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1a7709d6af
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Cherry Mui 1a7709d6af runtime: use 1-byte load for address checking in racecallatomic 
In racecallatomic, we do a load before calling into TSAN, so if
the address is invalid we fault on the Go stack. We currently use
a 8-byte load instruction, regardless of the data size that the
atomic operation is performed on. So if, say, we are doing a
LoadUint32 at an address that is the last 4 bytes of a memory
mapping, we may fault unexpectedly. Do a 1-byte load instead.
(Ideally we should do a load with the right size, so we fault
correctly if we're given an unaligned address for a wide load
across a page boundary. Leave that for another CL.)

Fix AMD64, ARM64, and PPC64. The code already uses 1-byte load
on S390X.

Should fix #60825.

Change-Id: I3dee93eb08ba180c85e86a9d2e71b5b520e8dcf0
Reviewed-on: https://go-review.googlesource.com/c/go/+/503937
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: David Chase <drchase@google.com>
2023-06-16 14:09:02 +00:00
.github doc: normalize proposal-process links 2023-03-29 22:00:27 +00:00
api slices: consistently use S ~[]E 2023-06-14 17:09:34 +00:00
doc spec: explain in which situations function type arguments can be omitted 2023-06-14 17:00:00 +00:00
lib/time lib/time: update to 2023c/2023c 2023-05-03 20:14:11 +00:00
misc misc/wasm: set PATH variable in exec 2023-05-26 17:21:14 +00:00
src runtime: use 1-byte load for address checking in racecallatomic 2023-06-16 14:09:02 +00:00
test cmd/compile: do not report division by error during typecheck 2023-06-15 18:41:09 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore cmd/dist: refactor generated cgo-support logic 2023-04-20 17:26:46 +00:00
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00
CONTRIBUTING.md doc: normalize proposal-process links 2023-03-29 22:00:27 +00:00
go.env cmd/go: additional doc-inspired tests and bug fixes 2023-06-06 19:18:46 +00:00
LICENSE
PATENTS
README.md README: update from CC-BY-3.0 to CC-BY-4.0 2022-11-02 20:14:56 +00:00
SECURITY.md SECURITY.md: replace golang.org with go.dev 2022-04-26 19:59:47 +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 4.0 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://go.dev/dl/.

After downloading a binary release, visit https://go.dev/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://go.dev/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://go.dev/doc/contribute.

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