Mercurial > hg > truffle
diff src/os_cpu/linux_sparc/vm/vm_version_linux_sparc.cpp @ 133:435e64505015
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; +}