generate.c revision 1.2 
1/* $OpenBSD: generate.c,v 1.2 2001/03/02 16:57:26 espie Exp $ */
2/* Written by Marc Espie 1999.
3 * Public domain.
4 */
5
6#include <stdio.h>
7#include <stdlib.h>
8#include <stddef.h>
9
10#include "make.h"
11#include "ohash.h"
12#include "error.h"
13
14#define M(x)	x, #x
15char *table[] = {
16	M(TARGET),
17	M(OODATE),
18	M(ALLSRC),
19	M(IMPSRC),
20	M(PREFIX),
21	M(ARCHIVE),
22	M(MEMBER),
23	M(LONGTARGET),
24	M(LONGOODATE),
25	M(LONGALLSRC),
26	M(LONGIMPSRC),
27	M(LONGPREFIX),
28	M(LONGARCHIVE),
29	M(LONGMEMBER)
30};
31
32
33int
34main(int argc, char *argv[])
35{
36	u_int32_t i;
37	u_int32_t v;
38	u_int32_t h;
39	u_int32_t slots;
40	const char *e;
41	char **occupied;
42
43#ifdef HAS_STATS
44	Init_Stats();
45#endif
46	if (argc < 2)
47		exit(1);
48
49	slots = atoi(argv[1]);
50	if (!slots)
51		exit(1);
52	occupied = emalloc(sizeof(char *) * slots);
53	for (i = 0; i < slots; i++)
54		occupied[i] = NULL;
55
56	printf("/* Generated file, do not edit */\n");
57	for (i = 0; i < sizeof(table)/sizeof(char *); i++) {
58		e = NULL;
59		v = ohash_interval(table[i], &e);
60		h = v % slots;
61		if (occupied[h]) {
62			fprintf(stderr, "Collision: %s / %s (%d)\n", occupied[h],
63				table[i], h);
64			exit(1);
65		}
66		occupied[h] = table[i++];
67		printf("#define K_%s %u\n", table[i], v);
68	}
69	printf("#define MAGICSLOTS %u\n", slots);
70	exit(0);
71}
72
73