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2011-05-03[release-branch.r57] doc: release.r57release.r57Russ Cox
««« CL 4457049 / d222384d1bad doc: release.r57 R=golang-dev, r, adg, r2 CC=golang-dev https://golang.org/cl/4457049 »»» R=golang-dev TBR=r CC=golang-dev https://golang.org/cl/4431087
2011-05-03[release-branch.r57] Make.cmd: create TARGDIR if necessaryRuss Cox
««« CL 4437089 / b2670a39da7c Make.cmd: create TARGDIR if necessary Fixes #1771. R=adg, rsc1 CC=golang-dev https://golang.org/cl/4437089 »»» R=adg CC=golang-dev https://golang.org/cl/4454054
2011-05-03[release-branch.r57] reflect: allow unexported key in Value.MapIndexRuss Cox
««« CL 4444087 / 9abf81a9df90 reflect: allow unexported key in Value.MapIndex Fixes #1748. R=golang-dev, r CC=golang-dev https://golang.org/cl/4444087 »»» R=r, r2 CC=golang-dev https://golang.org/cl/4433099
2011-05-03[release-branch.r57] jpeg: speed up RGBA encoding ~%50Russ Cox
««« CL 4433088 / 099dd59d3976 jpeg: speed up RGBA encoding ~%50 Avoids image.At(), color.RGBA(), opposing 8 bit shifts, and min function calls in a loop. Not as pretty as before, but the pure version is still there to revert back to later if/when the compiler gets better. before (best of 5) jpeg.BenchmarkEncodeRGBOpaque 50 64781360 ns/op 18.97 MB/s after (best of 5) jpeg.BenchmarkEncodeRGBOpaque 50 42044300 ns/op 29.23 MB/s (benchmarked on an HP z600; 16 core Xeon E5520 @ 2.27Ghz) R=r, r2, nigeltao CC=golang-dev https://golang.org/cl/4433088 »»» TBR=adg CC=golang-dev https://golang.org/cl/4431086
2011-05-03[release-branch.r57] doc/install: specify clone -u instead of -rRuss Cox
««« CL 4435081 / 48c0b02c6e7f doc/install: specify clone -u instead of -r R=rsc CC=golang-dev https://golang.org/cl/4435081 »»» TBR=adg CC=golang-dev https://golang.org/cl/4436080
2011-05-03[release-branch.r57] image: fix buildRuss Cox
««« CL 4438090 / 29f6e2e230a3 image: fix build accidentally deleted one method TBR=rsc R=rsc CC=golang-dev https://golang.org/cl/4438090 »»» TBR=adg CC=golang-dev https://golang.org/cl/4445084
2011-05-03[release-branch.r57] image: add type-specific Set methods and use them when ↵Russ Cox
decoding PNG. ««« CL 4428080 / 2098f7682f2d image: add type-specific Set methods and use them when decoding PNG. This speeds up PNG decode about 20% by avoiding per-pixel interface conversions. R=nigeltao, rsc CC=golang-dev https://golang.org/cl/4428080 »»» TBR=adg CC=golang-dev https://golang.org/cl/4426078
2011-05-03[release-branch.r57] http/pprof: fix POST reading bugRuss Cox
««« CL 4430075 / ca45c67d28cf http/pprof: fix POST reading bug R=bradfitz CC=golang-dev https://golang.org/cl/4430075 »»» TBR=adg CC=golang-dev https://golang.org/cl/4454053
2011-05-03[release-branch.r57] 5a, 6a, 8a, cc: remove old environment variablesRuss Cox
««« CL 4445079 / f8cc81f985e5 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 »»» TBR=adg CC=golang-dev https://golang.org/cl/4438096
2011-05-03[release-branch.r57] runtime, sync/atomic: fix arm casRuss Cox
««« CL 4436072 / e280d98747be runtime, sync/atomic: fix arm cas Works around bug in kernel implementation on old ARM5 kernels. Bug was fixed on 26 Nov 2007 (between 2.6.23 and 2.6.24) but old kernels persist. Fixes #1750. R=dfc, golang-dev CC=golang-dev https://golang.org/cl/4436072 »»» TBR=adg CC=golang-dev https://golang.org/cl/4452064
2011-05-03[release-branch.r57] png: speed up opaque RGBA encodingRuss Cox
