Commit | Line | Data |
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28c97a66 | 1 | static char sccsid[] = "@(#)sub.c 4.2 %G%"; |
1c71ee4a BJ |
2 | #include "head.h" |
3 | #include <a.out.h> | |
4 | #include <stab.h> | |
5 | #include "cdefs.h" | |
6 | #include <stdio.h> | |
7 | struct user u; | |
8 | ||
9 | char * | |
10 | readline(f) | |
11 | FILE *f; { | |
12 | static char buff[128]; | |
13 | ||
14 | register char *p; | |
15 | register int i; | |
16 | ||
17 | p = buff; | |
18 | do { | |
19 | if ((i = getc(f)) == EOF) { | |
20 | *p++ = '\004'; | |
21 | *p = '\n'; | |
22 | } | |
23 | else *p = i; | |
24 | } while (*p++ != '\n'); | |
25 | ||
26 | return(buff); | |
27 | } | |
28 | ||
29 | char * | |
30 | cpname(p, q) | |
31 | char *p, *q; { | |
32 | while(varchar(*q) || number(*q)) | |
33 | *p++ = *q++; | |
34 | *p = '\0'; | |
35 | return(q); | |
36 | } | |
37 | ||
38 | char * | |
39 | cpall(p, q) | |
40 | char *p, *q; { | |
41 | while (*q != '\n') | |
42 | *p++ = *q++; | |
43 | *p = '\0'; | |
44 | return(q); | |
45 | } | |
46 | ||
47 | eqany(c, s) | |
48 | char c, *s; { | |
49 | while(*s != '\0') | |
50 | if (c == *s++) return(1); | |
51 | return(0); | |
52 | } | |
53 | ||
54 | error(s) | |
55 | char *s; { | |
56 | printf("%s\n", s); | |
57 | } | |
58 | ||
59 | char * | |
60 | cpstr(p,q) | |
61 | char *p, *q; { | |
62 | do { | |
63 | *p++ = *q++; | |
64 | } while (*q != '\0'); | |
65 | *p = '\0'; | |
66 | } | |
67 | L_INT | |
68 | round(a,b) | |
69 | REG L_INT a, b; | |
70 | { | |
71 | REG L_INT w; | |
72 | w = (a/b)*b; | |
73 | IF a!=w THEN w += b; FI | |
74 | return(w); | |
75 | } | |
76 | ||
77 | /* error handling */ | |
78 | ||
79 | chkerr() | |
80 | { | |
81 | IF errflg ORF mkfault | |
82 | THEN error(errflg); | |
83 | longjmp(env, 0); | |
84 | FI | |
85 | } | |
86 | ||
87 | eqstr(s1, s2) | |
88 | REG STRING s1, s2; | |
89 | { | |
90 | #ifndef FLEXNAMES | |
91 | REG STRING es1; | |
92 | #endif | |
93 | if (s2 == (STRING) -1) return(0); | |
94 | #ifndef FLEXNAMES | |
95 | es1 = s1+8; | |
96 | #endif | |
97 | WHILE *s1++ == *s2 | |
98 | #ifndef FLEXNAMES | |
99 | DO IF *s2++ == 0 ORF s1>=es1 | |
100 | #else | |
101 | DO IF *s2++ == 0 | |
102 | #endif | |
103 | THEN return(1); | |
104 | FI | |
105 | OD | |
106 | return(0); | |
107 | } | |
108 | ||
109 | longseek(f, a) | |
110 | L_INT a; | |
111 | { | |
112 | return(lseek(f,(long) a,0) != -1); | |
113 | } | |
114 | ||
115 | ||
116 | /* descriptor format to length */ | |
117 | dtol(d) | |
118 | char d; { | |
119 | switch(d) { | |
120 | ||
121 | case 'a': | |
122 | case 's': | |
123 | return(0); | |
124 | ||
125 | case 'b': | |
126 | case 'c': | |
127 | return(1); | |
128 | ||
129 | case 'h': | |
130 | return(2); | |
131 | ||
132 | case 'l': | |
133 | case 'f': | |
134 | return(4); | |
135 | ||
136 | case 'g': | |
137 | return(8); | |
138 | ||
139 | default: | |
140 | return(WORDSIZE); | |
141 | } | |
142 | } | |
143 | ||
