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/*
kinfo.c: A small program that includes several kernel heades
and builds a header defining options for 3dfx_driver.c.
1999/12/22 Joseph Kain <joseph@3dfx.com>
* Initial version
*/
#include <stdio.h>
/* These include files will bring in the information we need */
#include <linux/autoconf.h>
#include <linux/version.h>
int
main (int argc, char **argv)
{
/* Here is the strategy. The old Makefile would have grepped the kernel
* headers and put these defines on the command line. Now we include
* the kernel headers and extract the information. Then we create a
* new header with all of the options we need. */
if (argc == 1)
{
FILE *f = fopen ("kinfo.h", "w");
FILE *p = NULL;
int result;
char temp[1000];
#ifdef CONFIG_MTRR
/* It is not enough to just check if the kernel supports MTRRs, if the
* processor doesn't have MTRRs then its possible (and likely) that
* the kernel was still compiled with MTRR support. So we also have to
* check the processor has MTRRs. */
result = system ("grep mtrr /proc/cpuinfo > /dev/null");
/* See if grep found anything */
if (result == 0) /* Grep reported a match */
{
fprintf (f, "#define HAVE_MTRR\n");
}
#endif
#ifdef CONFIG_SMP
fprintf (f, "#define __SMP__\n");
#endif
#ifdef CONFIG_MODVERSIONS
fprintf (f, "#define MODVERSIONS\n");
#endif
fclose (f);
}
else
{
if (strcmp (argv[1], "--UTS") == 0)
{
printf ("%s", UTS_RELEASE);
}
}
}
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