««« CL 4432077 / 66eb68cbd5c2 png: speed up opaque RGBA encoding With Linux/8g on a 2006 Mac Mini (1.66 GHz Intel Core Duo, 2KB L1, 2MB L2, 2G main memory), GOMAXPROCS unset: start: png.BenchmarkEncodePaletted 50 44772820 ns/op png.BenchmarkEncodeRGBOpaque 10 208395900 ns/op png.BenchmarkEncodeRGBA 5 331088000 ns/op remove interface method calls: png.BenchmarkEncodePaletted 50 44722880 ns/op png.BenchmarkEncodeRGBOpaque 10 139042600 ns/op png.BenchmarkEncodeRGBA 5 334033600 ns/op flate inline min/max(): png.BenchmarkEncodePaletted 50 40631180 ns/op png.BenchmarkEncodeRGBOpaque 10 124894900 ns/op png.BenchmarkEncodeRGBA 5 312099000 ns/op after adler change: png.BenchmarkEncodePaletted 50 40181760 ns/op png.BenchmarkEncodeRGBOpaque 20 121781950 ns/op png.BenchmarkEncodeRGBA 5 313890800 ns/op In comparison to 121 ms on this 2006 machine, on my Core2 Duo 2.66 GHz laptop, the final BenchmarkEncodeRGBOpaque runs in 27 ms. (these are all for 640x480 images) R=nigeltao, rsc, r CC=golang-dev https://golang.org/cl/4432077 »»» TBR=adg CC=golang-dev https://golang.org/cl/4430076
2011-05-03[release-branch.r57] http: rename ErrBodyReadAferClose to ErrBodyReadAfterCloseRuss Cox
««« CL 4432085 / 370c77323b75 http: rename ErrBodyReadAferClose to ErrBodyReadAfterClose R=bradfitz, dsymonds CC=golang-dev https://golang.org/cl/4432085 »»» TBR=adg CC=golang-dev https://golang.org/cl/4425086
2011-05-03[release-branch.r57] mime/multipart: fix regression from previous ReadSlice ↵Russ Cox
change ««« CL 4432083 / 698b5ea9c782 mime/multipart: fix regression from previous ReadSlice change The previous change to make multipart use ReadSlice out of paranoia broke multipart to not deal with large lines in the bodies. We should only be paranoid about long lines in the header sections. Fixes http://code.google.com/p/camlistore/issues/detail?id=4 R=adg CC=golang-dev https://golang.org/cl/4432083 »»» R=adg CC=golang-dev https://golang.org/cl/4452062
2011-05-03[release-branch.r57] http: new error for reading a body after it's been closedRuss Cox
««« CL 4433094 / e30213b07276 http: new error for reading a body after it's been closed R=adg CC=golang-dev https://golang.org/cl/4433094 »»» R=adg CC=golang-dev https://golang.org/cl/4433098
2011-05-03[release-branch.r57] image: png & jpeg encoding benchmarksRuss Cox
««« CL 4445074 / 304d7d2b1d6c image: png & jpeg encoding benchmarks No code changes in this CL. R=r CC=golang-dev https://golang.org/cl/4445074 »»» R=adg CC=golang-dev https://golang.org/cl/4453056
2011-05-03[release-branch.r57] xml: fix reflect errorRuss Cox
««« CL 4431075 / acee6ec98e9a xml: fix reflect error Fixes #1749. R=bradfitz CC=golang-dev https://golang.org/cl/4431075 »»» R=adg CC=golang-dev https://golang.org/cl/4457048
2011-05-03create release-branch.r57Russ Cox
2011-04-28weekly.2011-04-27weekly.2011-04-27Andrew Gerrand
R=rsc CC=golang-dev https://golang.org/cl/4437077
2011-04-28http: add MultipartForm, FormFile, and ParseMultipartForm to RequestAndrew Gerrand
R=rsc, bradfitz CC=golang-dev https://golang.org/cl/4431068
2011-04-27adler32: speed up ~40% by avoiding bounds checksBrad Fitzpatrick
before & after: adler32.BenchmarkGolden 100000 14747 ns/op adler32.BenchmarkGolden 200000 8761 ns/op Found by profiling PNG encoding. R=rsc, bradfitzwork, eds CC=golang-dev https://golang.org/cl/4441073
2011-04-28runtime: fix typo in gc bug fixRuss Cox
This time for sure. R=golang-dev, dsymonds CC=golang-dev https://golang.org/cl/4437078
2011-04-28gc: correctly handle fields of pointer type to recursive forward referencesLorenzo Stoakes
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
2011-04-27runtime: stack split + garbage collection bugRuss Cox
