# HG changeset patch
# User kamg
# Date 1299071915 18000
# Node ID 4a9604cd7c5fa9e4cbe654b6b73ed3a40ff13c76
# Parent  5584e20db4817229eb5b2e1ff6c36c9a74656948
6878713: Verifier heap corruption, relating to backward jsrs
Summary: Added overflow detection in arena Amalloc methods
Reviewed-by: coleenp, phh

diff -r 5584e20db481 -r 4a9604cd7c5f src/share/vm/memory/allocation.cpp
--- a/src/share/vm/memory/allocation.cpp	Wed Mar 02 09:41:26 2011 +0100
+++ b/src/share/vm/memory/allocation.cpp	Wed Mar 02 08:18:35 2011 -0500
@@ -422,6 +422,9 @@
   return sum;                   // Return total consumed space.
 }
 
+void Arena::signal_out_of_memory(size_t sz, const char* whence) const {
+  vm_exit_out_of_memory(sz, whence);
+}
 
 // Grow a new Chunk
 void* Arena::grow( size_t x ) {
@@ -431,8 +434,9 @@
   Chunk *k = _chunk;            // Get filled-up chunk address
   _chunk = new (len) Chunk(len);
 
-  if (_chunk == NULL)
-      vm_exit_out_of_memory(len * Chunk::aligned_overhead_size(), "Arena::grow");
+  if (_chunk == NULL) {
+    signal_out_of_memory(len * Chunk::aligned_overhead_size(), "Arena::grow");
+  }
 
   if (k) k->set_next(_chunk);   // Append new chunk to end of linked list
   else _first = _chunk;
@@ -529,6 +533,7 @@
 // for debugging with UseMallocOnly
 void* Arena::internal_malloc_4(size_t x) {
   assert( (x&(sizeof(char*)-1)) == 0, "misaligned size" );
+  check_for_overflow(x, "Arena::internal_malloc_4");
   if (_hwm + x > _max) {
     return grow(x);
   } else {
diff -r 5584e20db481 -r 4a9604cd7c5f src/share/vm/memory/allocation.hpp
--- a/src/share/vm/memory/allocation.hpp	Wed Mar 02 09:41:26 2011 +0100
+++ b/src/share/vm/memory/allocation.hpp	Wed Mar 02 08:18:35 2011 -0500
@@ -207,6 +207,15 @@
   debug_only(void* malloc(size_t size);)
   debug_only(void* internal_malloc_4(size_t x);)
   NOT_PRODUCT(void inc_bytes_allocated(size_t x);)
+
+  void signal_out_of_memory(size_t request, const char* whence) const;
+
+  void check_for_overflow(size_t request, const char* whence) const {
+    if (UINTPTR_MAX - request < (uintptr_t)_hwm) {
+      signal_out_of_memory(request, whence);
+    }
+ }
+
  public:
   Arena();
   Arena(size_t init_size);
@@ -220,6 +229,7 @@
     assert(is_power_of_2(ARENA_AMALLOC_ALIGNMENT) , "should be a power of 2");
     x = ARENA_ALIGN(x);
     debug_only(if (UseMallocOnly) return malloc(x);)
+    check_for_overflow(x, "Arena::Amalloc");
     NOT_PRODUCT(inc_bytes_allocated(x);)
     if (_hwm + x > _max) {
       return grow(x);
@@ -233,6 +243,7 @@
   void *Amalloc_4(size_t x) {
     assert( (x&(sizeof(char*)-1)) == 0, "misaligned size" );
     debug_only(if (UseMallocOnly) return malloc(x);)
+    check_for_overflow(x, "Arena::Amalloc_4");
     NOT_PRODUCT(inc_bytes_allocated(x);)
     if (_hwm + x > _max) {
       return grow(x);
@@ -253,6 +264,7 @@
     size_t delta = (((size_t)_hwm + DALIGN_M1) & ~DALIGN_M1) - (size_t)_hwm;
     x += delta;
 #endif
+    check_for_overflow(x, "Arena::Amalloc_D");
     NOT_PRODUCT(inc_bytes_allocated(x);)
     if (_hwm + x > _max) {
       return grow(x); // grow() returns a result aligned >= 8 bytes.
diff -r 5584e20db481 -r 4a9604cd7c5f src/share/vm/utilities/globalDefinitions_gcc.hpp
--- a/src/share/vm/utilities/globalDefinitions_gcc.hpp	Wed Mar 02 09:41:26 2011 +0100
+++ b/src/share/vm/utilities/globalDefinitions_gcc.hpp	Wed Mar 02 08:18:35 2011 -0500
@@ -77,6 +77,7 @@
 # endif
 
