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Austin Clements cb14e673ec [dev.typeparams] runtime: don't keep stack uintptr across potential stack move 
Currently, deferproc stores the caller SP as a uintptr in a local
variable across a call to newdefer, but newdefer could grow the stack
and invalidate this saved SP, causing deferproc to store a stale SP in
the defer record. This would lead to us later failing to match that
defer to its calling frame, and we wouldn't run the defer at the right
time (or possibly at all).

It turns out this isn't crashing horribly right now only because the
compiler happens to only materialize the result of getcallersp when
this variable is used, *after* the call to newdefer. But this is
clearly on thin ice, so this CL moves the getcallersp() to the place
where we actually need the result.

Change-Id: Iae8ab226e03e4482f16acfb965885f0bd83a13b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/337649
Trust: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2021-07-27 15:44:31 +00:00
.github .github: add link to questions in ISSUE_TEMPLATE 2020-01-06 17:05:31 +00:00
api reflect: add Value.CanConvert 2021-07-21 19:25:48 +00:00
doc doc: clarify non-nil zero length slice to array pointer conversion 2021-07-26 17:47:47 +00:00
lib/time lib/time, time/tzdata: update tzdata to 2021a 2021-01-25 16:08:46 +00:00
misc [dev.typeparams] all: add GOEXPERIMENT=unified knob 2021-06-17 09:09:02 +00:00
src [dev.typeparams] runtime: don't keep stack uintptr across potential stack move 2021-07-27 15:44:31 +00:00
test [dev.typeparams] cmd/compile/internal/types2: embedded type cannot be a (pointer to) a type parameter 2021-07-26 20:53:17 +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: update name 2021-06-01 17:08:12 +00:00
codereview.cfg [dev.typeparams] all: update parent repository 2021-02-18 22:34:52 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS A+C: update name 2021-06-01 17:08:12 +00:00
LICENSE
PATENTS
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

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.