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cmd/go: don't collect package CGOLDFLAGS when using gccgo

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They are already collected via cmd/cgo.

The gccgo_link_c test is tweaked to do real linking as with this
change the cgo ldflags are not fully reflected in go build -n output,
since they now only come from the built archive.

Fixes #60287

Change-Id: Id433435fe8aeb9571327bf936e52a37f400cef4c
Reviewed-on: https://go-review.googlesource.com/c/go/+/497117
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Andrey Bokhanko <andreybokhanko@gmail.com>
This commit is contained in:
Ian Lance Taylor 2023-05-22 17:55:43 -07:00 committed by Gopher Robot
parent 80a7315c34
commit d3e3e11298
2 changed files with 2 additions and 11 deletions
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10
src/cmd/go/internal/work/gccgo.go
View File

@ -386,16 +386,9 @@ func (tools gccgoToolchain) link(b *Builder, root *Action, out, importcfg string
}
for _, a := range allactions {
// Gather CgoLDFLAGS, but not from standard packages.
// The go tool can dig up runtime/cgo from GOROOT and
// think that it should use its CgoLDFLAGS, but gccgo
// doesn't use runtime/cgo.
if a.Package == nil {
continue
}
if !a.Package.Standard {
cgoldflags = append(cgoldflags, a.Package.CgoLDFLAGS...)
}
if len(a.Package.CgoFiles) > 0 {
usesCgo = true
}
@ -425,9 +418,6 @@ func (tools gccgoToolchain) link(b *Builder, root *Action, out, importcfg string
ldflags = append(ldflags, cgoldflags...)
ldflags = append(ldflags, envList("CGO_LDFLAGS", "")...)
if root.Package != nil {
ldflags = append(ldflags, root.Package.CgoLDFLAGS...)
}
if cfg.Goos != "aix" {
ldflags = str.StringList("-Wl,-(", ldflags, "-Wl,-)")
}

3
src/cmd/go/testdata/script/gccgo_link_c.txt vendored
View File

@ -4,8 +4,9 @@
[!cgo] skip
[!exec:gccgo] skip
go build -n -compiler gccgo
! go build -x -compiler gccgo
stderr 'gccgo.*\-L [^ ]*alibpath \-lalib' # make sure that Go-inline "#cgo LDFLAGS:" ("-L alibpath -lalib") passed to gccgo linking stage
! stderr 'gccgo.*-lalib.*-lalib' # make sure -lalib is only passed once
-- go.mod --
module m