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Cherry Mui 4dbad79510 runtime: call unlockOSThread directly in Windows syscall functions 
Windows syscall functions (e.g. syscall.Syscall9) are defined as
cgo_unsafe_args (because it takes the address of one argument and
use that to access all arguments) which makes them ABI0. In some
case we may need ABI wrappers for them. Because those functions
have a large number of arguments, the wrapper can take a
non-trivial amount of stack frame, causing nosplit overflow when
inlining is disabled. The overflow call chain involves
deferreturn.

This CL changes a deferred call to unlockOSThread to a direct
call. If the syscall functions panics, it is likely a fatal error
anyway.

Fixes #45698.

Change-Id: I280be826644de1205f9c8f5efaa4ec5e1b4eebc1
Reviewed-on: https://go-review.googlesource.com/c/go/+/316650
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
 		2021-05-06 20:30:00 +00:00
.github .github: add link to questions in ISSUE_TEMPLATE 2020-01-06 17:05:31 +00:00
api text/template/parse: rename DeferFuncCheck to SkipFuncCheck 2021-05-06 13:39:37 +00:00
doc crypto/tls: enforce ALPN overlap when negotiated on both sides 2021-05-06 18:57:43 +00:00
lib/time lib/time, time/tzdata: update tzdata to 2021a 2021-01-25 16:08:46 +00:00
misc runtime: rename walltime1 to walltime 2021-04-29 14:15:04 +00:00
src runtime: call unlockOSThread directly in Windows syscall functions 2021-05-06 20:30:00 +00:00
test cmd/compile: set unsayable "names" for regabi testing triggers 2021-05-06 11:58:39 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: add Weixie Cui (individual CLA) 2021-04-30 16:27:50 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS CONTRIBUTORS: change my name 2021-05-06 16:28:56 +00:00
LICENSE
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README.md README: pull gopher image from website 2021-02-16 18:25:10 +00:00
SECURITY.md SECURITY.md: update go versions 2019-09-26 15:34:57 +00:00
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00

README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

Gopher image Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.

Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.

Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

Download and Install

Binary Distributions

Official binary distributions are available at https://golang.org/dl/.

After downloading a binary release, visit https://golang.org/doc/install for installation instructions.

Install From Source

If a binary distribution is not available for your combination of operating system and architecture, visit https://golang.org/doc/install/source for source installation instructions.

Contributing

Go is the work of thousands of contributors. We appreciate your help!

To contribute, please read the contribution guidelines at https://golang.org/doc/contribute.html.

Note that the Go project uses the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.