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1.1 root 1: /*
2: * mkmakefile.c 1.10 81/05/18
3: * Functions in this file build the makefile from the files list
4: * and the information in the config table
5: */
6:
7: #include <stdio.h>
8: #include <ctype.h>
9: #include "y.tab.h"
10: #include "config.h"
11:
12: #define next_word(fp, wd)\
13: { register char *word = get_word(fp);\
14: if (word == WEOF) return EOF; \
15: else wd = word; }
16:
17: static struct file_list *fcur;
18:
19: /*
20: * fl_lookup
21: * look up a file name
22: */
23:
24: struct file_list *fl_lookup(file)
25: register char *file;
26: {
27: register struct file_list *fp;
28:
29: for (fp = ftab ; fp != NULL; fp = fp->f_next)
30: {
31: if (eq(fp->f_fn, file))
32: return fp;
33: }
34: return NULL;
35: }
36:
37: /*
38: * new_fent
39: * Make a new file list entry
40: */
41:
42: struct file_list *new_fent()
43: {
44: register struct file_list *fp;
45:
46: fp = (struct file_list *) malloc(sizeof *fp);
47: fp->f_needs = NULL;
48: fp->f_next = NULL;
49: if (fcur == NULL)
50: fcur = ftab = fp;
51: else
52: fcur->f_next = fp;
53: fcur = fp;
54: return fp;
55: }
56:
57: /*
58: * makefile:
59: * Build the makefile from the skeleton
60: */
61:
62: makefile()
63: {
64: FILE *ifp, *ofp;
65: char line[BUFSIZ];
66: struct cputype *cp;
67: struct opt *op;
68: char *raise();
69:
70: read_files(); /* Read in the "files" file */
71: ifp = fopen(GLOBAL("makefile"), "r");
72: if (ifp == NULL) {
73: perror(GLOBAL("makefile"));
74: exit(1);
75: }
76: ofp = fopen(LOCAL("makefile"), "w");
77: if (ofp == NULL) {
78: perror(LOCAL("makefile"));
79: exit(1);
80: }
81: fprintf(ofp, "IDENT=-D%s", raise(ident));
82: if (cputype == NULL) {
83: printf("cpu type must be specified\n");
84: exit(1);
85: }
86: for (cp = cputype; cp; cp = cp->cpu_next)
87: fprintf(ofp, " -D%s", cp->cpu_name);
88: for (op = opt; op; op = op->op_next)
89: fprintf(ofp, " -D%s", op->op_name);
90: fprintf(ofp, "\n");
91: if (hz == 0) {
92: #ifdef notdef
93: printf("hz not specified; 50hz assumed\n");
94: #endif
95: hz = 60;
96: }
97: if (hadtz == 0)
98: printf("timezone not specified; gmt assumed\n");
99: if (maxusers == 0) {
100: printf("maxusers not specified; 24 assumed\n");
101: maxusers = 24;
102: } else if (maxusers < 8) {
103: printf("minimum of 8 maxusers assumed\n");
104: maxusers = 8;
105: } else if (maxusers > 128) {
106: printf("maxusers truncated to 128\n");
107: maxusers = 128;
108: }
109: fprintf(ofp, "PARAM=-DHZ=%d -DTIMEZONE=%d -DDST=%d -DMAXUSERS=%d\n",
110: hz, timezone, dst, maxusers);
111: while(fgets(line, BUFSIZ, ifp) != NULL)
112: {
113: if (*line != '%')
114: {
115: fprintf(ofp, "%s", line);
116: continue;
117: }
118: else if (eq(line, "%OBJS\n"))
119: do_objs(ofp);
120: else if (eq(line, "%CFILES\n"))
121: do_cfiles(ofp);
122: else if (eq(line, "%RULES\n"))
123: do_rules(ofp);
124: else if (eq(line, "%LOAD\n"))
125: do_load(ofp);
126: else
127: fprintf(stderr, "Unknown %% construct in generic makefile: %s", line);
128: }
129: fclose(ifp);
130: fclose(ofp);
131: }
132:
133: /*
134: * files:
135: * Read in the "files" file.
