From: Shenghou Ma <minux@golang.org>
Date: Fri, 11 Sep 2015 04:26:50 +0000 (-0400)
Subject: cmd/go: provide full path as os.Args[0] when invoking tools
X-Git-Tag: go1.6beta1~1043
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=1fd78e1f600d10475b85381427bda9f14f86e0f0;p=gostls13.git

cmd/go: provide full path as os.Args[0] when invoking tools

cmd/dist needs to re-exec or open itself to detect GOARM (CL 3973) and
detect host machine endianness (CL 14460).

Change-Id: If6438831ab0715ba8e236d64bb2c7c1bde1470aa
Reviewed-on: https://go-review.googlesource.com/14476
Reviewed-by: Ian Lance Taylor <iant@golang.org>
---

diff --git a/src/cmd/go/tool.go b/src/cmd/go/tool.go
index 937ca1f306..9ff0dcfb12 100644
--- a/src/cmd/go/tool.go
+++ b/src/cmd/go/tool.go
@@ -98,6 +98,7 @@ func runTool(cmd *Command, args []string) {
 		fmt.Printf("%s\n", cmd)
 		return
 	}
+	args[0] = toolPath // in case the tool wants to re-exec itself, e.g. cmd/dist
 	toolCmd := &exec.Cmd{
 		Path:   toolPath,
 		Args:   args,