cmd/go: overwrite program name with full path

If the program path is resolved, replace the first argument of the
exec.Cmd, which is the bare program name with the resolved path.

Change-Id: I92cf5e6f4bb7c8fef9b59f5eab963f4e75b90d07
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/957908
Reviewed-by: Katie Hockman <katiehockman@google.com>
Reviewed-by: Russ Cox <rsc@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/284784
Trust: Roland Shoemaker <roland@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>

diff --git a/src/cmd/go/internal/work/exec.go b/src/cmd/go/internal/work/exec.go
index 16a4ebaa0f78c02a1bfb89d7a5f1563cbd224332..cacb4c05df87a32f31af16546ee6ca2dab1b4931 100644 (file)
--- a/src/cmd/go/internal/work/exec.go
+++ b/src/cmd/go/internal/work/exec.go
@@ -2042,6 +2042,9 @@ func (b *Builder) runOut(a *Action, dir string, env []string, cmdargs ...interfa
 
        var buf bytes.Buffer
        cmd := exec.Command(cmdline[0], cmdline[1:]...)
+       if cmd.Path != "" {
+               cmd.Args[0] = cmd.Path
+       }
        cmd.Stdout = &buf
        cmd.Stderr = &buf
        cleanup := passLongArgsInResponseFiles(cmd)