136: * Store it in the ftab linked list
137: */
138:
139: read_files()
140: {
141:
142: ftab = NULL;
143: read_files_file(GLOBAL("files"), TRUE);
144: read_files_file(LOCAL("files"), FALSE);
145: }
146:
147: read_files_file(filename, must_exist)
148: char *filename;
149: {
150: FILE *fp;
151: register struct file_list *tp;
152: register struct device *dp;
153: register char *wd, *this;
154: int type;
155:
156: fp = fopen(filename, "r");
157: if (fp == NULL) {
158: if (must_exist) {
159: perror(filename);
160: exit(1);
161: } else
162: return;
163: }
164: while((wd = get_word(fp)) != WEOF)
165: {
166: if (wd == NULL)
167: continue;
168: this = ns(wd);
169: /*
170: * Read standard/optional
171: */
172: next_word(fp, wd);
173: if (wd == NULL)
174: {
175: fprintf(stderr, "Huh, no type for %s in files.\n", this);
176: exit(10);
177: }
178: if ((tp = fl_lookup(wd)) == NULL)
179: tp = new_fent();
180: else
181: free(tp->f_fn);
182: tp->f_fn = this;
183: type = 0;
184: if (eq(wd, "optional"))
185: {
186: next_word(fp, wd);
187: if (wd == NULL)
188: {
189: fprintf(stderr, "Needed a dev for optional(%s)\n", this);
190: exit(11);
191: }
192: tp->f_needs = ns(wd);
193: for (dp = dtab ; dp != NULL; dp = dp->d_next)
194: {
195: if (eq(dp->d_name, wd))
196: break;
197: }
198: if (dp == NULL)
199: type = INVISIBLE;
200: }
201: next_word(fp, wd);
202: if (type == 0 && wd != NULL)
203: type = DEVICE;
204: else if (type == 0)
205: type = NORMAL;
206: tp->f_type = type;
207: }
208: fclose(fp);
209: }
210:
211: /*
212: * do_objs
213: * Spew forth the OBJS definition
214: */
215:
216: do_objs(fp)
217: FILE *fp;
218: {
219: register struct file_list *tp;
220: register int lpos, len;
221: register char *cp, och, *sp;
222: char *tail();
223:
224: fprintf(fp, "OBJS=");
225: lpos = 6;
226: for (tp = ftab; tp != NULL; tp = tp->f_next)
227: {
228: if (tp->f_type == INVISIBLE)
229: continue;
230: sp = tail(tp->f_fn);
231: cp = sp + (len = strlen(sp)) - 1;
232: och = *cp;
233: *cp = 'o';
234: if (len + lpos > 72)
235: {
236: lpos = 8;
237: fprintf(fp, "\\\n\t");
238: }
239: fprintf(fp, "%s ", sp);
240: lpos += len + 1;
241: *cp = och;
242: }
243: if (lpos != 8)
244: putc('\n', fp);
245: }
246:
247: /*
248: * do_cfiles
249: * Spew forth the CFILES definition
250: */
251:
252: do_cfiles(fp)
253: FILE *fp;
254: {
255: register struct file_list *tp;
256: register int lpos, len;
257:
258: fprintf(fp, "CFILES=");
259: lpos = 8;
260: for (tp = ftab; tp != NULL; tp = tp->f_next)
261: {
262: if (tp->f_type == INVISIBLE)
263: continue;
264: if (tp->f_fn[strlen(tp->f_fn)-1] != 'c')
265: continue;
266: if ((len = 3 + strlen(tp->f_fn)) + lpos > 72)
267: {
268: lpos = 8;
269: fprintf(fp, "\\\n\t");
270: }
271: fprintf(fp, "../%s ", tp->f_fn);
272: lpos += len + 1;
273: }
274: if (lpos != 8)
275: putc('\n', fp);
276: }
277:
278: /*
279: * tail:
280: * Return tail end of a filename
281: */
