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Than McIntosh 1edc2769ca cmd/link/internal/loadpe: add rudimentary COMDAT support 
Add some rudimentary support to the PE file loader for handling
sections in COMDAT when reading host object files. This is needed
in order to link programs with support libraries that are of a more
modern vintage than GCC 5.X.

If a given section XYZ is in COMDAT, the symbol for that section will
be flagged, e.g. section 'Characteristics' field will have the
IMAGE_SCN_LNK_COMDAT bit set, and the symbol will be followed by an
"aux" symbol that includes the COMDAT handling strategy that the
linker needs to use.

This patch supports two COMDAT strategies (IMAGE_COMDAT_SELECT_ANY and
IMAGE_COMDAT_SELECT_SAME_SIZE); more work will have to be done in the
future to support other flavors if it turns out that they are needed.

Updates #35006.

Change-Id: I516e825c30ed3df94ba08323b8a24fb847e10c1a
Reviewed-on: https://go-review.googlesource.com/c/go/+/383835
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
 		2022-03-31 15:59:05 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api debug/pe: add APIs for reading section def aux info 2022-03-31 14:57:35 +00:00
doc spec: clarify type term restriction for type parameters 2022-03-31 01:01:43 +00:00
lib/time lib/time, time/tzdata: update to 2021e 2021-11-11 05:16:39 +00:00
misc cmd/compile: set conversions to unsafe.Pointer as an escaping operation when -asan is enabled 2022-03-17 08:43:51 +00:00
src cmd/link/internal/loadpe: add rudimentary COMDAT support 2022-03-31 15:59:05 +00:00
test cmd/compile/internal/syntax: better errors for syntax errors in lists 2022-03-31 00:26:58 +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: change email of Ben Shi (individual CLA) 2022-03-22 16:02:31 +00:00
CONTRIBUTING.md
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CONTRIBUTORS A+C: change email of Ben Shi (individual CLA) 2022-03-22 16:02:31 +00:00
LICENSE
…
PATENTS
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README.md README.md: update links to go.dev 2022-03-20 16:05:03 +00:00
SECURITY.md
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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://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://golang.org/wiki/Questions for a list of places to ask questions about the Go language.