internal/buildcfg: move build configuration out of cmd/internal/objabi

The go/build package needs access to this configuration,
so move it into a new package available to the standard library.

Change-Id: I868a94148b52350c76116451f4ad9191246adcff
Reviewed-on: https://go-review.googlesource.com/c/go/+/310731
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/src/cmd/compile/internal/noder/import.go b/src/cmd/compile/internal/noder/import.go
index e6e3fe1834..701e9001c8 100644
--- a/src/cmd/compile/internal/noder/import.go
+++ b/src/cmd/compile/internal/noder/import.go
@@ -7,6 +7,7 @@ package noder
 import (
 	"errors"
 	"fmt"
+	"internal/buildcfg"
 	"io"
 	"os"
 	pathpkg "path"
@@ -108,7 +109,7 @@ func openPackage(path string) (*os.File, error) {
 		}
 	}
 
-	if objabi.GOROOT != "" {
+	if buildcfg.GOROOT != "" {
 		suffix := ""
 		if base.Flag.InstallSuffix != "" {
 			suffix = "_" + base.Flag.InstallSuffix
@@ -118,10 +119,10 @@ func openPackage(path string) (*os.File, error) {
 			suffix = "_msan"
 		}
 
-		if file, err := os.Open(fmt.Sprintf("%s/pkg/%s_%s%s/%s.a", objabi.GOROOT, objabi.GOOS, objabi.GOARCH, suffix, path)); err == nil {
+		if file, err := os.Open(fmt.Sprintf("%s/pkg/%s_%s%s/%s.a", buildcfg.GOROOT, buildcfg.GOOS, buildcfg.GOARCH, suffix, path)); err == nil {
 			return file, nil
 		}
-		if file, err := os.Open(fmt.Sprintf("%s/pkg/%s_%s%s/%s.o", objabi.GOROOT, objabi.GOOS, objabi.GOARCH, suffix, path)); err == nil {
+		if file, err := os.Open(fmt.Sprintf("%s/pkg/%s_%s%s/%s.o", buildcfg.GOROOT, buildcfg.GOOS, buildcfg.GOARCH, suffix, path)); err == nil {
 			return file, nil
 		}
 	}