282:
283: char *tail(fn)
284: char *fn;
285: {
286: register char *cp;
287: char *rindex();
288:
289: cp = rindex(fn, '/');
290: return cp+1;
291: }
292:
293: /*
294: * do_rules:
295: * Spit out the rules for making each file
296: */
297:
298: do_rules(f)
299: FILE *f;
300: {
301: register char *cp, *np, och, *tp;
302: register struct file_list *ftp;
303:
304: for (ftp = ftab; ftp != NULL; ftp = ftp->f_next)
305: {
306: if (ftp->f_type == INVISIBLE)
307: continue;
308: cp = (np = ftp->f_fn) + strlen(ftp->f_fn) - 1;
309: och = *cp;
310: *cp = '\0';
311: fprintf(f, "%so: ../%s%c\n", tail(np), np, och);
312: tp = tail(np);
313: if (och == 's')
314: fprintf(f, "\t${AS} -o %so ../%ss\n\n", tp, np);
315: else if (ftp->f_type == NORMAL)
316: {
317: fprintf(f, "\t${CC} -I. -c -S ${COPTS} ../%sc\n", np);
318: fprintf(f, "\t${C2} %ss | sed -f ../sys/asm.sed | ${AS} -o %so\n",
319: tp, tp);
320: fprintf(f, "\trm -f %ss\n\n", tp);
321: }
322: else if (ftp->f_type == DEVICE)
323: {
324: fprintf(f, "\t${CC} -I. -c -S ${COPTS} ../%sc\n", np);
325: fprintf(f,"\t${C2} -i %ss | sed -f ../sys/asm.sed | ${AS} -o %so\n",
326: tp, tp);
327: fprintf(f, "\trm -f %ss\n\n", tp);
328: }
329: else
330: fprintf(stderr, "Don't know rules for %s", np);
331: *cp = och;
332: }
333: }
334:
335: /*
336: * Create the load strings
337: */
338:
339: do_load(f)
340: register FILE *f;
341: {
342: register struct file_list *fl;
343: register bool first = TRUE;
344:
345: for (fl = conf_list; fl != NULL; fl = fl->f_next)
346: {
347: fprintf(f, "%s: makefile locore.o ${OBJS} ioconf.o conf.o param.o swap%s.o\n",
348: fl->f_needs, fl->f_fn);
349: fprintf(f, "\t@echo loading %s\n\t@rm -f %s\n",
350: fl->f_needs, fl->f_needs);
351: if (first)
352: {
353: first = FALSE;
354: fprintf(f, "\t@sh ../conf/newvers.sh\n");
355: fprintf(f, "\t@cc $(CFLAGS) -c vers.c\n");
356: }
357: fprintf(f,
358: "\t@ld -n -o %s -e start -x -T 80000000 locore.o ${OBJS} vers.o ioconf.o conf.o param.o swap%s.o\n",
359: fl->f_needs, fl->f_fn);
360: fprintf(f, "\t@size %s\n", fl->f_needs);
361: fprintf(f, "\t@chmod 755 %s\n\n", fl->f_needs);
362: }
363: for (fl = conf_list; fl != NULL; fl = fl->f_next)
364: {
365: fprintf(f, "swap%s.o: ../dev/swap%s.c\n", fl->f_fn, fl->f_fn);
366: fprintf(f, "\t${CC} -I. -c -S ${COPTS} ../dev/swap%s.c\n", fl->f_fn);
367: fprintf(f,
368: "\t${C2} swap%s.s | sed -f ../sys/asm.sed | ${AS} -o swap%s.o\n",
369: fl->f_fn, fl->f_fn);
370: fprintf(f, "\trm -f swap%s.s\n\n", fl->f_fn);
371: }
372: fprintf(f, "all:");
373: for (fl = conf_list; fl != NULL; fl = fl->f_next)
374: fprintf(f, " %s", fl->f_needs);
375: putc('\n', f);
376: }
377:
378: char *
379: raise(str)
380: register char *str;
381: {
382: register char *cp = str;
383:
384: while(*str)
385: {
386: if (islower(*str))
387: *str = toupper(*str);
388: str++;
389: }
390: return cp;
391: }
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