Blame SOURCES/use-buildmode-pie-for-pie-testing.patch

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diff -up go/src/cmd/dist/test.go.pie go/src/cmd/dist/test.go
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--- go/src/cmd/dist/test.go.pie	2017-10-25 20:30:21.000000000 +0200
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+++ go/src/cmd/dist/test.go	2017-11-03 16:47:55.290829798 +0100
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@@ -852,6 +852,16 @@ func (t *tester) supportedBuildmode(mode
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 			return true
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 		}
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 		return false
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+	case "pie":
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+		switch pair {
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+		case "linux-386", "linux-amd64", "linux-arm", "linux-arm64", "linux-ppc64le", "linux-s390x",
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+			"android-amd64", "android-arm", "android-arm64", "android-386":
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+			return true
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+		case "darwin-amd64":
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+			return true
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+		}
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+		return false
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+
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 	default:
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 		log.Fatalf("internal error: unknown buildmode %s", mode)
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 		return false
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@@ -953,24 +963,16 @@ func (t *tester) cgoTest(dt *distTest) e
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 				}
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 			}
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-			if pair != "freebsd-amd64" { // clang -pie fails to link misc/cgo/test
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-				cmd := t.dirCmd("misc/cgo/test",
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-					cc, "-xc", "-o", "/dev/null", "-pie", "-")
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+			if t.supportedBuildmode("pie") {
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+				cmd = t.addCmd(dt, "misc/cgo/test", "go", "test", "-buildmode=pie")
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 				cmd.Env = env
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-				cmd.Stdin = strings.NewReader("int main() {}")
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-				if err := cmd.Run(); err != nil {
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-					fmt.Println("No support for -pie found, skip cgo PIE test.")
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-				} else {
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-					cmd = t.addCmd(dt, "misc/cgo/test", "go", "test", "-ldflags", `-linkmode=external -extldflags "-pie"`)
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-					cmd.Env = env
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-					cmd = t.addCmd(dt, "misc/cgo/testtls", "go", "test", "-ldflags", `-linkmode=external -extldflags "-pie"`)
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-					cmd.Env = env
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+				cmd = t.addCmd(dt, "misc/cgo/testtls", "go", "test", "-buildmode=pie")
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+				cmd.Env = env
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-					cmd = t.addCmd(dt, "misc/cgo/nocgo", "go", "test", "-ldflags", `-linkmode=external -extldflags "-pie"`)
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-					cmd.Env = env
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+				cmd = t.addCmd(dt, "misc/cgo/nocgo", "go", "test", "-buildmode=pie")
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+				cmd.Env = env
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-				}
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 			}
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 		}
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 	}