get_ibuiltin_arch.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

Go to the source code of this file.

Macros
#define	_FCALL

Functions
int	parse_cpuinfo ()
void	get_ibuiltin_arch (int *iarch)
void	get_ibuiltin_arch_ (int *iarch)
void _FCALL	GET_IBUILTIN_ARCH (int *iarch)

Macro Definition Documentation

_FCALL

#define _FCALL

Definition at line 27 of file get_ibuiltin_arch.c.

Function Documentation

GET_IBUILTIN_ARCH()

void _FCALL GET_IBUILTIN_ARCH

(

int *

iarch

)

Definition at line 116 of file get_ibuiltin_arch.c.

                                         {
    get_ibuiltin_arch(iarch);
}

get_ibuiltin_arch()

void get_ibuiltin_arch

(

int *

iarch

)

Definition at line 89 of file get_ibuiltin_arch.c.

{
  int os_type,arch_type;
 
  os_type=OS_TYPE;
  arch_type=ARCH_TYPE;
 
  *iarch=0;
  switch (arch_type){
     case 1 : { if (os_type==1){
                      *iarch= parse_cpuinfo();
                }else {
                      *iarch= 4;
                      }
                } 
                break;
 
     case 2 : *iarch=3;break;
  }
 
  
}

get_ibuiltin_arch_()

void get_ibuiltin_arch_

(

int *

iarch

)

Definition at line 112 of file get_ibuiltin_arch.c.

                                   {
    get_ibuiltin_arch(iarch);
}

parse_cpuinfo()

int parse_cpuinfo

(

)

Definition at line 120 of file get_ibuiltin_arch.c.

                   {
 
  FILE * stream = NULL;
  char ligne[2049];
  char * compstr="flags     :";
  char * strptr;
  int unknown;
  int cmplen=strlen(compstr);
 
  int instruction_set=0;
 
  stream=fopen("/proc/cpuinfo","r");
  unknown = 1;
  while (fgets(ligne,2048,stream) && unknown){
    if (strncmp(compstr,ligne,cmplen)==0){
      unknown = 0;
      break;
    }
  }
  strptr = strstr(ligne,"avx512");
 
  if (strptr !=NULL){
      instruction_set=1;
  }else{ 
      strptr = strstr(ligne,"avx2");
      if (strptr !=NULL){
          instruction_set=0;
      }else{ 
          instruction_set=2;
      }
  }
 
 
return instruction_set;
}