05:00
Dmitriy Vyukov
dc6726b37f runtime: fix timers crash
Timer callbacks occasionally crash
with "sched while holding locks" message.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5381043
2011-11-14 21:59:48 +03:00
Alex Brainman
946647fb45 runtime: fix syscall test to satisfy new error
R=rsc
CC=golang-dev
https://golang.org/cl/5369103
2011-11-14 20:54:47 +11:00
Joel Sing
13dc53055f runtime: remove no longer used enums for openbsd
The code that used these has been moved to lock_sema.c.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5376062
2011-11-13 03:58:24 +11:00
Ian Lance Taylor
3f2d787c2b runtime: remove declarations of nonexistent functions
R=rsc, r
CC=golang-dev
https://golang.org/cl/5369089
2011-11-11 14:30:27 -08:00
Russ Cox
5fc3771b3a gc: remove m[k] = x, false
R=ken2
CC=golang-dev
https://golang.org/cl/5376076
2011-11-11 16:48:25 -05:00
Russ Cox
dd2abe5152 runtime, syscall: convert from godefs to cgo
R=golang-dev, mikioh.mikioh, r
CC=golang-dev
https://golang.org/cl/5348052
2011-11-10 19:08:28 -05:00
Joel Sing
85b7419211 runtime: fix semasleep() duration for openbsd
The timespec passed to thrsleep() needs to be an absolute/realtime
value, so add the current nanotime to ns.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5374048
2011-11-10 11:42:01 -08:00
Mikio Hara
be8025604e runtime: fix freebsd build
R=rsc, bradfitz
CC=golang-dev
https://golang.org/cl/5370050
2011-11-10 10:02:24 +09:00
Russ Cox
3b860269ee runtime: add timer support, use for package time
This looks like it is just moving some code from
time to runtime (and translating it to C), but the
runtime can do a better job managing the goroutines,
and it needs this functionality for its own maintenance
(for example, for the garbage collector to hand back
unused memory to the OS on a time delay).
Might as well have just one copy of the timer logic,
and runtime can't depend on time, so vice versa.

It also unifies Sleep, NewTicker, and NewTimer behind
one mechanism, so that there are no claims that one
is more efficient than another.  (For example, today
people recommend using time.After instead of time.Sleep
to avoid blocking an OS thread.)

Fixes #1644.
Fixes #1731.
Fixes #2190.

R=golang-dev, r, hectorchu, iant, iant, jsing, alex.brainman, dvyukov
CC=golang-dev
https://golang.org/cl/5334051
2011-11-09 15:17:05 -05:00
Dmitriy Vyukov
fbfed49134 cgo: fix g0 stack guard
Fixes crash when cgo consumes more than 8K
of stack and makes a callback.

Fixes #1328.

R=golang-dev, rogpeppe, rsc
CC=golang-dev, mpimenov
https://golang.org/cl/5371042
2011-11-09 23:11:48 +03:00
Ian Lance Taylor
4ac425fcdd runtime: add comments for various functions in proc.c
R=rsc
CC=golang-dev
https://golang.org/cl/5357047
2011-11-08 18:16:25 -08:00
Rob Pike
45e3bcb343 renaming_3: gofix -r go1pkgrename src/pkg/[m-z]*
R=rsc
CC=golang-dev
https://golang.org/cl/5345045
2011-11-08 15:41:54 -08:00
Joel Sing
0e5cd9d3f6 runtime: add timespec definition for freebsd
R=golang-dev, devon.odell
CC=golang-dev
https://golang.org/cl/5340058
2011-11-08 11:43:58 -05:00
Alex Brainman
b776b9e724 runtime: add windows callback tests
Just a copy of cgo callback tests from misc/cgo/test.

R=rsc
CC=golang-dev, hectorchu
https://golang.org/cl/5331062
2011-11-08 16:53:31 +11:00
Russ Cox
1c42db8835 runtime/cgo: fix data declaration to be extern
Otherwise some OS X toolchains complain about the redeclaration
of libcgo_thread_start by multiple object files.  The real definition
is in util.c.

Fixes #2167.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5364045
2011-11-07 13:15:06 -05:00
Joel Sing
a1c622dfea runtime: fix prototype for openbsd thrsleep
- Fix function prototype for thrsleep().
- Provide enums for clock identifiers.
- Provide timespec structure for use with thrsleep().

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/5360042
2011-11-07 11:57:34 -05:00
Alex Brainman
603d80c28d runtime: windows_386 sighandler to use correct g
Fixes #2403.

R=hectorchu
CC=golang-dev
https://golang.org/cl/5309071
2011-11-07 11:00:14 +11:00
Russ Cox
7f5ae484eb runtime: fix linux/arm nanotime?
TBR=r
CC=golang-dev
https://golang.org/cl/5354041
2011-11-04 08:38:10 -04:00
Russ Cox
cb2040b2ab runtime: fix openbsd nanotime?
TBR=r
CC=golang-dev
https://golang.org/cl/5353041
2011-11-04 07:24:39 -04:00
Russ Cox
f437331f80 time: faster Nanoseconds call
runtime knows how to get the time of day
without allocating memory.

