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Commit Graph

19974 Commits

Author SHA1 Message Date
Ian Lance Taylor
6c007bb065 runtime: only use a single variable in USED
The gccgo version of USED only accepts a single variable, so
this simplifies merging.

LGTM=minux, dave
R=golang-codereviews, minux, dave
CC=golang-codereviews
https://golang.org/cl/115630043
2014-08-04 20:29:36 -07:00
Ian Lance Taylor
aac1eabcee test: add test for function type in function literal
The gccgo compiler used to fail this test.  This was the root
cause of http://gcc.gnu.org/PR61308 .  The fix for the gccgo
compiler is https://golang.org/cl/122020043 .

LGTM=dave, bradfitz
R=golang-codereviews, dave, bradfitz
CC=golang-codereviews
https://golang.org/cl/121200043
2014-08-04 19:50:49 -07:00
Brad Fitzpatrick
77df26f0bd archive/zip: accept bogus trailing zeros in extras
Popular tools both add incorrect trailing zeroes to the zip
extras, and popular tools accept trailing zeros. We seemed to
be the only ones being strict here. Stop being strict. :(

Fixes #8186

LGTM=ruiu, adg, dave
R=adg, ruiu, dave
CC=frohrweck, golang-codereviews
https://golang.org/cl/117550044
2014-08-04 16:12:55 -07:00
Mikio Hara
5c055e74d0 net: consolidate sockaddrToAddr functions
This CL removes sockaddrToAddr functions from socket creation
operations to avoid the bug like issue 7183.

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/105100046
2014-08-05 06:10:46 +09:00
Rob Pike
fdaeec580f encoding/gob: save a call to userType
Avoid some pressure on the global mutex by lifting the call to userType
out of the closure.
TOTH to Matt Harden.

LGTM=crawshaw, ruiu
R=golang-codereviews, crawshaw, ruiu
CC=golang-codereviews
https://golang.org/cl/117520043
2014-08-03 15:14:59 -07:00
Brad Fitzpatrick
aa69a3c386 net: fix Dial comment about IPv6 addresses
LGTM=r
R=golang-codereviews, r
CC=adg, golang-codereviews
https://golang.org/cl/118550043
2014-08-01 21:35:03 -07:00
Peter Collingbourne
fe513d8b3e cmd/go: use correct link flags if main package contains C++/ObjC files
LGTM=iant
R=iant
CC=golang-codereviews
https://golang.org/cl/117470043
2014-08-01 16:45:33 -07:00
Keith Randall
668a55a882 runtime: move constants from map header to map type
A good cleanup anyway, and it makes some room for an additional
field needed for issue 8412.

Update #8412

LGTM=iant
R=iant, khr
CC=golang-codereviews
https://golang.org/cl/112700043
2014-08-01 14:38:56 -07:00
David du Colombier
6d20e72587 test/run: go fmt
LGTM=josharian, r
R=golang-codereviews, josharian, r
CC=golang-codereviews
https://golang.org/cl/120160043
2014-08-01 22:34:36 +02:00
Josh Bleecher Snyder
bc9e160443 runtime: prevent pointless jmp in amd64 and 386 memmove
6a and 8a rearrange memmove such that the fallthrough from move_1or2 to move_0 ends up being a JMP to a RET. Insert an explicit RET to prevent such silliness.

Do the same for memclr as prophylaxis.

benchmark                old ns/op     new ns/op     delta
BenchmarkMemmove1        4.59          4.13          -10.02%
BenchmarkMemmove2        4.58          4.13          -9.83%

LGTM=khr
R=golang-codereviews, dvyukov, minux, ruiu, bradfitz, khr
CC=golang-codereviews
https://golang.org/cl/120930043
2014-08-01 06:21:08 -07:00
Alex Brainman
74b62b4864 runtime: implement monotonic clocks on windows
Update #6007.

LGTM=minux, dvyukov
R=golang-codereviews, dvyukov, patrick, aram.h, minux
CC=golang-codereviews
https://golang.org/cl/108700045
2014-08-01 11:18:11 +10:00
Keith Randall
8ee2a6658b runtime: missed a file in alg checkin
TBR=dvyukov
CC=golang-codereviews
https://golang.org/cl/122740044
2014-07-31 15:12:53 -07:00
Keith Randall
a2a9768414 runtime: convert hash functions to Go calling convention.
Create proper closures so hash functions can be called
directly from Go.  Rearrange calling convention so return
value is directly accessible.