144 | /* | |
145 | * checks equality of pattern pat with str, | |
146 | * assuming str is tructaed at length 8 | |
147 | */ | |
148 | eqpat(pat, str) | |
149 | char *pat, *str; { | |
150 | #ifndef FLEXNAMES | |
151 | return(eqpatr(pat, str, 0)); | |
152 | #else | |
153 | return(eqpatr(pat, str)); | |
154 | #endif | |
155 | } | |
156 | ||
157 | #ifndef FLEXNAMES | |
158 | eqpatr(pat, str, cnt) | |
159 | #else | |
160 | eqpatr(pat, str) | |
161 | #endif | |
162 | char *pat, *str; { | |
163 | register int i; | |
164 | register char p, s; | |
165 | ||
166 | p = pat[0]; | |
167 | s = str[0]; | |
168 | #ifndef FLEXNAMES | |
169 | if (cnt == 8) return(1); | |
170 | #endif | |
171 | if (p == '?') { | |
172 | if (s == '\0') return(0); | |
173 | #ifndef FLEXNAMES | |
174 | return(eqpatr(pat+1, str+1, cnt+1)); | |
175 | #else | |
176 | return(eqpatr(pat+1, str+1)); | |
177 | #endif | |
178 | } | |
179 | if (p == '*') { | |
180 | if (pat[1] == '\0') return(1); | |
181 | #ifndef FLEXNAMES | |
182 | for(i=1; i<8-cnt; i++) { | |
183 | if (eqpatr(pat+1, str+i, cnt+i)) return(1); | |
184 | #else | |
185 | for(i=1; ; i++) { | |
186 | if (eqpatr(pat+1, str+i)) return(1); | |
187 | #endif | |
188 | if (str[i] == '\0') return(0); | |
189 | } | |
190 | #ifndef FLEXNAMES | |
191 | return(0); | |
192 | #else | |
193 | /*NOTREACHED*/ | |
194 | #endif | |
195 | } | |
196 | if ((eqany(p, ".[->") || p == '\0') && s == '\0') return(1); | |
197 | if (p != s) return(0); | |
198 | #ifndef FLEXNAMES | |
199 | return(eqpatr(pat+1, str+1, cnt+1)); | |
200 | #else | |
201 | return(eqpatr(pat+1, str+1)); | |
202 | #endif | |
203 | } | |
204 | ||
205 | /* gets indirect address for pointers and subscripts */ | |
206 | getindir(class, addr, type) | |
28c97a66 | 207 | u_char class; |
1c71ee4a BJ |
208 | ADDR addr; { |
209 | if (ISARY(type)) return(addr); | |
210 | if (class == N_RSYM) | |
211 | return(*(ADDR *)(((ADDR) &u) + R0 + (WORDSIZE)*addr)); | |
212 | return(getval(addr, 'd', DSP)); | |
213 | } | |
214 | ||
215 | long | |
216 | readint(p) | |
217 | char **p; { | |
218 | int sign; | |
219 | ||
220 | if (**p == '-') { | |
221 | sign = -1; | |
222 | (*p)++; | |
223 | } else { | |
224 | sign = 1; | |
225 | } | |
226 | if (**p == '0') { | |
227 | (*p)++; | |
228 | if (**p == 'x' || **p == 'X') { | |
229 | (*p)++; | |
230 | return(sign * rint(p, 16, hexdigit, hexconv)); | |
231 | } | |
232 | else return(sign * rint(p, 8, octdigit, octconv)); | |
233 | } | |
234 | else return(sign * rint(p, 10, decdigit, decconv)); | |
235 | } | |
236 | ||
237 | long | |
238 | rint(p, base, digit, conv) | |
239 | char **p; | |
240 | int (*digit)(), (*conv)(); { | |
241 | long value; | |
242 | ||
243 | value = 0; | |
244 | while ((*digit)(**p)) value = base*value + (*conv)(*(*p)++); | |
245 | return(value); | |
246 | } | |
247 | ||
248 | octdigit(c) | |
249 | char c; { | |
250 | return(c >= '0' && c <= '7'); | |
251 | } | |
252 | ||