The g->sched.sp saved stack pointer and the g->stackbase and g->stackguard stack bounds can change even while "the world is stopped", because a goroutine has to call functions (and therefore might split its stack) when exiting a system call to check whether the world is stopped (and if so, wait until the world continues). That means the garbage collector cannot access those values safely (without a race) for goroutines executing system calls. Instead, save a consistent triple in g->gcsp, g->gcstack, g->gcguard during entersyscall and have the garbage collector refer to those. The old code was occasionally seeing (because of the race) an sp and stk that did not correspond to each other, so that stk - sp was not the number of stack bytes following sp. In that case, if sp < stk then the call scanblock(sp, stk - sp) scanned too many bytes (anything between the two pointers, which pointed into different allocation blocks). If sp > stk then stk - sp wrapped around. On 32-bit, stk - sp is a uintptr (uint32) converted to int64 in the call to scanblock, so a large (~4G) but positive number. Scanblock would try to scan that many bytes and eventually fault accessing unmapped memory. On 64-bit, stk - sp is a uintptr (uint64) promoted to int64 in the call to scanblock, so a negative number. Scanblock would not scan anything, possibly causing in-use blocks to be freed. In short, 32-bit platforms would have seen either ineffective garbage collection or crashes during garbage collection, while 64-bit platforms would have seen either ineffective or incorrect garbage collection. You can see the invalid arguments to scanblock in the stack traces in issue 1620. Fixes #1620. Fixes #1746. R=iant, r CC=golang-dev https://golang.org/cl/4437075
2011-04-27cgo: handle versioned ELF symbolsRuss Cox
Fixes #1397. R=iant CC=golang-dev https://golang.org/cl/4444064
2011-04-27runtime: allow use of >512 MB on 32-bit platformsRuss Cox
runtime: memory allocated by OS not in usable range runtime: out of memory: cannot allocate 1114112-byte block (2138832896 in use) throw: out of memory runtime.throw+0x40 /Users/rsc/g/go/src/pkg/runtime/runtime.c:102 runtime.throw(0x1fffd, 0x101) runtime.mallocgc+0x2af /Users/rsc/g/go/src/pkg/runtime/malloc.c:60 runtime.mallocgc(0x100004, 0x0, 0x1, 0x1, 0xc093, ...) runtime.mal+0x40 /Users/rsc/g/go/src/pkg/runtime/malloc.c:289 runtime.mal(0x100004, 0x20bc4) runtime.new+0x26 /Users/rsc/g/go/src/pkg/runtime/malloc.c:296 runtime.new(0x100004, 0x8fe84000, 0x20bc4) main.main+0x29 /Users/rsc/x.go:11 main.main() runtime.mainstart+0xf /Users/rsc/g/go/src/pkg/runtime/386/asm.s:93 runtime.mainstart() runtime.goexit /Users/rsc/g/go/src/pkg/runtime/proc.c:178 runtime.goexit() ----- goroutine created by ----- _rt0_386+0xbf /Users/rsc/g/go/src/pkg/runtime/386/asm.s:80 R=iant, r CC=golang-dev https://golang.org/cl/4444073
2011-04-28mime/multipart: add ReadForm and associated typesAndrew Gerrand
R=brad_danga_com, rsc, dfc, r, dchest, bradfitz CC=golang-dev https://golang.org/cl/4439075
2011-04-27tar: use ioutil.DiscardBrad Fitzpatrick
This one didn't come up in previous greps. R=adg CC=golang-dev https://golang.org/cl/4430071
2011-04-27ioutil: add Discard, update tree.Brad Fitzpatrick
This also removes an unnecessary allocation in http/transfer.go R=r, rsc1, r2, adg CC=golang-dev https://golang.org/cl/4426066
2011-04-27http: put a limit on POST sizeBrad Fitzpatrick
R=rsc CC=golang-dev https://golang.org/cl/4432076
2011-04-27http: keep gzip reader inside eofsignalerBrad Fitzpatrick
Fixes #1725 R=rsc CC=golang-dev https://golang.org/cl/4442086
2011-04-27reflect: Fix Copy of arraysGustavo Niemeyer
R=golang-dev, rsc1 CC=golang-dev https://golang.org/cl/4438077
2011-04-27cgi: improve Location response handlingBrad Fitzpatrick
Add local URI path support, which isn't as fringe as I originally thought. (it's supported by Apache) Send an implicit 302 status on redirects (not 200). Fixes #1597 R=rsc, r CC=golang-dev https://golang.org/cl/4442089
2011-04-27runtime: fix mkversion to output valid path separatorsPeter Mundy
In a GOROOT path a backslash is a path separator not an escape character. For example, `C:\go`. Fixes gotest error: version.go:3: unknown escape sequence: g R=rsc CC=golang-dev https://golang.org/cl/4437076
