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/*
* Simple program to generate defines out of facility lists that use the bit
* numbering scheme from the Princples of Operations: most significant bit
* has bit number 0.
*
* Copyright IBM Corp. 2015
*
*/
#define S390_GEN_FACILITIES_C
#include <strings.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <asm/facilities_src.h>
static void print_facility_list(struct facility_def *def)
{
unsigned int high, bit, dword, i;
unsigned long long *array;
array = calloc(1, 8);
if (!array)
exit(EXIT_FAILURE);
high = 0;
for (i = 0; def->bits[i] != -1; i++) {
bit = 63 - (def->bits[i] & 63);
dword = def->bits[i] / 64;
if (dword > high) {
array = realloc(array, (dword + 1) * 8);
if (!array)
exit(EXIT_FAILURE);
memset(array + high + 1, 0, (dword - high) * 8);
high = dword;
}
array[dword] |= 1ULL << bit;
}
printf("#define %s ", def->name);
for (i = 0; i <= high; i++)
printf("_AC(0x%016llx,UL)%c", array[i], i < high ? ',' : '\n');
printf("#define %s_DWORDS %d\n", def->name, high + 1);
free(array);
}
static void print_facility_lists(void)
{
unsigned int i;
for (i = 0; i < sizeof(facility_defs) / sizeof(facility_defs[0]); i++)
print_facility_list(&facility_defs[i]);
}
int main(int argc, char **argv)
{
printf("#ifndef __ASM_S390_FACILITIES__\n");
printf("#define __ASM_S390_FACILITIES__\n");
printf("/*\n");
printf(" * DO NOT MODIFY.\n");
printf(" *\n");
printf(" * This file was generated by %s\n", __FILE__);
printf(" */\n\n");
printf("#include <linux/const.h>\n\n");
print_facility_lists();
printf("\n#endif\n");
return 0;
}
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