Mercurial > hg > truffle

comparison src/os_cpu/linux_sparc/vm/vm_version_linux_sparc.cpp @ 133:435e64505015

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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
comparison
equal deleted inserted replaced
122:ec73d88d5b43 133:435e64505015
1 /*
2 * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 # include "incls/_precompiled.incl"
26 # include "incls/_vm_version_linux_sparc.cpp.incl"
27
28 static bool detect_niagara() {
29 char cpu[128];
30 bool rv = false;
31
32 FILE* fp = fopen("/proc/cpuinfo", "r");
33 if (fp == NULL) {
34 return rv;
35 }
36
37 while (!feof(fp)) {
38 if (fscanf(fp, "cpu\t\t: %100[^\n]", &cpu) == 1) {
39 if (strstr(cpu, "Niagara") != NULL) {
40 rv = true;
41 }
42 break;
43 }
44 }
45
46 fclose(fp);
47
48 return rv;
49 }
50
51 int VM_Version::platform_features(int features) {
52 // Default to generic v9
53 features = generic_v9_m;
54
55 if (detect_niagara()) {
56 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Detected Linux on Niagara");)
57 features = niagara1_m;
58 }
59
60 return features;
61 }