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Katie Hockman 2f072cf8a9 [dev.fuzz] internal/fuzz: implement a more robust mutator
This change also allocates a larger capacity (100 MB) for the shared
memory at the start, rather than beginning as small as possible and
immediately needing to grow while mutating. This means that 100 MB is
the maximum size of a corpus entry currently, since growing the shared
memory is not yet supported.

The code in internal/fuzz/mutator.go and internal/fuzz/pcg.go are copied
from, or heavily inspired by, code originally authored by Dmitry Vyukov
and Josh Bleecher Snyder as part of the go-fuzz project. Thanks to them
for their contributions. See https://github.com/dvyukov/go-fuzz.

Change-Id: I0d51d53976e23933072e760ff78e6c4ad9dcd862
Reviewed-on: https://go-review.googlesource.com/c/go/+/281972
Run-TryBot: Katie Hockman <katie@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Trust: Katie Hockman <katie@golang.org>
2021-01-12 16:31:19 +00:00
.github .github: add link to questions in ISSUE_TEMPLATE 2020-01-06 17:05:31 +00:00
api [dev.fuzz] all: merge master into dev.fuzz 2020-12-14 10:06:13 -05:00
doc doc: make clear that Go 1.4 is not required for bootstrap 2020-12-11 22:13:50 +00:00
lib/time lib/time, time/tzdata: update tz data to 2020d 2020-10-24 21:42:44 +00:00
misc cmd/compile, runtime: use __msan_memmove for moving data, split msanread to fields 2020-12-03 15:40:11 +00:00
src [dev.fuzz] internal/fuzz: implement a more robust mutator 2021-01-12 16:31:19 +00:00
test cmd/compile: set correct type for OpIData 2020-12-14 03:21:35 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A+C: add Kush Patel (corporate CLA for Hootsuite Inc) 2020-07-08 00:10:44 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS CONTRIBUTORS: update for the Go 1.15 release 2020-08-10 21:51:48 +00:00
LICENSE
PATENTS
README.md README: linkify some paths 2018-06-06 18:07:01 +00:00
SECURITY.md SECURITY.md: update go versions 2019-09-26 15:34:57 +00:00
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The Go Programming Language

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