cmd/go: pass embedcfg to gccgo if supported

ianlancetaylor · ianlancetaylor · commit 0b0d004983b5 · 2021-01-05T23:13:49.000Z
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
@@ -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 {

Original file line number	Diff line number	Diff line change
`@@ -93,6 +93,12 @@ func (tools gccgoToolchain) gc(b Builder, a Action, archive string, importcfg,`
`93`	`93`	`args = append(args, "-I", root)`
`94`	`94`	`}`
`95`	`95`	`}`
	`96`	`+ if embedcfg != nil && b.gccSupportsFlag(args[:1], "-fgo-embedcfg=/dev/null") {`
	`97`	`+ if err := b.writeFile(objdir+"embedcfg", embedcfg); err != nil {`
	`98`	`+ return "", nil, err`
	`99`	`+ }`
	`100`	`+ args = append(args, "-fgo-embedcfg="+objdir+"embedcfg")`
	`101`	`+ }`
`96`	`102`
`97`	`103`	`if b.gccSupportsFlag(args[:1], "-ffile-prefix-map=a=b") {`
`98`	`104`	`if cfg.BuildTrimpath {`