# HG changeset patch
# User gthornbr
# Date 1447867972 28800
# Node ID 2cf348387c442a4dad5719fb3c025850ce630b48
# Parent  892795cc82fe63dacb16be9d43b566d269c82013
8141445: Use of Solaris/SPARC M7 libadimalloc.so can generate unknown signal in hs_err file
Summary: Add libadimalloc.so SIGSEGV defines and a test to validate the correct message is printed in the hs_err file
Reviewed-by: dcubed, dholmes

diff -r 892795cc82fe -r 2cf348387c44 hotspot/make/test/JtregNative.gmk
--- a/hotspot/make/test/JtregNative.gmk	Tue Nov 17 15:14:29 2015 -0800
+++ b/hotspot/make/test/JtregNative.gmk	Wed Nov 18 09:32:52 2015 -0800
@@ -48,6 +48,16 @@
     $(HOTSPOT_TOPDIR)/test/runtime/SameObject \
     #
 
+# Add conditional directories here when needed.
+ifeq ($(OPENJDK_TARGET_OS)-$(OPENJDK_TARGET_CPU_ARCH), solaris-sparc)
+BUILD_HOTSPOT_JTREG_NATIVE_SRC += \
+    $(HOTSPOT_TOPDIR)/test/runtime/libadimalloc.solaris.sparc
+endif
+
+ifeq ($(TOOLCHAIN_TYPE), solstudio)
+    BUILD_HOTSPOT_JTREG_LIBRARIES_LDFLAGS_liboverflow := -lc
+endif
+
 BUILD_HOTSPOT_JTREG_OUTPUT_DIR := $(BUILD_OUTPUT)/support/test/hotspot/jtreg/native
 
 BUILD_HOTSPOT_JTREG_IMAGE_DIR := $(TEST_IMAGE_DIR)/hotspot/jtreg
diff -r 892795cc82fe -r 2cf348387c44 hotspot/src/os/posix/vm/os_posix.cpp
--- a/hotspot/src/os/posix/vm/os_posix.cpp	Tue Nov 17 15:14:29 2015 -0800
+++ b/hotspot/src/os/posix/vm/os_posix.cpp	Wed Nov 18 09:32:52 2015 -0800
@@ -837,6 +837,21 @@
 #if defined(IA64) && !defined(AIX)
     { SIGSEGV, SEGV_PSTKOVF, "SEGV_PSTKOVF", "Paragraph stack overflow" },
 #endif
+#if defined(__sparc) && defined(SOLARIS)
+// define Solaris Sparc M7 ADI SEGV signals
+#if !defined(SEGV_ACCADI)
+#define SEGV_ACCADI 3
+#endif
+    { SIGSEGV, SEGV_ACCADI,  "SEGV_ACCADI",  "ADI not enabled for mapped object." },
+#if !defined(SEGV_ACCDERR)
+#define SEGV_ACCDERR 4
+#endif
+    { SIGSEGV, SEGV_ACCDERR, "SEGV_ACCDERR", "ADI disrupting exception." },
+#if !defined(SEGV_ACCPERR)
+#define SEGV_ACCPERR 5
+#endif
+    { SIGSEGV, SEGV_ACCPERR, "SEGV_ACCPERR", "ADI precise exception." },
+#endif // defined(__sparc) && defined(SOLARIS)
     { SIGBUS,  BUS_ADRALN,   "BUS_ADRALN",   "Invalid address alignment." },
     { SIGBUS,  BUS_ADRERR,   "BUS_ADRERR",   "Nonexistent physical address." },
     { SIGBUS,  BUS_OBJERR,   "BUS_OBJERR",   "Object-specific hardware error." },
diff -r 892795cc82fe -r 2cf348387c44 hotspot/test/runtime/libadimalloc.solaris.sparc/SEGVOverflow.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/libadimalloc.solaris.sparc/SEGVOverflow.java	Wed Nov 18 09:32:52 2015 -0800
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+public class SEGVOverflow {
+
+    static {
+        System.loadLibrary("overflow");
+    }
+
+    native static String nativesegv();
+
+    public static void main(String[] args) {
+        String str = nativesegv();
+        if (str == null) {
+            System.out.println("FAILED: malloc returned null");
+        } else {
+            System.out.println(str);
+        }
+    }
+}
diff -r 892795cc82fe -r 2cf348387c44 hotspot/test/runtime/libadimalloc.solaris.sparc/Testlibadimalloc.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/libadimalloc.solaris.sparc/Testlibadimalloc.java	Wed Nov 18 09:32:52 2015 -0800
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+
+/*
+ * @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")
+ * @library /testlibrary
+ * @build jdk.test.lib.*
+ * @compile SEGVOverflow.java
+ * @run driver Testlibadimalloc
+ */
+
+import java.io.*;
+import java.nio.file.*;
+import java.util.*;
+import jdk.test.lib.ProcessTools;
+
+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");
+        }
+    }
+}
diff -r 892795cc82fe -r 2cf348387c44 hotspot/test/runtime/libadimalloc.solaris.sparc/liboverflow.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/libadimalloc.solaris.sparc/liboverflow.c	Wed Nov 18 09:32:52 2015 -0800
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <jni.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+JNIEXPORT jstring JNICALL Java_SEGVOverflow_nativesegv(JNIEnv *env, jobject obj) {
+  char *buffer1;
+  char *buffer2;
+  char *buffer3;
+  char ch;
+
+  jstring ret = NULL;
+
+  // sleep for a bit to let the libadimalloc library initialize
+  sleep(5);
+
+  // allocate three buffers
+  buffer1 = (char *)malloc(64);
+  buffer2 = (char *)malloc(64);
+  buffer3 = (char *)malloc(64);
+  if ((buffer1 == NULL) || (buffer2 == NULL) || (buffer3 == NULL)) {
+    // this return will result in a test failure
+    return ret;
+  }
+
+  // Read past the end of each buffer multiple times to increase the probability
+  // that an ADI version mismatch occurs so an ADI fault is triggered.
+  ch = buffer1[70];
+  ch = buffer2[70];
+  ch = buffer3[70];
+  ch = buffer1[140];
+  ch = buffer2[140];
+  ch = buffer3[140];
+
+  // create a failed test return value because this test should have cored
+  buffer1 = "TEST FAILED, a read past the end of a buffer succeeded.";
+  ret = (*env)->NewStringUTF(env, buffer1);
+
+  return ret;
+}
+
+#ifdef __cplusplus
+}
+#endif