src/share/vm/runtime/vm_version.cpp

rev 9054 : 8219241: Provide basic virtualization related info in the hs_error file on linux/windows x86_64
Reviewed-by: dholmes, mdoerr

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1998, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2019, 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.

@@ -51,10 +51,12 @@
 bool Abstract_VM_Version::_supports_atomic_getadd8 = false;
 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
 unsigned int Abstract_VM_Version::_L1_data_cache_line_size = 0;
 int Abstract_VM_Version::_reserve_for_allocation_prefetch = 0;
 
+VirtualizationType Abstract_VM_Version::_detected_virtualization = NoDetectedVirtualization;
+
 #ifndef HOTSPOT_RELEASE_VERSION
   #error HOTSPOT_RELEASE_VERSION must be defined
 #endif
 #ifndef JRE_RELEASE_VERSION
   #error JRE_RELEASE_VERSION must be defined

@@ -285,21 +287,42 @@
   return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
          ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
          (Abstract_VM_Version::vm_build_number() & 0xFF);
 }
 
-
 void VM_Version_init() {
   VM_Version::initialize();
 
 #ifndef PRODUCT
   if (PrintMiscellaneous && Verbose) {
     os::print_cpu_info(tty);
   }
 #endif
 }
 
+bool Abstract_VM_Version::print_matching_lines_from_file(const char* filename, outputStream* st, const char* keywords_to_match[]) {
+  char line[500];
+  FILE* fp = fopen(filename, "r");
+  if (fp == NULL) {
+    return false;
+  }
+
+  st->print_cr("Virtualization information:");
+  while (fgets(line, sizeof(line), fp) != NULL) {
+    int i = 0;
+    while (keywords_to_match[i] != NULL) {
+      if (strncmp(line, keywords_to_match[i], strlen(keywords_to_match[i])) == 0) {
+        st->print("%s", line);
+        break;
+      }
+      i++;
+    }
+  }
+  fclose(fp);
+  return true;
+}
+
 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
                                                       unsigned int num,
                                                       unsigned int den,
                                                       unsigned int switch_pt) {
   if (FLAG_IS_DEFAULT(ParallelGCThreads)) {