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2015-01-15[release-branch.go1.4] go1.4.1go1.4.1Andrew Gerrand
Change-Id: If275a5caa07cfd16b7052ad50709e1d0f1258223 Reviewed-on: https://go-review.googlesource.com/2856 Reviewed-by: Rob Pike <r@golang.org>
2015-01-15[release-branch.go1.4] doc: document Go 1.4.1Andrew Gerrand
Change-Id: I4e9737497f4995657c46e52e0722d921499f8d17 Reviewed-on: https://go-review.googlesource.com/2854 Reviewed-by: Rob Pike <r@golang.org> (cherry picked from commit 7785be8f2227df881e7ab3a4e81a2fc69a165cf8) Reviewed-on: https://go-review.googlesource.com/2855
2015-01-15[release-branch.go1.4] doc: update source install instruction to use tag ↵Andrew Gerrand
'go1.4.1' Change-Id: I12e531fc0d92d3b6fc7ec2bbd8c029f63f55fbe1 Reviewed-on: https://go-review.googlesource.com/2798 Reviewed-by: Russ Cox <rsc@golang.org>
2015-01-14[release-branch.go1.4] syscall: fix the deprecated way of parsing routing ↵Mikio Hara
message on openbsd OpenBSD 5.5 changed its kernel ABI and OpenBSD 5.6 enabled it. This CL works on both 5.5 and 5.6. Fixes #9102. Change-Id: I4a295be9ab8acbc99e550d8cb7e8f8dacf3a03c5 Reviewed-on: https://go-review.googlesource.com/1932 Reviewed-by: Ian Lance Taylor <iant@golang.org> (cherry picked from commit 13e16b39fc269fcba3383bd6c133da3e0e0345e9) Reviewed-on: https://go-review.googlesource.com/2826 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-01-14[release-branch.go1.4] runtime: fix nacl build, hashmap overflow field ↵Keith Randall
offset was incorrect. Change-Id: Ieb305b2a4d4ef28d70a8b8ece703f495c5af0529 Reviewed-on: https://go-review.googlesource.com/2051 Reviewed-by: Keith Randall <khr@golang.org> (cherry picked from commit c6669e7af58cb9406226c038b1cadef6e754dc74) Reviewed-on: https://go-review.googlesource.com/2820 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-01-14[release-branch.go1.4] cmd/go: adjust error for custom import checkout mismatchRuss Cox
Before: ... imports golang.org/x/net/context: /Users/rsc/g/src/golang.org/x/net is from https://code.google.com/p/go.net, should be from https://go.googlesource.com/net After: ... imports golang.org/x/net/context: golang.org/x/net is a custom import path for https://go.googlesource.com/net, but /Users/rsc/g/src/golang.org/x/net is checked out from https://code.google.com/p/go.net Change-Id: I93c35b85f955c7de684f71fbd4baecc717405318 Reviewed-on: https://go-review.googlesource.com/2808 Reviewed-by: Andrew Gerrand <adg@golang.org> Reviewed-by: Rob Pike <r@golang.org> (cherry picked from commit b8d67596f67ea13525e752a02f45c9d9f346472d) Reviewed-on: https://go-review.googlesource.com/2813 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-01-14[release-branch.go1.4] runtime: fix deadlock in runtime.StackKeith Randall
It shouldn't semacquire() inside an acquirem(), the runtime thinks that means deadlock. It actually isn't a deadlock, but it looks like it because acquirem() does m.locks++. Candidate for inclusion in 1.4.1. runtime.Stack with all=true is pretty unuseable in GOMAXPROCS>1 environment. fixes #9321 Change-Id: Iac6b664217d24763b9878c20e49229a1ecffc805 Reviewed-on: https://go-review.googlesource.com/1600 Reviewed-by: Dmitry Vyukov <dvyukov@google.com> (cherry picked from commit 50bc3d5bbc6710663c082aa72c8ba4f9ee515ab3) Reviewed-on: https://go-review.googlesource.com/2807 Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-01-14[release-branch.go1.4] runtime: fix SIGPROF changeRuss Cox
