libgo: update to Go 1.11.1 release

    
    Reviewed-on: https://go-review.googlesource.com/c/140277

From-SVN: r264932

5 files changed, 19 insertions, 1 deletions

diff --git a/libgo/go/cmd/go/alldocs.go b/libgo/go/cmd/go/alldocs.go
index ebbd154f3e6..1060e779c1b 100644
--- a/libgo/go/cmd/go/alldocs.go
+++ b/libgo/go/cmd/go/alldocs.go
@@ -1449,6 +1449,12 @@
 // 		The directory where the go command will write
 // 		temporary source files, packages, and binaries.
 //
+// Each entry in the GOFLAGS list must be a standalone flag.
+// Because the entries are space-separated, flag values must
+// not contain spaces. In some cases, you can provide multiple flag
+// values instead: for example, to set '-ldflags=-s -w'
+// you can use 'GOFLAGS=-ldflags=-s -ldflags=-w'.
+//
 // Environment variables for use with cgo:
 //
 // 	CC
diff --git a/libgo/go/cmd/go/internal/help/helpdoc.go b/libgo/go/cmd/go/internal/help/helpdoc.go
index aff4ce12f6c..e2c4e61615b 100644
--- a/libgo/go/cmd/go/internal/help/helpdoc.go
+++ b/libgo/go/cmd/go/internal/help/helpdoc.go
@@ -507,6 +507,12 @@ General-purpose environment variables:
 		The directory where the go command will write
 		temporary source files, packages, and binaries.
 
+Each entry in the GOFLAGS list must be a standalone flag.
+Because the entries are space-separated, flag values must
+not contain spaces. In some cases, you can provide multiple flag
+values instead: for example, to set '-ldflags=-s -w'
+you can use 'GOFLAGS=-ldflags=-s -ldflags=-w'.
+
 Environment variables for use with cgo:
 
 	CC
diff --git a/libgo/go/cmd/go/internal/work/exec.go b/libgo/go/cmd/go/internal/work/exec.go
index 84870e52ccc..8aba293dd34 100644
--- a/libgo/go/cmd/go/internal/work/exec.go
+++ b/libgo/go/cmd/go/internal/work/exec.go
@@ -224,7 +224,9 @@ func (b *Builder) buildActionID(a *Action) cache.ActionID {
 		if len(p.SFiles) > 0 {
 			fmt.Fprintf(h, "asm %q %q %q\n", b.toolID("asm"), forcedAsmflags, p.Internal.Asmflags)
 		}
-		fmt.Fprintf(h, "GO$GOARCH=%s\n", os.Getenv("GO"+strings.ToUpper(cfg.BuildContext.GOARCH))) // GO386, GOARM, etc
+		// GO386, GOARM, GOMIPS, etc.
+		baseArch := strings.TrimSuffix(cfg.BuildContext.GOARCH, "le")
+		fmt.Fprintf(h, "GO$GOARCH=%s\n", os.Getenv("GO"+strings.ToUpper(baseArch)))
 
 		// TODO(rsc): Convince compiler team not to add more magic environment variables,
 		// or perhaps restrict the environment variables passed to subprocesses.
diff --git a/libgo/go/cmd/go/internal/work/security.go b/libgo/go/cmd/go/internal/work/security.go
index d5d126123a4..2132c5f3e15 100644
--- a/libgo/go/cmd/go/internal/work/security.go
+++ b/libgo/go/cmd/go/internal/work/security.go
@@ -170,6 +170,7 @@ var validLinkerFlags = []*regexp.Regexp{
 	re(`-Wl,-e[=,][a-zA-Z0-9]*`),
 	re(`-Wl,--enable-new-dtags`),
 	re(`-Wl,--end-group`),
+	re(`-Wl,--(no-)?export-dynamic`),
 	re(`-Wl,-framework,[^,@\-][^,]+`),
 	re(`-Wl,-headerpad_max_install_names`),
 	re(`-Wl,--no-undefined`),
diff --git a/libgo/go/cmd/go/script_test.go b/libgo/go/cmd/go/script_test.go
index 9e958e0c635..6399faac0f4 100644
--- a/libgo/go/cmd/go/script_test.go
+++ b/libgo/go/cmd/go/script_test.go
@@ -635,6 +635,9 @@ func scriptMatch(ts *testScript, neg bool, args []string, text, name string) {
 		text = string(data)
 	}
 
+	// Matching against workdir would be misleading.
+	text = strings.Replace(text, ts.workdir, "$WORK", -1)
+
 	if neg {
 		if re.MatchString(text) {
 			if isGrep {