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| author | Quim Muntal <quimmuntal@gmail.com> | 2020-10-22 22:32:20 +0200 |
|---|---|---|
| committer | Austin Clements <austin@google.com> | 2020-11-02 00:46:44 +0000 |
| commit | e463c28cc116fb1f40a4e203bddf93b6ef52c8d9 (patch) | |
| tree | c95ad0a618c0fd9882d4e2cc9914ec5cc7c73813 /src/cmd/internal/objabi | |
| parent | 333d2010ec98aaea244b65b7bc4d7d80c71e21b1 (diff) | |
| download | go-e463c28cc116fb1f40a4e203bddf93b6ef52c8d9.tar.xz | |
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
Fixes #40795
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>
Diffstat (limited to 'src/cmd/internal/objabi')
0 files changed, 0 insertions, 0 deletions