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8181820: jdk/test/lib/Platform should not depend on jdk/test/lib/Utils

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Reviewed-by: alanb, chegar
This commit is contained in:
Ekaterina Pavlova 2017-06-12 12:39:26 -07:00
parent 73ed08346f
commit d222800a8b
1 changed files with 12 additions and 2 deletions

14
test/lib/jdk/test/lib/Platform.java

@ -23,6 +23,10 @@
package jdk.test.lib;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.regex.Pattern;
public class Platform {
@ -228,7 +232,7 @@ public class Platform {
public static boolean canPtraceAttachLinux() throws Exception {
// SELinux deny_ptrace:
String deny_ptrace = Utils.fileAsString("/sys/fs/selinux/booleans/deny_ptrace");
String deny_ptrace = fileAsString("/sys/fs/selinux/booleans/deny_ptrace");
if (deny_ptrace != null && deny_ptrace.contains("1")) {
// ptrace will be denied:
return false;
@ -239,7 +243,7 @@ public class Platform {
// 1 - restricted ptrace: a process must be a children of the inferior or user is root
// 2 - only processes with CAP_SYS_PTRACE may use ptrace or user is root
// 3 - no attach: no processes may use ptrace with PTRACE_ATTACH
String ptrace_scope = Utils.fileAsString("/proc/sys/kernel/yama/ptrace_scope");
String ptrace_scope = fileAsString("/proc/sys/kernel/yama/ptrace_scope");
if (ptrace_scope != null) {
if (ptrace_scope.startsWith("3")) {
return false;
@ -265,4 +269,10 @@ public class Platform {
.matcher(osArch)
.matches();
}
private static String fileAsString(String filename) throws IOException {
Path filePath = Paths.get(filename);
if (!Files.exists(filePath)) return null;
return new String(Files.readAllBytes(filePath));
}
}