 #ifdef LINUX
+#define __STDC_LIMIT_MACROS
 #include <inttypes.h>
 #include <signal.h>
 #include <ucontext.h>
diff -r 5584e20db481 -r 4a9604cd7c5f src/share/vm/utilities/globalDefinitions_sparcWorks.hpp
--- a/src/share/vm/utilities/globalDefinitions_sparcWorks.hpp	Wed Mar 02 09:41:26 2011 +0100
+++ b/src/share/vm/utilities/globalDefinitions_sparcWorks.hpp	Wed Mar 02 08:18:35 2011 -0500
@@ -148,6 +148,17 @@
 #endif
 #endif
 
+// On solaris 8, UINTPTR_MAX is defined as empty.
+// Everywhere else it's an actual value.
+#if UINTPTR_MAX - 1 == -1
+#undef UINTPTR_MAX
+#ifdef _LP64
+#define UINTPTR_MAX UINT64_MAX
+#else
+#define UINTPTR_MAX UINT32_MAX
+#endif /* ifdef _LP64 */
+#endif
+
 // Additional Java basic types
 
 typedef unsigned char      jubyte;
diff -r 5584e20db481 -r 4a9604cd7c5f src/share/vm/utilities/globalDefinitions_visCPP.hpp
--- a/src/share/vm/utilities/globalDefinitions_visCPP.hpp	Wed Mar 02 09:41:26 2011 +0100
+++ b/src/share/vm/utilities/globalDefinitions_visCPP.hpp	Wed Mar 02 08:18:35 2011 -0500
@@ -41,6 +41,7 @@
 # include <stdio.h> // for va_list
 # include <time.h>
 # include <fcntl.h>
+# include <limits.h>
 // Need this on windows to get the math constants (e.g., M_PI).
 #define _USE_MATH_DEFINES
 # include <math.h>
@@ -99,6 +100,14 @@
 typedef signed   int ssize_t;
 #endif
 
+#ifndef UINTPTR_MAX
+#ifdef _WIN64
+#define UINTPTR_MAX _UI64_MAX
+#else
+#define UINTPTR_MAX _UI32_MAX
+#endif
+#endif
+
 //----------------------------------------------------------------------------------------------------
 // Additional Java basic types
 
diff -r 5584e20db481 -r 4a9604cd7c5f test/runtime/6878713/Test6878713.sh
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/runtime/6878713/Test6878713.sh	Wed Mar 02 08:18:35 2011 -0500
@@ -0,0 +1,74 @@
+#!/bin/sh
+
+##
+## @test
+## @bug 6878713
+## @summary Verifier heap corruption, relating to backward jsrs
+## @run shell/timeout=120 Test6878713.sh
+##
+
+if [ "${TESTSRC}" = "" ]
+then TESTSRC=.
+fi
+
+if [ "${TESTJAVA}" = "" ]
+then
+  PARENT=`dirname \`which java\``
+  TESTJAVA=`dirname ${PARENT}`
+  echo "TESTJAVA not set, selecting " ${TESTJAVA}
+  echo "If this is incorrect, try setting the variable manually."
+fi
+
+if [ "${TESTCLASSES}" = "" ]
+then
+  echo "TESTCLASSES not set.  Test cannot execute.  Failed."
+  exit 1
+fi
+
+BIT_FLAG=""
+
+# set platform-dependent variables
+OS=`uname -s`
+case "$OS" in
+  SunOS | Linux )
+    NULL=/dev/null
+    PS=":"
+    FS="/"
+    ## for solaris, linux it's HOME
+    FILE_LOCATION=$HOME
+    if [ -f ${FILE_LOCATION}${FS}JDK64BIT -a ${OS} = "SunOS" ]
+    then
+        BIT_FLAG=`cat ${FILE_LOCATION}${FS}JDK64BIT | grep -v '^#'`
+    fi
+    ;;
+  Windows_* )
+    NULL=NUL
+    PS=";"
+    FS="\\"
+    ;;
+  * )
+    echo "Unrecognized system!"
+    exit 1;
+    ;;
+esac
+
+JEMMYPATH=${CPAPPEND}
+CLASSPATH=.${PS}${TESTCLASSES}${PS}${JEMMYPATH} ; export CLASSPATH
+
+THIS_DIR=`pwd`
+
+${TESTJAVA}${FS}bin${FS}java ${BIT_FLAG} -version
+
+${TESTJAVA}${FS}bin${FS}jar xvf ${TESTSRC}${FS}testcase.jar
+
+${TESTJAVA}${FS}bin${FS}java ${BIT_FLAG} OOMCrashClass1960_2 > test.out 2>&1
+
+if [ -s core -o -s "hs_*.log" ]
+then
+    cat hs*.log
+    echo "Test Failed"
+    exit 1
+else
+    echo "Test Passed"
+    exit 0
+fi
diff -r 5584e20db481 -r 4a9604cd7c5f test/runtime/6878713/testcase.jar
Binary file test/runtime/6878713/testcase.jar has changed