Mercurial > hg > truffle
diff src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | 6af0a709d52b |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,82 @@ +/* + * 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_solaris_sparc.cpp.incl" + +# include <sys/systeminfo.h> + +int VM_Version::platform_features(int features) { + // We determine what sort of hardware we have via sysinfo(SI_ISALIST, ...). + // This isn't the best of all possible ways because there's not enough + // detail in the isa list it returns, but it's a bit less arcane than + // generating assembly code and an illegal instruction handler. We used + // to generate a getpsr trap, but that's even more arcane. + // + // Another possibility would be to use sysinfo(SI_PLATFORM, ...), but + // that would require more knowledge here than is wise. + + // isalist spec via 'man isalist' as of 01-Aug-2001 + + char tmp; + size_t bufsize = sysinfo(SI_ISALIST, &tmp, 1); + char* buf = (char*)malloc(bufsize); + + if (buf != NULL) { + if (sysinfo(SI_ISALIST, buf, bufsize) == bufsize) { + // Figure out what kind of sparc we have + char *sparc_string = strstr(buf, "sparc"); + if (sparc_string != NULL) { features |= v8_instructions_m; + if (sparc_string[5] == 'v') { + if (sparc_string[6] == '8') { + if (sparc_string[7] == '-') features |= hardware_int_muldiv_m; + else if (sparc_string[7] == 'p') features |= generic_v9_m; + else features |= generic_v8_m; + } else if (sparc_string[6] == '9') features |= generic_v9_m; + } + } + + // Check for visualization instructions + char *vis = strstr(buf, "vis"); + if (vis != NULL) { features |= vis1_instructions_m; + if (vis[3] == '2') features |= vis2_instructions_m; + } + } + free(buf); + } + + bufsize = sysinfo(SI_MACHINE, &tmp, 1); + buf = (char*)malloc(bufsize); + + if (buf != NULL) { + if (sysinfo(SI_MACHINE, buf, bufsize) == bufsize) { + if (strstr(buf, "sun4v") != NULL) { + features |= sun4v_m; + } + } + free(buf); + } + + return features; +}