go, branch go1.4.1

[release-branch.go1.4] go1.4.1

2015-01-15T21:04:23Z

Change-Id: If275a5caa07cfd16b7052ad50709e1d0f1258223 Reviewed-on: https://go-review.googlesource.com/2856 Reviewed-by: Rob Pike

[release-branch.go1.4] doc: document Go 1.4.1

2015-01-15T04:50:52Z

Change-Id: I4e9737497f4995657c46e52e0722d921499f8d17 Reviewed-on: https://go-review.googlesource.com/2854 Reviewed-by: Rob Pike (cherry picked from commit 7785be8f2227df881e7ab3a4e81a2fc69a165cf8) Reviewed-on: https://go-review.googlesource.com/2855

[release-branch.go1.4] doc: update source install instruction to use tag 'go1.4.1'

2015-01-15T03:55:30Z

Change-Id: I12e531fc0d92d3b6fc7ec2bbd8c029f63f55fbe1 Reviewed-on: https://go-review.googlesource.com/2798 Reviewed-by: Russ Cox

[release-branch.go1.4] syscall: fix the deprecated way of parsing routing message on openbsd

2015-01-14T23:54:43Z

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 (cherry picked from commit 13e16b39fc269fcba3383bd6c133da3e0e0345e9) Reviewed-on: https://go-review.googlesource.com/2826 Reviewed-by: Brad Fitzpatrick

[release-branch.go1.4] runtime: fix nacl build, hashmap overflow field offset was incorrect.

2015-01-14T20:44:03Z

Change-Id: Ieb305b2a4d4ef28d70a8b8ece703f495c5af0529 Reviewed-on: https://go-review.googlesource.com/2051 Reviewed-by: Keith Randall (cherry picked from commit c6669e7af58cb9406226c038b1cadef6e754dc74) Reviewed-on: https://go-review.googlesource.com/2820 Reviewed-by: Brad Fitzpatrick

[release-branch.go1.4] cmd/go: adjust error for custom import checkout mismatch

2015-01-14T20:30:19Z

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 Reviewed-by: Rob Pike (cherry picked from commit b8d67596f67ea13525e752a02f45c9d9f346472d) Reviewed-on: https://go-review.googlesource.com/2813 Reviewed-by: Brad Fitzpatrick

[release-branch.go1.4] runtime: fix deadlock in runtime.Stack

2015-01-14T06:16:34Z

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 (cherry picked from commit 50bc3d5bbc6710663c082aa72c8ba4f9ee515ab3) Reviewed-on: https://go-review.googlesource.com/2807 Reviewed-by: Andrew Gerrand

[release-branch.go1.4] runtime: fix SIGPROF change

2015-01-14T06:14:09Z

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 (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 (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 (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 (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 (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 (cherry picked from commit 1ebfb082a7a5cc31efd572fd88549048a82a5c1c) --- Change-Id: Ifee9667ca90eda2b074817c319b1b7c66d4f741d Reviewed-on: https://go-review.googlesource.com/2805 Reviewed-by: Minux Ma Reviewed-by: Andrew Gerrand

[release-branch.go1.4] all: copy master .gitattributes and .gitignore

2015-01-14T06:13:56Z

Change-Id: I10e60fb6bf2cf3daa2bc1184df7ded0a712a1905 Reviewed-on: https://go-review.googlesource.com/2806 Reviewed-by: Andrew Gerrand

[release-branch.go1.4] cmd/ld: put .bss from external objects into real .bss section

2015-01-14T05:42:14Z

Fixes #9359. Change-Id: Iba62935b5a14de23d914f433a09a40417d7e88ed Signed-off-by: Shenghou Ma Reviewed-on: https://go-review.googlesource.com/1889 Reviewed-by: Russ Cox Reviewed-by: Ian Lance Taylor (cherry picked from commit 1c0c611fc2a7e1ce7eb39626ca7b120b62aac557) Reviewed-on: https://go-review.googlesource.com/2802 Reviewed-by: Andrew Gerrand