liboil/liboilcpu-misc.c

   1 /*
   2  * LIBOIL - Library of Optimized Inner Loops
   3  * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  17  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  19  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  20  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  21  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  23  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  24  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  25  * POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #ifdef HAVE_CONFIG_H
  29 #include "config.h"
  30 #endif
  31 #include <liboil/liboilfunction.h>
  32 #include <liboil/liboildebug.h>
  33 #include <liboil/liboilcpu.h>
  34 #include <liboil/liboilfault.h>
  35 #include <liboil/liboilutils.h>
  36
  37 #include <unistd.h>
  38 #include <fcntl.h>
  39 #include <stdlib.h>
  40 #include <string.h>
  41 #include <stdio.h>
  42 #include <setjmp.h>
  43 #include <signal.h>
  44 #include <sys/time.h>
  45 #include <time.h>
  46
  47 /***** alpha *****/
  48
  49 #if defined(__alpha__)
  50 static unsigned long
  51 oil_profile_stamp_alpha(void)
  52 {
  53   unsigned int ts;
  54   __asm__ __volatile__ ("rpcc %0\n" : "=r"(ts));
  55   return ts;
  56 }
  57
  58 static void
  59 oil_cpu_detect_alpha(void)
  60 {
  61   _oil_profile_stamp = oil_profile_stamp_alpha;
  62 }
  63 #endif
  64
  65 /***** ia64 *****/
  66
  67 #if defined(__ia64__)
  68 static unsigned long
  69 oil_profile_stamp_ia64(void)
  70 {
  71   unsigned int ts;
  72   __asm__ __volatile__("mov %0=ar.itc\n" : "=r"(ts) :: "memory");
  73   return ts;
  74 }
  75
  76 static void
  77 oil_cpu_detect_ia64(void)
  78 {
  79   _oil_profile_stamp = oil_profile_stamp_ia64;
  80 }
  81 #endif
  82
  83 /***** s390 *****/
  84
  85 #if defined(__s390__)
  86 static unsigned long
  87 oil_profile_stamp_s390(void)
  88 {
  89   uint64_t ts;
  90   __asm__ __volatile__ ("STCK %0(%0)\n" : : "r" (&ts));
  91   return ts;
  92 }
  93
  94 static void
  95 oil_cpu_detect_s390(void)
  96 {
  97   _oil_profile_stamp = oil_profile_stamp_s390;
  98 }
  99 #endif
 100
 101 /***** mips *****/
 102
 103 #if defined(__mips__)
 104 #if 0
 105 /* broken */
 106 static unsigned long
 107 oil_profile_stamp_mips(void)
 108 {
 109         unsigned int ts;
 110         __asm__ __volatile__ (
 111                 "       .set    push            \n"
 112                 "       .set    reorder         \n"
 113                 "       mfc0    %0,$9           \n"
 114                 "       .set    pop             \n"
 115         : "=m" (ts));
 116         return ts;
 117 }
 118 #endif
 119
 120 static void
 121 oil_cpu_detect_mips(void)
 122 {
 123   //_oil_profile_stamp = oil_profile_stamp_mips;
 124 }
 125 #endif
 126
 127 void
 128 oil_cpu_detect_arch(void)
 129 {
 130 #ifdef __alpha__
 131   oil_cpu_detect_alpha();
 132 #endif
 133 #ifdef __ia64__
 134   oil_cpu_detect_ia64();
 135 #endif
 136 #ifdef __s390__
 137   oil_cpu_detect_s390();
 138 #endif
 139 #ifdef __mips__
 140   oil_cpu_detect_mips();
 141 #endif
 142 }
 143