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cmd/link: don't export all symbols for ELF external linking

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Since this may add a large number of --export-dynamic-symbol options,
use a response file if the command line gets large.

Fixes #53579

Change-Id: Ic226bf372bf1e177a3dae886d1c48f4ce3569c0e
Reviewed-on: https://go-review.googlesource.com/c/go/+/414654
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Joedian Reid <joedian@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This commit is contained in:
Ian Lance Taylor 2022-06-27 14:58:58 -07:00 • committed by Gopher Robot
parent 2bf0f54bbd
commit 1f29f39795
3 changed files with 129 additions and 17 deletions
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8
src/cmd/link/internal/loader/loader.go
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@ -1041,6 +1041,14 @@ func (l *Loader) SetAttrCgoExportDynamic(i Sym, v bool) {
}
}
// ForAllAttrCgoExportDynamic calls f for every symbol that has been
// marked with the "cgo_export_dynamic" compiler directive.
func (l *Loader) ForAllCgoExportDynamic(f func(Sym)) {
for s := range l.attrCgoExportDynamic {
f(s)
}
}
// AttrCgoExportStatic returns true for a symbol that has been
// specially marked via the "cgo_export_static" directive
// written by cgo.