mono/utils/mono-hwcap-sparc.c

   1 /*
   2  * mono-hwcap-sparc.c: SPARC hardware feature detection
   3  *
   4  * Authors:
   5  *    Alex Rønne Petersen (alexrp@xamarin.com)
   6  *    Elijah Taylor (elijahtaylor@google.com)
   7  *    Miguel de Icaza (miguel@xamarin.com)
   8  *    Neale Ferguson (Neale.Ferguson@SoftwareAG-usa.com)
   9  *    Paolo Molaro (lupus@xamarin.com)
  10  *    Rodrigo Kumpera (kumpera@gmail.com)
  11  *    Sebastien Pouliot (sebastien@xamarin.com)
  12  *    Zoltan Varga (vargaz@xamarin.com)
  13  *
  14  * Copyright 2003 Ximian, Inc.
  15  * Copyright 2003-2011 Novell, Inc
  16  * Copyright 2006 Broadcom
  17  * Copyright 2007-2008 Andreas Faerber
  18  * Copyright 2011-2013 Xamarin Inc
  19  * Licensed under the MIT license. See LICENSE file in the project root for full license information.
  20  */
  21
  22 #include "mono/utils/mono-hwcap.h"
  23
  24 #include <string.h>
  25 #if !defined(__linux__)
  26 #include <sys/systeminfo.h>
  27 #else
  28 #include <unistd.h>
  29 #endif
  30
  31 void
  32 mono_hwcap_arch_init (void)
  33 {
  34         char buf [1024];
  35
  36 #if !defined(__linux__)
  37         g_assert (sysinfo (SI_ISALIST, buf, 1024));
  38 #else
  39         /* If the page size is 8192, we're on a 64-bit SPARC, which
  40          * in turn means a v9 or better.
  41          */
  42         if (getpagesize () == 8192)
  43                 strcpy (buf, "sparcv9");
  44         else
  45                 strcpy (buf, "sparcv8");
  46 #endif
  47
  48         mono_hwcap_sparc_is_v9 = strstr (buf, "sparcv9");
  49 }