LGTM=dvyukov
R=golang-codereviews, dvyukov, dave, khr
CC=golang-codereviews
https://golang.org/cl/119360043
2014-07-31 15:07:05 -07:00
Rui Ueyama
5a3336096f strconv: remove needless cast
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/119340043
2014-07-31 13:54:42 -07:00
Keith Randall
721c8735df runtime: move built-in print routines to go.
Fixes #8297

LGTM=bradfitz
R=golang-codereviews, bradfitz, khr, dave, dvyukov
CC=golang-codereviews
https://golang.org/cl/119240043
2014-07-31 13:48:48 -07:00
Keith Randall
53304558f9 runtime: fix 32 bit build.
int(maxMem) is negative on 32 bits.  Need to use
unsigned arithmetic.

TBR=bradfitz
CC=golang-codereviews
https://golang.org/cl/121000045
2014-07-31 13:07:16 -07:00
Keith Randall
cc9ec52d73 runtime: convert slice operations to Go.
LGTM=bradfitz, dvyukov
R=golang-codereviews, bradfitz, dvyukov
CC=golang-codereviews
https://golang.org/cl/120190044
2014-07-31 12:43:40 -07:00
Josh Bleecher Snyder
2c982ce9a0 cmd/gc: fix example flag in comment
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/118480044
2014-07-31 10:34:51 -07:00
Keith Randall
1e0b378905 runtime: use right mask to extract type kind
Cleanup from recent malloc changes.

LGTM=dvyukov
R=dvyukov
CC=golang-codereviews
https://golang.org/cl/120960043
2014-07-31 09:32:09 -07:00
Dmitriy Vyukov
cecca43804 runtime: get rid of free
Several reasons:
1. Significantly simplifies runtime.
2. This code proved to be buggy.
3. Free is incompatible with bump-the-pointer allocation.
4. We want to write runtime in Go, Go does not have free.
5. Too much code to free env strings on startup.

LGTM=khr
R=golang-codereviews, josharian, tracey.brendan, khr
CC=bradfitz, golang-codereviews, r, rlh, rsc
https://golang.org/cl/116390043
2014-07-31 12:55:40 +04:00
Nigel Tao
17992f7a06 image/jpeg: rename some internal variables.
LGTM=dsymonds
R=dsymonds
CC=golang-codereviews
https://golang.org/cl/120980043
2014-07-31 17:34:48 +10:00
Keith Randall
5a008acec1 runtime: cast to uintptr to match %p formatter.
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/121920043
2014-07-30 20:24:03 -07:00
Matthew Dempsky
58241bfdf7 runtime: fix cmallocgc's C prototype
LGTM=khr
R=khr
CC=golang-codereviews
https://golang.org/cl/121910043
2014-07-30 17:08:33 -07:00
Keith Randall
1329d044cf runtime: fix stack memory test
Stand-alone this test is fine.  Run together with
others, however, the stack used can actually go
negative because other tests are freeing stack
during its execution.

This behavior is new with the new stack allocator.
The old allocator never returned (min-sized) stacks.

This test is fairly poor - it needs to run in
isolation to be accurate.  Maybe we should delete it.

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/119330044
2014-07-30 11:02:40 -07:00
Rob Pike
aff7883d9a runtime: fix assembler macro definitions to be consistent in use of center-dot
The DISPATCH and CALLFN macro definitions depend on an inconsistency
between the internal cpp mini-implementation and the language proper in
whether center-dot is an identifier character. The macro depends on it not
being an identifier character, but the resulting code depends on it being one.

Remove the dependence on the inconsistency by placing the center-dot into
the macro invocation rather that the body.

No semantic change. This is just renaming macro arguments.

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/119320043
2014-07-30 10:11:44 -07:00
Keith Randall
d703ac338e runtime: fix freebsd build. Assignment is int32* on 32 bit
machines and int64* on 64 bit machines.

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/117330044
2014-07-30 09:18:00 -07:00
Keith Randall
4aa50434e1 runtime: rewrite malloc in Go.
This change introduces gomallocgc, a Go clone of mallocgc.
Only a few uses have been moved over, so there are still
lots of uses from C. Many of these C uses will be moved
over to Go (e.g. in slice.goc), but probably not all.
What should remain of C's mallocgc is an open question.

LGTM=rsc, dvyukov
R=rsc, khr, dave, bradfitz, dvyukov
CC=golang-codereviews
https://golang.org/cl/108840046
2014-07-30 09:01:52 -07:00
Rui Ueyama
fe4fc94b04 mime/multipart: delay reading random source
If a user sets his/her own boundary string with SetBoundary,
we don't need to call randomBoundary at all.

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/95760043
2014-07-29 18:24:50 -07:00
Mikio Hara
678ba85e53 undo CL 107280044 / ee11f19bc514
preparing for the syscall package freeze.

