annotate 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
rev   line source
phh@122 1 /*
phh@122 2 * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
phh@122 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
phh@122 4 *
phh@122 5 * This code is free software; you can redistribute it and/or modify it
phh@122 6 * under the terms of the GNU General Public License version 2 only, as
phh@122 7 * published by the Free Software Foundation.
phh@122 8 *
phh@122 9 * This code is distributed in the hope that it will be useful, but WITHOUT
phh@122 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
phh@122 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
phh@122 12 * version 2 for more details (a copy is included in the LICENSE file that
phh@122 13 * accompanied this code).
phh@122 14 *
phh@122 15 * You should have received a copy of the GNU General Public License version
phh@122 16 * 2 along with this work; if not, write to the Free Software Foundation,
phh@122 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
phh@122 18 *
phh@122 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
phh@122 20 * CA 95054 USA or visit www.sun.com if you need additional information or
phh@122 21 * have any questions.
phh@122 22 *
phh@122 23 */
phh@122 24
phh@122 25 # include "incls/_precompiled.incl"
phh@122 26 # include "incls/_vm_version_linux_sparc.cpp.incl"
phh@122 27
phh@122 28 static bool detect_niagara() {
phh@122 29 char cpu[128];
phh@122 30 bool rv = false;
phh@122 31
phh@122 32 FILE* fp = fopen("/proc/cpuinfo", "r");
phh@122 33 if (fp == NULL) {
phh@122 34 return rv;
phh@122 35 }
phh@122 36
phh@122 37 while (!feof(fp)) {
phh@122 38 if (fscanf(fp, "cpu\t\t: %100[^\n]", &cpu) == 1) {
phh@122 39 if (strstr(cpu, "Niagara") != NULL) {
phh@122 40 rv = true;
phh@122 41 }
phh@122 42 break;
phh@122 43 }
phh@122 44 }
phh@122 45
phh@122 46 fclose(fp);
phh@122 47
phh@122 48 return rv;
phh@122 49 }
phh@122 50
phh@122 51 int VM_Version::platform_features(int features) {
phh@122 52 // Default to generic v9
phh@122 53 features = generic_v9_m;
phh@122 54
phh@122 55 if (detect_niagara()) {
phh@122 56 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Detected Linux on Niagara");)
phh@122 57 features = niagara1_m;
phh@122 58 }
phh@122 59
phh@122 60 return features;
phh@122 61 }