CL 2789 backported a change that required a barrage of followup CLs. This CL backports all the followup CLs together. There are manual edits to os_plan9.go and syscall_windows.go to take the place of edits to defs_windows_{amd64,386}.go and os2_plan9.go in the original. Those files do not exist in the release branch, but the definition being added must go somewhere. Original change descriptions below. --- runtime/cgo: initialize our pthread_create wrapper earlier on openbsd This is a genuine bug exposed by our test for issue 9456: our wrapper for pthread_create is not initialized until we initialize cgo itself, but it is possible that a static constructor could call pthread_create, and in that case, it will be calling a nil function pointer. Fix that by also initializing the sys_pthread_create function pointer inside our pthread_create wrapper function, and use a pthread_once to make sure it is only initialized once. Fix build for openbsd. Change-Id: Ica4da2c21fcaec186fdd3379128ef46f0e767ed7 Reviewed-on: https://go-review.googlesource.com/2232 Reviewed-by: David Crawshaw <crawshaw@golang.org> (cherry picked from commit 77cd6197d7561ab7ccbf5d892efb6f97d929546a) --- runtime: provide a dummy value of _SIGPROF on plan9 and windows Fixes build on plan9 and windows. Change-Id: Ic9b02c641ab84e4f6d8149de71b9eb495e3343b2 Reviewed-on: https://go-review.googlesource.com/2233 Reviewed-by: Alex Brainman <alex.brainman@gmail.com> (cherry picked from commit 1f282385579fc404f1246fd7ffa8b4e517401d19) --- runtime/cgo: remove unused variable I missed this one in golang.org/cl/2232 and only tested the patch on openbsd/amd64. Change-Id: I4ff437ae0bfc61c989896c01904b6d33f9bdf0ec Reviewed-on: https://go-review.googlesource.com/2234 Reviewed-by: Minux Ma <minux@golang.org> (cherry picked from commit 0b2a74e89cf940e1c4cd91785ff3d744684edc49) --- runtime: skip TestCgoExternalThreadSIGPROF on OS X 10.6 The test program requires static constructor, which in turn needs external linking to work, but external linking never works on 10.6. This should fix the darwin-{386,amd64} builders. Change-Id: I714fdd3e35f9a7e5f5659cf26367feec9412444f Reviewed-on: https://go-review.googlesource.com/2235 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> (cherry picked from commit 2cbe27a27202dca5a643b75c79e25d4cccc3ae67) --- runtime: fix TestCgoExternalThreadSIGPROF again Shell out to `uname -r` this time, so that the test will compile even if the platform doesn't have syscall.Sysctl. Change-Id: I3a19ab5d820bdb94586a97f4507b3837d7040525 Reviewed-on: https://go-review.googlesource.com/2271 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> (cherry picked from commit 865e5e98b685eb3a7888f5263021049c0694d16f) --- runtime: remove unnecessary GOOS switch Change-Id: I8f518e273c02110042b08f7c50c3d38a648c8b6e Reviewed-on: https://go-review.googlesource.com/2281 Reviewed-by: Minux Ma <minux@golang.org> (cherry picked from commit 1ebfb082a7a5cc31efd572fd88549048a82a5c1c) --- Change-Id: Ifee9667ca90eda2b074817c319b1b7c66d4f741d Reviewed-on: https://go-review.googlesource.com/2805 Reviewed-by: Minux Ma <minux@golang.org> Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-01-14[release-branch.go1.4] all: copy master .gitattributes and .gitignoreRuss Cox
Change-Id: I10e60fb6bf2cf3daa2bc1184df7ded0a712a1905 Reviewed-on: https://go-review.googlesource.com/2806 Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-01-14[release-branch.go1.4] cmd/ld: put .bss from external objects into real .bss ↵Shenghou Ma
section Fixes #9359. Change-Id: Iba62935b5a14de23d914f433a09a40417d7e88ed Signed-off-by: Shenghou Ma <minux@golang.org> Reviewed-on: https://go-review.googlesource.com/1889 Reviewed-by: Russ Cox <rsc@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> (cherry picked from commit 1c0c611fc2a7e1ce7eb39626ca7b120b62aac557) Reviewed-on: https://go-review.googlesource.com/2802 Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-01-14[release-branch.go1.4] runtime: hashmap: move overflow pointer to end of bucketKeith Randall