R=golang-dev, dsymonds, dave, hectorchu, r, cw
CC=golang-dev
https://golang.org/cl/5297078
2011-11-03 17:35:28 -04:00
Russ Cox
31452a3618 runtime: fix set and not used
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5305087
2011-11-03 17:35:11 -04:00
Russ Cox
965845a86d all: sort imports
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5319072
2011-11-02 15:54:16 -04:00
Dmitriy Vyukov
ee24bfc058 runtime: unify mutex code across OSes
The change introduces 2 generic mutex implementations
(futex- and semaphore-based). Each OS chooses a suitable mutex
implementation and implements few callbacks (e.g. futex wait/wake).
The CL reduces code duplication, extends some optimizations available
only on Linux/Windows to other OSes and provides ground
for futher optimizations. Chan finalizers are finally eliminated.

(Linux/amd64, 8 HT cores)
benchmark                      old      new
BenchmarkChanContended         83.6     77.8 ns/op
BenchmarkChanContended-2       341      328 ns/op
BenchmarkChanContended-4       382      383 ns/op
BenchmarkChanContended-8       390      374 ns/op
BenchmarkChanContended-16      313      291 ns/op

(Darwin/amd64, 2 cores)
benchmark                      old      new
BenchmarkChanContended         159      172 ns/op
BenchmarkChanContended-2       6735     263 ns/op
BenchmarkChanContended-4       10384    255 ns/op
BenchmarkChanCreation          1174     407 ns/op
BenchmarkChanCreation-2        4007     254 ns/op
BenchmarkChanCreation-4        4029     246 ns/op

R=rsc, jsing, hectorchu
CC=golang-dev
https://golang.org/cl/5140043
2011-11-02 16:42:01 +03:00
Russ Cox
492098eb75 all: rename os.Error to error in various non-code contexts
R=adg
CC=golang-dev
https://golang.org/cl/5328062
2011-11-01 22:58:09 -04:00
Russ Cox
eb6929299b src/pkg/[n-z]*: gofix -r error -force=error
R=golang-dev, bsiegert, iant
CC=golang-dev
https://golang.org/cl/5294074
2011-11-01 22:05:34 -04:00
Russ Cox
c14f71c788 runtime: update for error
R=golang-dev, iant, r
CC=golang-dev
https://golang.org/cl/5306075
2011-11-01 21:48:27 -04:00
Russ Cox
d0eaa58b5a runtime/pprof: document OS X being broken
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5307078
2011-10-31 17:50:25 -04:00
Russ Cox
6808da0163 runtime: lock the main goroutine to the main OS thread during init
We only guarantee that the main goroutine runs on the
main OS thread for initialization.  Programs that wish to
preserve that property for main.main can call runtime.LockOSThread.
This is what programs used to do before we unleashed
goroutines during init, so it is both a simple fix and keeps
existing programs working.

R=iant, r, dave, dvyukov
CC=golang-dev
https://golang.org/cl/5309070
2011-10-27 18:04:12 -07:00
Russ Cox
6ed3fa6553 gc: introduce rune
R=ken, r
CC=golang-dev
https://golang.org/cl/5293046
2011-10-25 22:19:39 -07:00
Hector Chu
2572ca2ff2 runtime: include bootstrap m in mcpu accounting
R=rsc, dvyukov
CC=golang-dev
https://golang.org/cl/5307052
2011-10-25 08:35:20 +01:00
Russ Cox
4e7aac5413 reflect: make unsafe use of SliceHeader gc-friendly
Revert workaround in compiler and
revert test for compiler workaround.

Tested that the 386 build continues to fail if
the gc change is made without the reflect change.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5312041
2011-10-18 10:03:37 -04:00
Russ Cox
1d687c742d gc: add delete(m, x) but leave in m[x] = 0, false.
The old m[x] = 0, false syntax will be deleted
in a month or so, once people have had time to
change their code (there is a gofix in a separate CL).

R=ken2
CC=golang-dev
https://golang.org/cl/5265048
2011-10-18 09:41:32 -04:00
Russ Cox
e40d6e066a runtime: random offset for map iteration
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5285042
2011-10-17 18:49:02 -04:00
Dmitriy Vyukov
b0c674b65d gc: treat uintptr as potentially containing a pointer
Fixes #2376

R=golang-dev, lvd, rsc
CC=golang-dev
https://golang.org/cl/5278048
2011-10-17 15:14:07 -04:00
Dmitriy Vyukov
1135fc3978 runtime: fix crash if user sets MemProfileRate=0
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5284044
2011-10-16 10:49:24 +03:00
Alex Brainman
78479163cb syscall: dll function load and calling changes
New DLL and Proc types to manage and call dll functions. These were
used to simplify syscall tests in runtime package. They were also
used to implement LazyDLL and LazyProc.

LazyProc, like Proc, now have Call function, that just a wrapper for
SyscallN. It is not as efficient as Syscall, but easier to use.

NewLazyDLL now supports non-ascii filenames.

LazyDLL and LazyProc now have Load and Find methods. These can be used
during runtime to discover if some dll functions are not present.

All dll functions now return errors that fit os.Error interface. They
also contain Windows error number.

Some of these changes are suggested by jp.

R=golang-dev, jp, rsc
CC=golang-dev
https://golang.org/cl/5272042
2011-10-15 17:29:25 +11:00
Russ Cox
f58ed4e641 gc: disallow close on receive-only channels
Fixes #2353.
Fixes #2246.

R=golang-dev, r, gri
CC=golang-dev
https://golang.org/cl/5282042
2011-10-13 16:58:04 -04:00
Russ Cox
d1bafffa4b runtime: run goroutines during init
Fixes #583.
Fixes #1776.
Fixes #2001.
Fixes #2112.

R=golang-dev, bradfitz, r, gri
CC=golang-dev
https://golang.org/cl/5265044
2011-10-13 15:54:23 -04:00