From: Ian Lance Taylor <iant@golang.org>
Date: Mon, 4 Jan 2021 22:06:29 +0000 (-0800)
Subject: cmd/go: pass embedcfg to gccgo if supported
X-Git-Tag: go1.16rc1~124
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=0b0d004983b5f06d7e8ae2084fc7d6612f1aa869;p=gostls13.git

cmd/go: pass embedcfg to gccgo if supported

For #41191

Change-Id: I75d327759c3d9ef061c19a80b9b2619038dedf68
Reviewed-on: https://go-review.googlesource.com/c/go/+/281492
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
---

diff --git a/src/cmd/go/internal/work/gccgo.go b/src/cmd/go/internal/work/gccgo.go
index 3ffd01c473..45ff7c9838 100644
--- a/src/cmd/go/internal/work/gccgo.go
+++ b/src/cmd/go/internal/work/gccgo.go
@@ -93,6 +93,12 @@ func (tools gccgoToolchain) gc(b *Builder, a *Action, archive string, importcfg,
 			args = append(args, "-I", root)
 		}
 	}
+	if embedcfg != nil && b.gccSupportsFlag(args[:1], "-fgo-embedcfg=/dev/null") {
+		if err := b.writeFile(objdir+"embedcfg", embedcfg); err != nil {
+			return "", nil, err
+		}
+		args = append(args, "-fgo-embedcfg="+objdir+"embedcfg")
+	}
 
 	if b.gccSupportsFlag(args[:1], "-ffile-prefix-map=a=b") {
 		if cfg.BuildTrimpath {