Pointers to zero-sized values may end up pointing to the next object in memory, and possibly off the end of a span. This can cause memory leaks and/or confuse the garbage collector. By putting the overflow pointer at the end of the bucket, we make sure that pointers to any zero-sized keys or values don't accidentally point to the next object in memory. fixes #9384 Change-Id: I5d434df176984cb0210b4d0195dd106d6eb28f73 Reviewed-on: https://go-review.googlesource.com/1869 Reviewed-by: Russ Cox <rsc@golang.org> (cherry picked from commit fbc56cf05015899aba236d5a68096a770de3ad0a) Reviewed-on: https://go-review.googlesource.com/2801 Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-01-14[release-branch.go1.4] reflect: add kindNoPointers if a function layout has ↵Keith Randall
no pointers. malloc checks kindNoPointers and if it is not set and the object is one pointer in size, it assumes it contains a pointer. So we must set kindNoPointers correctly; it isn't just a hint. Fixes #9425 Change-Id: Ia43da23cc3298d6e3d6dbdf66d32e9678f0aedcf Reviewed-on: https://go-review.googlesource.com/2055 Reviewed-by: Russ Cox <rsc@golang.org> (cherry picked from commit d11f41118116e0b5c2fb3b3296323d888dff2d6e) Reviewed-on: https://go-review.googlesource.com/2800 Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-01-14[release-branch.go1.4] runtime: ignore SIGPROF to foreign threads before ↵Shenghou Ma
cgocallback is fully initialized Some libraries, for example, OpenBLAS, create work threads in a global constructor. If we're doing cpu profiling, it's possible that SIGPROF might come to some of the worker threads before we make our first cgo call. Cgocallback used to terminate the process when that happens, but it's better to miss a couple profiling signals than to abort in this case. Fixes #9456. Change-Id: I112b8e1a6e10e6cc8ac695a4b518c0f577309b6b Reviewed-on: https://go-review.googlesource.com/2141 Reviewed-by: Ian Lance Taylor <iant@golang.org> (cherry picked from commit 5da9c8cd0a0427d1771b3a9a6d8d931430ce50dd) Reviewed-on: https://go-review.googlesource.com/2789 Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-01-14[release-branch.go1.4] doc: copy contribute.html and install-source.html ↵Russ Cox
from master This incorporates the various git-related updates that have happened since the Go 1.4 release. Since Go 1.4.1 will be issued from Git, it is appropriate to replace the Mercurial instructions with Git instructions. Change-Id: Idec041002c7f325c4eee6f25c50423b088b11468 Reviewed-on: https://go-review.googlesource.com/2788 Reviewed-by: Andrew Gerrand <adg@golang.org>
2014-12-12cmd/dist: convert dist from Hg to Git.David Symonds
Change-Id: Ic25d46df6a79c4a18ed3f0a7e900591a115e48e3 Reviewed-on: https://go-review.googlesource.com/1403 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2014-12-11go1.4go1.4Andrew Gerrand
LGTM=bradfitz, minux, dsymonds R=rsc, bradfitz, iant, dsymonds, minux CC=golang-codereviews https://golang.org/cl/188920043
2014-12-11doc: tweak Go 1.4 release notesAndrew Gerrand
LGTM=dave, dsymonds R=golang-codereviews, dave, dsymonds CC=golang-codereviews https://golang.org/cl/184350043
2014-12-11doc: document go1.4Andrew Gerrand
LGTM=bradfitz R=rsc, bradfitz CC=golang-codereviews https://golang.org/cl/189810043
2014-12-11doc: remove TODO from go1.4 release notesAndrew Gerrand
LGTM=bradfitz R=iant, rsc, bradfitz CC=golang-codereviews https://golang.org/cl/191750043
2014-12-10misc/makerelease: handle git sub-repositoriesAndrew Gerrand
Also: checkout sub-repos from Mercurial manually instead of using "go get". (for the 1.4 release) LGTM=rsc R=rsc CC=golang-codereviews https://golang.org/cl/190720043
2014-12-10[release-branch.go1.4] api: create go1.4.txtRuss Cox
I read through and vetted these but others should look too. LGTM=bradfitz, adg R=r, minux, bradfitz, adg CC=adg, golang-codereviews, gri, iant https://golang.org/cl/182560043
2014-12-10[release-branch.go1.4] [release-branch.go1.4] doc: scrub references to ↵Andrew Gerrand
