diff src/os_cpu/linux_sparc/vm/vm_version_linux_sparc.cpp @ 122:435e64505015

6693457: Open-source hotspot linux-sparc support Summary: Move os_cpu/linux_sparc from closed to open Reviewed-by: kamg
author phh
date Thu, 24 Apr 2008 15:07:57 -0400
parents
children d1605aabd0a1
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/os_cpu/linux_sparc/vm/vm_version_linux_sparc.cpp	Thu Apr 24 15:07:57 2008 -0400
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2006 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+# include "incls/_precompiled.incl"
+# include "incls/_vm_version_linux_sparc.cpp.incl"
+
+static bool detect_niagara() {
+  char cpu[128];
+  bool rv = false;
+
+  FILE* fp = fopen("/proc/cpuinfo", "r");
+  if (fp == NULL) {
+    return rv;
+  }
+
+  while (!feof(fp)) {
+    if (fscanf(fp, "cpu\t\t: %100[^\n]", &cpu) == 1) {
+      if (strstr(cpu, "Niagara") != NULL) {
+        rv = true;
+      }
+      break;
+    }
+  }
+
+  fclose(fp);
+
+  return rv;
+}
+
+int VM_Version::platform_features(int features) {
+  // Default to generic v9
+  features = generic_v9_m;
+
+  if (detect_niagara()) {
+    NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Detected Linux on Niagara");)
+    features = niagara1_m;
+  }
+
+  return features;
+}