253 | octconv(c) | |
254 | char c; { | |
255 | return(c - '0'); | |
256 | } | |
257 | ||
258 | decdigit(c) | |
259 | char c; { | |
260 | return(c >= '0' && c <= '9'); | |
261 | } | |
262 | ||
263 | decconv(c) | |
264 | char c; { | |
265 | return(c - '0'); | |
266 | } | |
267 | ||
268 | hexdigit(c) | |
269 | char c; { | |
270 | return((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || | |
271 | (c >= 'A' && c <= 'F')); | |
272 | } | |
273 | ||
274 | hexconv(c) | |
275 | char c; { | |
276 | if (c >= '0' && c <= '9') return(c - '0'); | |
277 | if (c >= 'a' && c <= 'f') return(c - 'a' + 10); | |
278 | if (c >= 'A' && c <= 'F') return(c - 'A' + 10); | |
279 | error("hex conversion error"); | |
280 | return(0); | |
281 | } | |
282 | ||
283 | /* decodes number, character or variable */ | |
284 | long | |
285 | argvalue(p) | |
286 | char *p; { | |
287 | register char ch; | |
288 | register long value; | |
289 | register ADDR j; | |
290 | char var[30]; | |
291 | ||
292 | ch = *p; | |
293 | if (ch == '\'') { | |
294 | value = *(p+1); | |
295 | } else if ((ch >= '0' && ch <= '9') || ch == '-') { | |
296 | value = readint(&p); | |
297 | } else if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || | |
298 | ch == '_') { | |
299 | cpname(var, p); | |
300 | j = varaddr(curproc()->pname, var); | |
301 | if (j == -1) { | |
302 | printf("Unknown variable: %s\n", argsp); | |
303 | return(-1); | |
304 | } | |
305 | value = getval(j, typetodesc(sl_type, 0)[0], DSP); | |
306 | do { | |
307 | p++; | |
308 | } while (varchar(*p) || number(*p)); | |
309 | } | |
310 | return(value); | |
311 | } | |
312 | ||
313 | prhex(v) | |
314 | long v; { | |
315 | if (v < 0) { | |
316 | v = -v; | |
317 | printf("-"); | |
318 | } | |
319 | if (v <= 9) | |
320 | printf("%d", v); | |
321 | else | |
322 | printf("0x%x", v); | |
323 | } | |
324 | ||
325 | /* print hex number in field of length 12 */ | |
326 | prhex12(v) | |
327 | long v; { | |
328 | if (v >= -9 && v <= 9) | |
329 | printf("%-12d", v); | |
330 | else | |
331 | printf("0x%-12x", v); | |
332 | } | |
333 | ||
334 | /* print line number followed by offset */ | |
335 | prlnoff(procp, v) | |
336 | struct proct *procp; ADDR v; { | |
337 | int lineno, diff; | |
338 | char *name; | |
339 | name = procp->pname; | |
340 | if (name[0] == '_') { | |
341 | #ifndef FLEXNAMES | |
342 | printf("%.7s", name+1); | |
343 | #else | |
344 | printf("%s", name+1); | |
345 | #endif | |
346 | lineno = -1; | |
347 | } else { | |
348 | #ifndef FLEXNAMES | |
349 | printf("%8s", name); | |
350 | #else | |
351 | printf("%s", name); | |
352 | #endif | |
353 | lineno = adrtolineno((ADDR) v); | |
354 | } | |
355 | if (lineno == -1) | |
356 | diff = v - procp->paddr; | |
357 | else { | |
358 | printf(":%d", lineno); | |
359 | diff = v - lnfaddr; /* set by adrtolineno() */ | |
360 | } | |
361 | if (diff) { | |
362 | printf("+"); | |
363 | prhex(diff); | |
364 | } | |
365 | } |