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| author | Quim Muntal <quimmuntal@gmail.com> | 2020-10-22 22:32:20 +0200 |
|---|---|---|
| committer | Dmitri Shuralyov <dmitshur@golang.org> | 2021-03-31 21:39:47 +0000 |
| commit | 82f9c6cac1bcc6bc80f17d1415ac3f62c0afa6c5 (patch) | |
| tree | 085a8f22ae2d11d1feb6c5c495b41786fccbaa1d /src/cmd/cgo/out.go | |
| parent | 5055314a5749664ab66a24beed8158552e276959 (diff) | |
| download | go-82f9c6cac1bcc6bc80f17d1415ac3f62c0afa6c5.tar.gz go-82f9c6cac1bcc6bc80f17d1415ac3f62c0afa6c5.zip | |
[release-branch.go1.15] cmd/link: avoid exporting all symbols on windows buildmode=pie
Marking one functions with __declspec(dllexport) forces mingw to
create .reloc section without having to export all symbols.
See https://insights.sei.cmu.edu/cert/2018/08/when-aslr-is-not-really-aslr---the-case-of-incorrect-assumptions-and-bad-defaults.html for more info.
This change cuts 73kb of a "hello world" pie binary.
Updates #6853.
Updates #40795.
Fixes #43592.
Change-Id: I3cc57c3b64f61187550bc8751dfa085f106c8475
Reviewed-on: https://go-review.googlesource.com/c/go/+/264459
Trust: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/300692
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Diffstat (limited to 'src/cmd/cgo/out.go')
0 files changed, 0 insertions, 0 deletions