code.google.com These are the references that affect current Go users. I left intact references in older release notes; we can figure out what to do with them later. LGTM=rsc R=rsc CC=golang-codereviews https://golang.org/cl/186140043
2014-12-10[release-branch.go1.4] [release-branch.go1.4] doc: update contribution ↵Andrew Gerrand
guidelines LGTM=minux, adg, rsc R=rsc, r, dsymonds, minux, bradfitz, adg, dave, iant CC=golang-codereviews https://golang.org/cl/185190043
2014-12-10[release-branch.go1.4] [release-branch.go1.4] misc/cgo/test: skip test8694 ↵Andrew Gerrand
on ARM. ««« CL 185130043 / 586738173884 misc/cgo/test: skip test8694 on ARM. LGTM=dave, bradfitz, rsc R=golang-codereviews, dave, bradfitz, rsc CC=golang-codereviews https://golang.org/cl/185130043 »»» LGTM=minux R=golang-codereviews, minux, bradfitz CC=golang-codereviews https://golang.org/cl/188870043
2014-12-08[release-branch.go1.4] cmd/go: document import path checkingRuss Cox
LGTM=adg R=adg CC=golang-codereviews https://golang.org/cl/189760043
2014-12-05[release-branch.go1.4] [release-branch.go1.4] encoding/xml: remove ↵Russ Cox
SyntaxError.Byte ««« CL 182580043 / 2d1ab17a670a encoding/xml: remove SyntaxError.Byte It is unused. It was introduced in the CL that added InputOffset. I suspect it was an editing mistake. LGTM=bradfitz R=bradfitz CC=golang-codereviews https://golang.org/cl/182580043 »»» TBR=bradfitz CC=golang-codereviews https://golang.org/cl/180630043
2014-12-05[release-branch.go1.4] codereview: add release-branch.go1.4 prefix, like for ↵Russ Cox
dev branches TBR=bradfitz R=bradfitz CC=golang-codereviews https://golang.org/cl/178710043
2014-12-05[release-branch.go1.4] cmd/api: make API check fail for undeclared API in ↵Russ Cox
release branch We forgot to do the usual API review. Make that not possible in the future. I'll pull this change over to the main branch too, but it's more important (and only testable) here. LGTM=bradfitz R=bradfitz CC=golang-codereviews https://golang.org/cl/185050043
2014-12-05codereview: release-branch.go1.4 is now a work branchRuss Cox
(That is, changes can originate in the branch. The main branch has diverged enough that this may be necessary.) LGTM=bradfitz R=adg, bradfitz CC=golang-codereviews https://golang.org/cl/187810043
2014-12-04[release-branch.go1.4] cmd/go: fix buildRuss Cox
««« CL 182480043 / 8d42099cdc23 cmd/go: fix build The new semantics of split require the newline be present. The test was stale. LGTM=adg R=golang-codereviews, adg CC=golang-codereviews https://golang.org/cl/182480043 »»» TBR=r CC=golang-codereviews https://golang.org/cl/178690043
2014-12-04[release-branch.go1.4] cmd/go: avoid use of bufio.Scanner in generateRuss Cox
««« CL 182970043 / 573a7b5178c4 cmd/go: avoid use of bufio.Scanner in generate Scanner can't handle stupid long lines and there are reports of stupid long lines in production. Note the issue isn't long "//go:generate" lines, but any long line in any Go source file. To be fair, if you're going to have a stupid long line it's not a bad bet you'll want to run it through go generate, because it's some embeddable asset that has been machine generated. (One could ask why that generation process didn't add a newline or two, but we should cope anyway.) Rewrite the file scanner in "go generate" so it can handle arbitrarily long lines, and only stores in memory those lines that start "//go:generate". Also: Adjust the documentation to make clear that it does not parse the file. Fixes #9143. Fixes #9196. LGTM=rsc, dominik.honnef R=rsc, cespare, minux, dominik.honnef CC=golang-codereviews https://golang.org/cl/182970043 »»» TBR=r CC=golang-codereviews https://golang.org/cl/183060044
2014-12-04[release-branch.go1.4] cmd/pprof/internal/commands: add command to open ↵Russ Cox
