From: Ian Lance Taylor <iant@golang.org>
Date: Sun, 24 May 2015 18:29:38 +0000 (-0700)
Subject: cmd/link/internal/ld: if -v, display external linker output
X-Git-Tag: go1.5beta1~477
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=714291f2d80bab1599a866f266a4fc6546e61632;p=gostls13.git

cmd/link/internal/ld: if -v, display external linker output

It can be useful when debugging to be able to see what the external
linker is doing even when it succeeds.  In particular this permits
passing -v to the external linker to see precisely what it is doing.

Change-Id: Ifed441912d97bbebea20303fdb899e140b380215
Reviewed-on: https://go-review.googlesource.com/10363
Reviewed-by: Minux Ma <minux@golang.org>
---

diff --git a/src/cmd/link/internal/ld/lib.go b/src/cmd/link/internal/ld/lib.go
index 6cf0b525e5..80c01538ac 100644
--- a/src/cmd/link/internal/ld/lib.go
+++ b/src/cmd/link/internal/ld/lib.go
@@ -1028,6 +1028,9 @@ func hostlink() {
 
 	if out, err := exec.Command(argv[0], argv[1:]...).CombinedOutput(); err != nil {
 		Exitf("running %s failed: %v\n%s", argv[0], err, out)
+	} else if Debug['v'] != 0 && len(out) > 0 {
+		fmt.Fprintf(&Bso, "%s", out)
+		Bso.Flush()
 	}
 
 	if Debug['s'] == 0 && debug_s == 0 && HEADTYPE == obj.Hdarwin {