««« original CL description
syscall: consolidate, simplify socket options for Unix-like systems

Also exposes common socket option functions on Solaris.

Update #7174
Update #7175

LGTM=aram
R=golang-codereviews, aram
CC=golang-codereviews
https://golang.org/cl/107280044
»»»

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/121880043
2014-07-30 10:02:16 +09:00
Mikio Hara
3bf75e691f undo CL 104290043 / 1d13818e6b3d
preparing for the syscall package freeze.

««« original CL description
syscall: add source-specific multicast socket options for FreeBSD

Update #8266

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/104290043
»»»

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/113660043
2014-07-30 10:01:32 +09:00
Rui Ueyama
a219ff25c6 bufio: fix rot13Reader bug in test
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/118410043
2014-07-29 17:56:28 -07:00
Mikio Hara
ed963c908d undo CL 102610045 / 7244ce3ae9db
preparing for the syscall package freeze.

««« original CL description
syscall: regenerate z-files for darwin

Updates z-files from 10.7 kernel-based to 10.9 kernel-based.

LGTM=iant
R=golang-codereviews, bradfitz, iant
CC=golang-codereviews
https://golang.org/cl/102610045
»»»

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/114530044
2014-07-30 09:47:39 +09:00
Mikio Hara
d7566da188 undo CL 101460043 / 746e175af5d2
preparing for the syscall package freeze.

««« original CL description
syscall: add source-specific multicast socket options for Darwin

Update #8266

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/101460043
»»»

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/115350043
2014-07-30 09:25:37 +09:00
Rob Pike
2edc04ccb1 A+C: fixed doubled entry
Delete an erroneously doubled name in both files. Once is enough.

LGTM=dave
R=golang-codereviews, dave
CC=golang-codereviews
https://golang.org/cl/118420043
2014-07-29 17:18:00 -07:00
Mihai Borobocea
bfdeb57cc3 fmt: measure width in runes not bytes with %c and %q for ints
This is meant to share my progress on Issue 8275, if it's useful to you. I'm not familiar with the formatter's internals, so this change is likely naive.

Change these calls to measure width in runes not bytes:
fmt.Printf("(%5q)\n", '§')
fmt.Printf("(%3c)\n", '§')

 Fixes #8275.

LGTM=r
R=golang-codereviews, r
CC=golang-codereviews
https://golang.org/cl/104320043
2014-07-29 16:46:53 -07:00
Keith Randall
d2204e6c0e cmd/gc: don't allow escaping arguments in the runtime package.
This is a case that was missed in https://golang.org/cl/105280047/

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/120910043
2014-07-29 14:38:08 -07:00
Rob Pike
fbfd32b80c A+C: Mihai Borobocea (individual CLA)
Generated by a+c.

R=gobot
CC=golang-codereviews
https://golang.org/cl/115370044
2014-07-29 13:34:47 -07:00
Dmitriy Vyukov
dfa5a99ebb runtime: generate type info for chans
LGTM=khr
R=golang-codereviews, khr
CC=golang-codereviews, khr
https://golang.org/cl/115280043
2014-07-29 22:06:47 +04:00
Dmitriy Vyukov
fe3ee5741d runtime: verify hmap type size
LGTM=khr
R=golang-codereviews, khr
CC=golang-codereviews, khr
https://golang.org/cl/114510044
2014-07-29 22:06:20 +04:00
Dmitriy Vyukov
d514e2915c runtime: mark global var as NOPTR
LGTM=dave
R=golang-codereviews, dave
CC=golang-codereviews
https://golang.org/cl/120280044
2014-07-29 15:18:01 +04:00
Dmitriy Vyukov
5dab2da954 runtime: mark global var as NOPTR
LGTM=dave
R=golang-codereviews, dave
CC=golang-codereviews
https://golang.org/cl/119300043
2014-07-29 14:45:07 +04:00
Mikio Hara
c0325f5083 net: prevent spurious on-connect events via epoll on linux
On Linux, adding a socket descriptor to epoll instance before getting
the EINPROGRESS return value from connect system call could be a root
cause of spurious on-connect events.

See golang.org/issue/8276, golang.org/issue/8426 for further information.

All credit to Jason Eggleston <jason@eggnet.com>

Fixes #8276.
Fixes #8426.

LGTM=dvyukov
R=dvyukov, golang-codereviews, adg, dave, iant, alex.brainman
CC=golang-codereviews
https://golang.org/cl/120820043
2014-07-29 16:48:11 +09:00
Dmitriy Vyukov
9333fe8e92 cmd/ld: better diagnostics on unaligned symbols
Want to see why builders are failing.
Then decide whether to rollback or fix.

