all: skip unsupported tests on AIX

This commit skips tests which aren't yet supported on AIX.

nosplit.go is disabled because stackGuardMultiplier is increased for
syscalls.

Change-Id: Ib5ff9a4539c7646bcb6caee159f105ff8a160ad7
Reviewed-on: https://go-review.googlesource.com/c/146939Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>

src/cmd/internal/obj/x86/issue19518_test.go

@@ -11,7 +11,6 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
-	"strings"
 	"testing"
 )
 
@@ -68,13 +67,8 @@ func objdumpOutput(t *testing.T) []byte {
 		testenv.GoToolPath(t), "build", "-o",
 		filepath.Join(tmpdir, "output"))
 
-	var env []string
-	for _, v := range os.Environ() {
-		if !strings.HasPrefix(v, "GOARCH=") {
-			env = append(env, v)
-		}
-	}
-	cmd.Env = append(env, "GOARCH=amd64")
+	cmd.Env = append(os.Environ(), "GOARCH=amd64", "GOOS=linux")
+
 	out, err := cmd.CombinedOutput()
 	if err != nil {
 		t.Fatalf("error %s output %s", err, out)

src/cmd/internal/obj/x86/obj6_test.go

@@ -99,13 +99,7 @@ func asmOutput(t *testing.T, s string) []byte {
 		testenv.GoToolPath(t), "tool", "asm", "-S", "-dynlink",
 		"-o", filepath.Join(tmpdir, "output.6"), tmpfile.Name())
 
-	var env []string
-	for _, v := range os.Environ() {
-		if !strings.HasPrefix(v, "GOARCH=") {
-			env = append(env, v)
-		}
-	}
-	cmd.Env = append(env, "GOARCH=amd64")
+	cmd.Env = append(os.Environ(), "GOARCH=amd64", "GOOS=linux")
 	asmout, err := cmd.CombinedOutput()
 	if err != nil {
 		t.Fatalf("error %s output %s", err, asmout)

src/debug/elf/file_test.go

@@ -784,7 +784,7 @@ func TestCompressedSection(t *testing.T) {
 func TestNoSectionOverlaps(t *testing.T) {
 	// Ensure cmd/link outputs sections without overlaps.
 	switch runtime.GOOS {
-	case "android", "darwin", "js", "nacl", "plan9", "windows":
+	case "aix", "android", "darwin", "js", "nacl", "plan9", "windows":
 		t.Skipf("cmd/link doesn't produce ELF binaries on %s", runtime.GOOS)
 	}
 	_ = net.ResolveIPAddr // force dynamic linkage

src/runtime/crash_test.go

@@ -623,6 +623,9 @@ func TestBadTraceback(t *testing.T) {
 }
 
 func TestTimePprof(t *testing.T) {
+	if runtime.GOOS == "aix" {
+		t.Skip("pprof not yet available on AIX (see golang.org/issue/28555)")
+	}
 	fn := runTestProg(t, "testprog", "TimeProf")
 	fn = strings.TrimSpace(fn)
 	defer os.Remove(fn)

src/runtime/pprof/pprof_test.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !nacl,!js
+// +build !aix,!nacl,!js
 
 package pprof
 

src/runtime/runtime-gdb_test.go

@@ -36,6 +36,8 @@ func checkGdbEnvironment(t *testing.T) {
 		if runtime.GOARCH == "mips" {
 			t.Skip("skipping gdb tests on linux/mips; see https://golang.org/issue/25939")
 		}
+	case "aix":
+		t.Skip("gdb does not work on AIX; see golang.org/issue/28558")
 	}
 	if final := os.Getenv("GOROOT_FINAL"); final != "" && runtime.GOROOT() != final {
 		t.Skip("gdb test can fail with GOROOT_FINAL pending")

test/nosplit.go

-// +build !nacl,!js,!gcflags_noopt
+// +build !nacl,!js,!aix,!gcflags_noopt
 // run
 
 // Copyright 2014 The Go Authors. All rights reserved.