From: Ian Lance Taylor <iant@golang.org>
Date: Mon, 11 May 2020 23:23:44 +0000 (-0700)
Subject: syscall: append to environment in tests, don't clobber it
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4f157ed7749fd13c3562dd09696f7d675b86434f;p=gcc.git

syscall: append to environment in tests, don't clobber it

This is a partial backport of https://golang.org/cl/233318.
It's only a partial backport because part of the change was
already applied to libgo in CL 193497 as part of the update
to the Go 1.13beta1 release.

Fixes PR go/95061

Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/233359
---

diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE
index 428b329382b..939ba7c8929 100644
--- a/gcc/go/gofrontend/MERGE
+++ b/gcc/go/gofrontend/MERGE
@@ -1,4 +1,4 @@
-41019d50ae519328dd3cf200815a2a2b0b64674e
+8645632618262d1661ece0c9e6fe9e04c6e3a878
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.
diff --git a/libgo/go/syscall/syscall_linux_test.go b/libgo/go/syscall/syscall_linux_test.go
index 97059c87d3d..c12df4cf5c7 100644
--- a/libgo/go/syscall/syscall_linux_test.go
+++ b/libgo/go/syscall/syscall_linux_test.go
@@ -187,7 +187,7 @@ func TestLinuxDeathSignal(t *testing.T) {
 	}
 
 	cmd := exec.Command(tmpBinary)
-	cmd.Env = []string{"GO_DEATHSIG_PARENT=1"}
+	cmd.Env = append(os.Environ(), "GO_DEATHSIG_PARENT=1")
 	chldStdin, err := cmd.StdinPipe()
 	if err != nil {
 		t.Fatalf("failed to create new stdin pipe: %v", err)
@@ -225,7 +225,10 @@ func TestLinuxDeathSignal(t *testing.T) {
 
 func deathSignalParent() {
 	cmd := exec.Command(os.Args[0])
-	cmd.Env = []string{"GO_DEATHSIG_CHILD=1"}
+	cmd.Env = append(os.Environ(),
+		"GO_DEATHSIG_PARENT=",
+		"GO_DEATHSIG_CHILD=1",
+	)
 	cmd.Stdin = os.Stdin
 	cmd.Stdout = os.Stdout
 	attrs := syscall.SysProcAttr{
@@ -360,7 +363,7 @@ func TestSyscallNoError(t *testing.T) {
 	}
 
 	cmd := exec.Command(tmpBinary)
-	cmd.Env = []string{"GO_SYSCALL_NOERROR=1"}
+	cmd.Env = append(os.Environ(), "GO_SYSCALL_NOERROR=1")
 
 	out, err := cmd.CombinedOutput()
 	if err != nil {