Mercurial > hg > graal-compiler
annotate src/os_cpu/linux_sparc/vm/vm_version_linux_sparc.cpp @ 4723:9232e0ecbc2c jdk8-b19
Added tag hs23-b09 for changeset 4bcf61041217
author | amurillo |
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date | Fri, 23 Dec 2011 15:24:44 -0800 |
parents | f95d63e2154a |
children | a0ea36509b7b |
rev | line source |
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133 | 1 /* |
1972 | 2 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. |
133 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
133 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "runtime/os.hpp" | |
27 #include "vm_version_sparc.hpp" | |
133 | 28 |
29 static bool detect_niagara() { | |
30 char cpu[128]; | |
31 bool rv = false; | |
32 | |
33 FILE* fp = fopen("/proc/cpuinfo", "r"); | |
34 if (fp == NULL) { | |
35 return rv; | |
36 } | |
37 | |
38 while (!feof(fp)) { | |
39 if (fscanf(fp, "cpu\t\t: %100[^\n]", &cpu) == 1) { | |
40 if (strstr(cpu, "Niagara") != NULL) { | |
41 rv = true; | |
42 } | |
43 break; | |
44 } | |
45 } | |
46 | |
47 fclose(fp); | |
48 | |
49 return rv; | |
50 } | |
51 | |
52 int VM_Version::platform_features(int features) { | |
53 // Default to generic v9 | |
54 features = generic_v9_m; | |
55 | |
56 if (detect_niagara()) { | |
57 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Detected Linux on Niagara");) | |
58 features = niagara1_m; | |
59 } | |
60 | |
61 return features; | |
62 } |