src/share/vm/services/memTracker.cpp

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 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.

@@ -45,13 +45,13 @@
 
 
 NMT_TrackingLevel MemTracker::init_tracking_level() {
   NMT_TrackingLevel level = NMT_off;
   char buf[64];
-  char nmt_option[64];
   jio_snprintf(buf, sizeof(buf), "NMT_LEVEL_%d", os::current_process_id());
-  if (os::getenv(buf, nmt_option, sizeof(nmt_option))) {
+  const char *nmt_option = ::getenv(buf);
+  if (nmt_option != NULL) {
     if (strcmp(nmt_option, "summary") == 0) {
       level = NMT_summary;
     } else if (strcmp(nmt_option, "detail") == 0) {
 #if PLATFORM_NATIVE_STACK_WALKING_SUPPORTED
       level = NMT_detail;

@@ -321,6 +321,5 @@
   out->print_cr("             Tracking stack depth: %d", NMT_TrackingStackDepth);
   NOT_PRODUCT(out->print_cr("Peak concurrent access: %d", MallocSiteTable::access_peak_count());)
   out->print_cr(" ");
   walker.report_statistics(out);
 }
-