2011-04-27http/fcgi: New packageEvan Shaw
R=golang-dev, bradfitzgo, bradfitzwork, nigeltao, rog CC=golang-dev https://golang.org/cl/4271078
2011-04-27tutorial: replace the forever loops with finite counts in sieve programs.Rob Pike
Fixes #1742. I hope. Also this picks up an update to go_tutorial.html that should already have happened. R=brainman, rsc, peterGo CC=golang-dev https://golang.org/cl/4452050
2011-04-27gopack: preserve safe flag when not adding unsafe objects to archiveRuss Cox
R=dsymonds CC=golang-dev https://golang.org/cl/4436060
2011-04-26doc: mention make version in install.htmlRuss Cox
Fixes #1531. R=adg CC=golang-dev https://golang.org/cl/4442088
2011-04-27goinstall: support GOPATH; building and installing outside the Go treeAndrew Gerrand
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
2011-04-27builder: build multiple targets in parallelAndrew Gerrand
R=rsc, dfc CC=golang-dev https://golang.org/cl/4452047
2011-04-26rpc: run benchmarks over HTTP as well as direct network connections.Rob Pike
R=bradfitzgo CC=golang-dev https://golang.org/cl/4442085
2011-04-26rpc: allow the argument (first arg of method) to be a value rather than a ↵Rob Pike
pointer. Can make the API nicer in some cases. R=rsc, rog, r2 CC=golang-dev https://golang.org/cl/4428064
2011-04-26http: new tests + panic hunting issue 1725Brad Fitzpatrick
No bugs found yet, though. R=rsc, bradfitzwork CC=golang-dev https://golang.org/cl/4436058
2011-04-26crypto/x509: memorize chain building.Adam Langley
I ran the new verification code against a large number of certificates with a huge (>1000) number of intermediates. I had previously convinced myself that a cycle in the certificate graph implied a cycle in the hash graph (and thus, a contradiction). This is bogus because the signatures don't cover each other. Secondly, I managed to drive the verification into a time explosion with a fully connected graph of certificates. The code would try to walk the factorial number of paths. This change switches the CertPool to dealing with indexes of certificates rather than pointers: this makes equality easy. (I didn't want to compare pointers because a reasonable gc could move objects around over time.) Secondly, verification now memorizes the chains from a given certificate. This is dynamic programming for the lazy, but there's a solid reason behind it: dynamic programming would ignore the Issuer hints that we can exploit by walking up the chain rather than down. R=bradfitzgo CC=golang-dev https://golang.org/cl/4439070
2011-04-26syscall: Mlock, Munlock, Mlockall, Munlockall on Linux.Albert Strasheim
R=rsc, bradfitzgo CC=golang-dev https://golang.org/cl/4433070
2011-04-26runtime: more graceful out-of-memory crashRuss Cox
Used to fault trying to access l->list->next when l->list == nil after MCentral_AllocList. Now prints runtime: out of memory: no room in arena for 65536-byte allocation (536870912 in use) throw: out of memory followed by stack trace. Fixes #1650. R=r, dfc CC=golang-dev https://golang.org/cl/4446062
2011-04-26os: fix race in ReadAt/WriteAt on WindowsAlex Brainman
R=bradfitzgo, rsc, peterGo CC=golang-dev https://golang.org/cl/4441051
2011-04-268l: do not emit empty dwarf pe sectionsAlex Brainman
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
2011-04-25http: make Client redirect policy configurableBrad Fitzpatrick
Work on issue 155 R=rsc, bradfitzwork CC=golang-dev https://golang.org/cl/4435071
2011-04-26gc: fix order of operations for f() < g().Russ Cox
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
2011-04-26all-qemu.bash: remove DISABLE_NET_TESTSRuss Cox
It's no longer used. R=adg CC=golang-dev https://golang.org/cl/4426061
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