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Michael Munday 90cb1fdaf2 cmd/link: add Minalign field to ld.Arch
The new Minalign field sets the minimum alignment for all symbols.
This is required for the upcoming s390x port which requires symbols
be 2-byte aligned for efficient relative addressing.

All preexisting architectures have Minalign set to 1 which means
that this commit should have no effect.

I tested values of 2, 4 and 8 on linux amd64 and the tests appear to
pass. Increasing Minalign to 16 appears to break the runtime. I
think this is due to assumptions made about the layout of module
data.

toolstash -cmp on linux amd64 shows no changes due to this commit.

Resolves #14604

Change-Id: I0fe042d52c4e4732eba5fabcd0c31102a2408764
Reviewed-on: https://go-review.googlesource.com/20149
Reviewed-by: Minux Ma <minux@golang.org>
Run-TryBot: Minux Ma <minux@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-03-03 04:29:08 +00:00
.github doc: add issue and pull request templates 2016-02-26 03:16:55 +00:00
api go/types: rename Importer2 to ImporterFrom 2016-01-13 23:40:13 +00:00
doc doc: add link to 1.6 release notes on golang.org/project page 2016-03-03 01:11:02 +00:00
lib/time misc: update timezone database to IANA 2016a 2016-02-03 03:14:59 +00:00
misc misc/cgo/test: rewrite windows version of mysleep 2016-03-02 23:33:32 +00:00
src cmd/link: add Minalign field to ld.Arch 2016-03-03 04:29:08 +00:00
test Merge branch 'dev.ssa' into mergebranch 2016-03-01 12:50:17 -08:00
.gitattributes .gitattributes: prevent all magic line ending changes 2014-12-12 23:14:54 +00:00
.gitignore .gitignore: ignore src/go/build/zcgo.go 2016-02-24 04:25:46 +00:00
AUTHORS A+C: manual updates 2016-01-08 06:02:39 +00:00
CONTRIBUTING.md doc: suggest security@golang.org for reporting security issues 2015-06-26 09:53:36 +00:00
CONTRIBUTORS A+C: manual updates 2016-01-08 06:02:39 +00:00
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README.md readme: emphasize issue tracker is for bugs/proposals 2015-10-02 18:44:14 +00:00
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