TBR=khr
R=khr
CC=golang-codereviews
https://golang.org/cl/114510043
2014-07-29 11:22:57 +04:00
Dmitriy Vyukov
cd17a717f9 runtime: simpler and faster GC
Implement the design described in:
https://docs.google.com/document/d/1v4Oqa0WwHunqlb8C3ObL_uNQw3DfSY-ztoA-4wWbKcg/pub

Summary of the changes:
GC uses "2-bits per word" pointer type info embed directly into bitmap.
Scanning of stacks/data/heap is unified.
The old spans types go away.
Compiler generates "sparse" 4-bits type info for GC (directly for GC bitmap).
Linker generates "dense" 2-bits type info for data/bss (the same as stacks use).

Summary of results:
-1680 lines of code total (-1000+ in mgc0.c only)
-25% memory consumption
-3-7% binary size
-15% GC pause reduction
-7% run time reduction

LGTM=khr
R=golang-codereviews, rsc, christoph, khr
CC=golang-codereviews, rlh
https://golang.org/cl/106260045
2014-07-29 11:01:02 +04:00
Rui Ueyama
0100afbdcc image/png: use branch-free abs function
benchmark                        old ns/op     new ns/op     delta
BenchmarkPaeth                   5.06          6.02          +18.97%
BenchmarkDecodeGray              1010551       956911        -5.31%
BenchmarkDecodeNRGBAGradient     3877813       3754160       -3.19%
BenchmarkDecodeNRGBAOpaque       3194058       3079094       -3.60%
BenchmarkDecodePaletted          699243        700211        +0.14%
BenchmarkDecodeRGB               2835733       2692120       -5.06%
BenchmarkDecodeInterlacing       3651805       3563124       -2.43%
BenchmarkEncodeGray              4399183       4404113       +0.11%
BenchmarkEncodeNRGBOpaque        13323627      13306485      -0.13%
BenchmarkEncodeNRGBA             15840092      15751188      -0.56%
BenchmarkEncodePaletted          4396622       4404373       +0.18%
BenchmarkEncodeRGBOpaque         13320475      13279189      -0.31%
BenchmarkEncodeRGBA              36898392      36781002      -0.32%

LGTM=nigeltao
R=nigeltao
CC=golang-codereviews
https://golang.org/cl/117290043
2014-07-29 14:29:14 +10:00
Rob Pike
d3fb02b5c5 time: make it clearer that the reference time is the reference time.
Because the reference time is the reference time but beginners seem
to think otherwise, make it clearer you can't choose the reference time.

LGTM=josharian, dave
R=golang-codereviews, josharian, dave
CC=golang-codereviews
https://golang.org/cl/117250044
2014-07-28 17:24:39 -07:00
Adam Langley
30fbcc7576 crypto/tls: check curve equation in ECDHE.
This change causes a TLS client and server to verify that received
elliptic curve points are on the expected curve. This isn't actually
necessary in the Go TLS stack, but Watson Ladd has convinced me that
it's worthwhile because it's pretty cheap and it removes the
possibility that some change in the future (e.g. tls-unique) will
depend on it without the author checking that precondition.

LGTM=bradfitz
R=bradfitz
CC=golang-codereviews
https://golang.org/cl/115290046
2014-07-28 15:46:27 -07:00
Adam Langley
8332112d0a encoding/asn1: only omit optional elements matching default value.
ASN.1 elements can be optional, and can have a default value.
Traditionally, Go has omitted elements that are optional and that have
the zero value. I believe that's a bug (see [1]).

This change causes an optional element with a default value to only be
omitted when it has that default value. The previous behaviour of
omitting optional, zero elements with no default is retained because
it's used quite a lot and will break things if changed.

[1] https://groups.google.com/d/msg/Golang-nuts/9Ss6o9CW-Yo/KL_V7hFlyOAJ

Fixes #7780.

R=bradfitz

LGTM=bradfitz
R=golang-codereviews, bradfitz, rsc
CC=golang-codereviews, r
https://golang.org/cl/86960045
2014-07-28 14:47:37 -07:00
Asim Shankar
42d0785bbd crypto/tls: Support ECDSA keys in generate_cert.go
R=golang-codereviews, bradfitz, agl
CC=golang-codereviews
https://golang.org/cl/117180043
2014-07-28 14:46:34 -07:00
Brad Fitzpatrick
f5037ee127 net/http: make ServeContent support dates in If-Range headers
Fixes #8367

LGTM=adg
R=adg
CC=golang-codereviews
https://golang.org/cl/116300044
2014-07-27 23:30:53 -07:00