src/share/vm/prims/jni.cpp

rev 2520 : 7016112: CMS: crash during promotion testing
Summary: stdlib:qsort() does byte-by-byte swapping on Windows. This leads to pointer shearing. Fix is to implement a quicksort that does full pointer updates.
Reviewed-by:

*** 3294,3303 ****
--- 3294,3316 ----
      args->javaStackSize = (jint)(ThreadStackSize * K);
    }
    return ret;
  }
  
+ #ifndef PRODUCT
+ 
+ #include "utilities/quicksort.hpp"
+ 
+ void executeInternalVMTests() {
+   if (ExecuteInternalVMTests) {
+     assert(quicksort::testQuicksort(), "testQuicksort failed");
+     tty->print_cr("All tests passed");
+   }
+ }
+ 
+ #endif
+ 
  HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);
  DT_RETURN_MARK_DECL(CreateJavaVM, jint);
  
  _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {
    HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);
*** 3384,3393 ****
--- 3397,3407 ----
      // control both compiler and architectural-based reordering.
      OrderAccess::release_store(&vm_created, 0);
    }
  
    NOT_PRODUCT(test_error_handler(ErrorHandlerTest));
+   NOT_PRODUCT(executeInternalVMTests());
    return result;
  }
  
  HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \
    JavaVM**, jsize, jsize*);