browser on windows ««« CL 180380043 / d56c648b069f cmd/pprof/internal/commands: add command to open browser on windows While we're at there, also add a message to prompt the user to install Graphviz if "dot" command is not found. Fixes #9178. LGTM=adg, alex.brainman, cookieo9, rsc R=rsc, adg, bradfitz, alex.brainman, cookieo9, smyrman CC=golang-codereviews https://golang.org/cl/180380043 »»» TBR=minux CC=golang-codereviews https://golang.org/cl/186760043
2014-12-04[release-branch.go1.4] lib/time: update to ICANN time zone database 2014jAndrew Gerrand
««« CL 178660043 / ac865d86fc2a lib/time: update to ICANN time zone database 2014j Fixes #9189. LGTM=dsymonds R=golang-codereviews, dsymonds CC=golang-codereviews https://golang.org/cl/178660043 »»» LGTM=minux, dsymonds R=dsymonds, r, minux CC=golang-codereviews https://golang.org/cl/182460043
2014-12-03[release-branch.go1.4] cmd/pprof: fix symbol resolution for remote profilesRuss Cox
««« CL 183080043 / b663cc7e6c15 cmd/pprof: fix symbol resolution for remote profiles Fixes #9199. LGTM=iant R=golang-codereviews, iant CC=austin, golang-codereviews, minux https://golang.org/cl/183080043 »»» TBR=iant CC=golang-codereviews https://golang.org/cl/176680043
2014-12-03[release-branch.go1.4] cmd/go: regenerate doc.goAndrew Gerrand
««« CL 183000043 / 871468f5ceaf cmd/go: regenerate doc.go Move change from CL 170770043 to correct file and regenerate docs for changes from CL 164120043. LGTM=adg R=golang-codereviews, adg, bradfitz CC=golang-codereviews https://golang.org/cl/183000043 »»» LGTM=minux R=bradfitz, minux CC=golang-codereviews https://golang.org/cl/181490043
2014-12-02go1.4rc2go1.4rc2Andrew Gerrand
LGTM=rsc R=rsc CC=golang-codereviews https://golang.org/cl/179700043
2014-12-01[release-branch.go1.4] runtime: fix hang in GC due to shrinkstack vs netpoll ↵Russ Cox
race ««« CL 179680043 / 752cd9199639 runtime: fix hang in GC due to shrinkstack vs netpoll race During garbage collection, after scanning a stack, we think about shrinking it to reclaim some memory. The shrinking code (called while the world is stopped) checked that the status was Gwaiting or Grunnable and then changed the state to Gcopystack, to essentially lock the stack so that no other GC thread is scanning it. The same locking happens for stack growth (and is more necessary there). oldstatus = runtime·readgstatus(gp); oldstatus &= ~Gscan; if(oldstatus == Gwaiting || oldstatus == Grunnable) runtime·casgstatus(gp, oldstatus, Gcopystack); // oldstatus is Gwaiting or Grunnable else runtime·throw("copystack: bad status, not Gwaiting or Grunnable"); Unfortunately, "stop the world" doesn't stop everything. It stops all normal goroutine execution, but the network polling thread is still blocked in epoll and may wake up. If it does, and it chooses a goroutine to mark runnable, and that goroutine is the one whose stack is shrinking, then it can happen that between readgstatus and casgstatus, the status changes from Gwaiting to Grunnable. casgstatus assumes that if the status is not what is expected, it is a transient change (like from Gwaiting to Gscanwaiting and back, or like from Gwaiting to Gcopystack and back), and it loops until the status has been restored to the expected value. In this case, the status has changed semi-permanently from Gwaiting to Grunnable - it won't change again until the GC is done and the world can continue, but the GC is waiting for the status to change back. This wedges the program. To fix, call a special variant of casgstatus that accepts either Gwaiting or Grunnable as valid statuses. Without the fix bug with the extra check+throw in casgstatus, the program below dies in a few seconds (2-10) with GOMAXPROCS=8 on a 2012 Retina MacBook Pro. With the fix, it runs for minutes and minutes. package main import ( "io" "log" "net" "runtime" ) func main() { const N = 100 for i := 0; i < N; i++ { l, err := net.Listen("tcp", "127.0.0.1:0") if err != nil { log.Fatal(err) } ch := make(chan net.Conn, 1) go func() { var err error c1, err := net.Dial("tcp", l.Addr().String()) if err != nil { log.Fatal(err) } ch <- c1 }() c2, err := l.Accept() if err != nil { log.Fatal(err) } c1 := <-ch l.Close() go netguy(c1, c2) go netguy(c2, c1) c1.Write(make([]byte, 100)) } for { runtime.GC() } } func netguy(r, w net.Conn) { buf := make([]byte, 100) for { bigstack(1000) _, err := io.ReadFull(r, buf) if err != nil { log.Fatal(err) } w.Write(buf) } } var g int func bigstack(n int) { var buf [100]byte if n > 0 { bigstack(n - 1) } g = int(buf[0]) + int(buf[99]) } Fixes #9186. LGTM=rlh R=austin, rlh CC=dvyukov, golang-codereviews, iant, khr, r https://golang.org/cl/179680043 »»» TBR=rlh CC=golang-codereviews https://golang.org/cl/184030043
2014-12-01[release-branch.go1.4] reflect: Fix reflect.funcLayout. The GC bitmap has ↵Russ Cox
two bits per ««« CL 182160043 / 321d04dea9d6 reflect: Fix reflect.funcLayout. The GC bitmap has two bits per pointer, not one. Fixes #9179 LGTM=iant, rsc R=golang-codereviews, iant, rsc CC=golang-codereviews https://golang.org/cl/182160043 »»» TBR=khr CC=golang-codereviews https://golang.org/cl/180440044
2014-11-26[release-branch.go1.4] doc: tidy up "Projects" page; add Go 1.4Andrew Gerrand
««« CL 182750043 / ffe33f1f1f17 doc: tidy up "Projects" page; add Go 1.4 LGTM=r R=r CC=golang-codereviews https://golang.org/cl/182750043 »»» TBR=r CC=golang-codereviews https://golang.org/cl/176350043
2014-11-24[release-branch.go1.4] go/build: build $GOOS_test.go alwaysRuss Cox
««« CL 176290043 / 8025b7d1e6c9 go/build: build $GOOS_test.go always We decided to build $GOOS.go always but forgot to test $GOOS_test.go. Fixes #9159. LGTM=r R=r CC=golang-codereviews https://golang.org/cl/176290043 »»» LGTM=r R=r CC=golang-codereviews https://golang.org/cl/182740043
2014-11-23[release-branch.go1.4] image/jpeg: handle Read returning n > 0, err != nil ↵Russ Cox
in d.fill ««« CL 178120043 / 95f5614b4648 image/jpeg: handle Read returning n > 0, err != nil in d.fill Fixes #9127. LGTM=r R=bradfitz, r CC=golang-codereviews, nigeltao https://golang.org/cl/178120043 »»» TBR=r CC=golang-codereviews https://golang.org/cl/181870043
2014-11-22[release-branch.go1.4] cmd/go: fix running pprof on windows.Russ Cox
««« CL 176170043 / 61bbf19823d5 cmd/go: fix running pprof on windows. Fixes #9149. LGTM=alex.brainman, rsc R=rsc, dave, alex.brainman CC=golang-codereviews https://golang.org/cl/176170043 »»» TBR=minux CC=golang-codereviews https://golang.org/cl/175550043
2014-11-20[release-branch.go1.4] runtime: fix atomic operations on non-heap addressesRuss Cox
««« CL 179030043 / e4ab8f908aac runtime: fix atomic operations on non-heap addresses Race detector runtime does not tolerate operations on addresses that was not previously declared with __tsan_map_shadow (namely, data, bss and heap). The corresponding address checks for atomic operations were removed in https://golang.org/cl/111310044 Restore these checks. It's tricker than just not calling into race runtime, because it is the race runtime that makes the atomic operations themselves (if we do not call into race runtime we skip the atomic operation itself as well). So instead we call __tsan_go_ignore_sync_start/end around the atomic operation. This forces race runtime to skip all other processing except than doing the atomic operation itself. Fixes #9136. LGTM=rsc R=rsc CC=golang-codereviews https://golang.org/cl/179030043 »»» TBR=dvyukov CC=golang-codereviews https://golang.org/cl/180030043
2014-11-19[release-branch.go1.4] build: disable race external linking test on OS X ↵Russ Cox
