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/*

 * @test Testlibadimalloc.java

 * @bug 8141445

 * @summary make sure the Solaris Sparc M7 libadimalloc.so library generates SIGSEGV's on buffer overflow

 * @requires (os.family == "solaris" & os.arch == "sparcv9")

 * @modules java.base/jdk.internal.misc

 * @compile SEGVOverflow.java

 * @run driver Testlibadimalloc

 */

import java.io.*;

import java.nio.file.*;

import java.util.*;

public class Testlibadimalloc {

    // Expected return value when java program cores

    static final int EXPECTED_RET_VAL = 6;

    public static void main(String[] args) throws Throwable {

        // See if the libadimalloc.so library exists

        Path path = Paths.get("/usr/lib/64/libadimalloc.so");

        // If the libadimalloc.so file does not exist, pass the test

        if (!(Files.isRegularFile(path) || Files.isSymbolicLink(path))) {

            System.out.println("Test skipped; libadimalloc.so does not exist");

            return;

        }

        // Get the JDK, library and class path properties

        String libpath = System.getProperty("java.library.path");

        // Create a new java process for the SEGVOverflow Java/JNI test

        ProcessBuilder builder = ProcessTools.createJavaProcessBuilder(

            "-Djava.library.path=" + libpath + ":.", "SEGVOverflow");

        // Add the LD_PRELOAD_64 value to the environment

        Map<String, String> env = builder.environment();

        env.put("LD_PRELOAD_64", "libadimalloc.so");

        // Start the process, get the pid and then wait for the test to finish

        Process process = builder.start();

        long pid = process.getPid();

        int retval = process.waitFor();

        // make sure the SEGVOverflow test crashed

        boolean found = false;

        if (retval == EXPECTED_RET_VAL) {

            String filename = "hs_err_pid" + pid + ".log";

            Path filepath = Paths.get(filename);

            // check to see if hs_err_file exists

            if (Files.isRegularFile(filepath)) {

                // see if the crash was due to a SEGV_ACCPERR signal

                File hs_err_file = new File(filename);

                Scanner scanner = new Scanner(hs_err_file);

                while (!found && scanner.hasNextLine()) {

                    String nextline = scanner.nextLine();

                    if (nextline.contains("SEGV_ACCPERR")) {

                         found = true;

                    }

                }

            } else {

                System.out.println("Test failed; hs_err_file does not exist: "

                                   + filepath);

            }

        } else {

            System.out.println("Test failed; java test program did not " +

                               "return expected error: expected = " +

                               EXPECTED_RET_VAL + ", retval = " + retval);

        }

        // If SEGV_ACCPERR was not found in the hs_err file fail the test

        if (!found) {

            System.out.println("FAIL: SEGV_ACCPERR not found");

            throw new RuntimeException("FAIL: SEGV_ACCPERR not found");

        }

    }

}