10.6 and earlier ««« CL 176070043 / 500cb52e08e6 build: disable race external linking test on OS X 10.6 and earlier External linking doesn't work there at all. LGTM=bradfitz R=adg, bradfitz CC=golang-codereviews https://golang.org/cl/176070043 »»» LGTM=bradfitz, adg R=adg, bradfitz CC=golang-codereviews https://golang.org/cl/175400043
2014-11-19[release-branch.go1.4] runtime: remove assumption that noptrdata data bss ↵Russ Cox
noptrbss are ordered and contiguous ««« CL 179980043 / d71cc7e8a0e0 runtime: remove assumption that noptrdata data bss noptrbss are ordered and contiguous The assumption can be violated by external linkers reordering them or inserting non-Go sections in between them. I looked briefly at trying to write out the _go_.o in external linking mode in a way that forced the ordering, but no matter what there's no way to force Go's data and Go's bss to be next to each other. If there is any data or bss from non-Go objects, it's very likely to get stuck in between them. Instead, rewrite the two places we know about that make the assumption. I grepped for noptrdata to look for more and didn't find any. The added race test (os/exec in external linking mode) fails without the changes in the runtime. It crashes with an invalid pointer dereference. Fixes #9133. LGTM=dneil R=dneil CC=dvyukov, golang-codereviews, iant https://golang.org/cl/179980043 »»» LGTM=dneil R=dneil CC=golang-codereviews https://golang.org/cl/173510043
2014-11-19[release-branch.go1.4] undo CL 131750044 / 2d6d44ceb80eRuss Cox
««« CL 174450043 / 699cc091a16d undo CL 131750044 / 2d6d44ceb80e Breaks reading from stdin in parent after exec with SysProcAttr{Setpgid: true}. package main import ( "fmt" "os" "os/exec" "syscall" ) func main() { cmd := exec.Command("true") cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true} cmd.Run() fmt.Printf("Hit enter:") os.Stdin.Read(make([]byte, 100)) fmt.Printf("Bye\n") } In go1.3, I type enter at the prompt and the program exits. With the CL being rolled back, the program wedges at the prompt. ««« original CL description syscall: SysProcAttr job control changes Making the child's process group the foreground process group and placing the child in a specific process group involves co-ordination between the parent and child that must be done post-fork but pre-exec. LGTM=iant R=golang-codereviews, gobot, iant, mikioh.mikioh CC=golang-codereviews https://golang.org/cl/131750044 »»» LGTM=minux, dneil R=dneil, minux CC=golang-codereviews, iant, michael.p.macinnis https://golang.org/cl/174450043 »»» LGTM=minux R=dneil, minux CC=golang-codereviews https://golang.org/cl/179970043
2014-11-19[release-branch.go1.4] doc/go1.4.html: rewrite first sentence to make it clearerAndrew Gerrand
««« CL 178910043 / 3916b070c5f3 doc/go1.4.html: rewrite first sentence to make it clearer The grammar was atrocious, probably the victim of an editing error. LGTM=bradfitz R=bradfitz CC=golang-codereviews https://golang.org/cl/178910043 »»» LGTM=r R=r CC=golang-codereviews https://golang.org/cl/175310043
2014-11-17[release-branch.go1.4] remove cmd/link from nacl test zipgo1.4rc1Andrew Gerrand
LGTM=dsymonds R=rsc, dsymonds CC=golang-codereviews https://golang.org/cl/179830043
2014-11-17[release-branch.go1.4] remove cmd/linkAndrew Gerrand
LGTM=dsymonds, minux R=rsc, dsymonds, minux CC=golang-codereviews https://golang.org/cl/176910043
2014-11-17[release-branch.go1.4] debug/goobj: move to cmd/internal/goobjAndrew Gerrand
««« CL 174250043 / c16349455e05 debug/goobj: move to cmd/internal/goobj debug/goobj is not ready to be published but it is needed for the various binary-reading commands. Move to cmd/internal/goobj. (The Go 1.3 release branch deleted it, but that's not an option anymore due to the command dependencies. The API is still not vetted nor terribly well designed.) LGTM=adg, dsymonds R=adg, dsymonds CC=golang-codereviews https://golang.org/cl/174250043 »»» LGTM=rsc R=rsc CC=golang-codereviews https://golang.org/cl/177890043