Commit | Line | Data |
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c906108c SS |
1 | /* Test passing of arguments to functions. Use various sorts of arguments, |
2 | including basic types, pointers to those types, structures, lots of | |
3 | args, etc, in various combinations. */ | |
4 | ||
5 | /* AIX requires this to be the first thing in the file. */ | |
6 | #ifdef __GNUC__ | |
7 | # define alloca __builtin_alloca | |
8 | # define HAVE_STACK_ALLOCA 1 | |
9 | #else /* not __GNUC__ */ | |
10 | # ifdef _AIX | |
11 | #pragma alloca | |
12 | # define HAVE_STACK_ALLOCA 1 | |
13 | # else /* Not AIX */ | |
14 | # ifdef sparc | |
15 | # include <alloca.h> | |
16 | # define HAVE_STACK_ALLOCA 1 | |
17 | # ifdef __STDC__ | |
18 | void *alloca (); | |
19 | # else | |
20 | char *alloca (); | |
21 | # endif /* __STDC__ */ | |
22 | # endif /* sparc */ | |
23 | # endif /* Not AIX */ | |
24 | #endif /* not __GNUC__ */ | |
25 | ||
26 | char c = 'a'; | |
27 | char *cp = &c; | |
28 | ||
29 | unsigned char uc = 'b'; | |
30 | unsigned char *ucp = &uc; | |
31 | ||
32 | short s = 1; | |
33 | short *sp = &s; | |
34 | ||
35 | unsigned short us = 6; | |
36 | unsigned short *usp = &us; | |
37 | ||
38 | int i = 2; | |
39 | int *ip = &i; | |
40 | ||
41 | unsigned int ui = 7; | |
42 | unsigned int *uip = &ui; | |
43 | ||
44 | long l = 3; | |
45 | long *lp = &l; | |
46 | ||
47 | unsigned long ul = 8; | |
48 | unsigned long *ulp = &ul; | |
49 | ||
50 | float f = 4.0; | |
51 | float *fp = &f; | |
52 | ||
53 | double d = 5.0; | |
54 | double *dp = &d; | |
55 | ||
56 | struct stag { | |
57 | int s1; | |
58 | int s2; | |
59 | } st = { 101, 102 }; | |
60 | struct stag *stp = &st; | |
61 | ||
62 | union utag { | |
63 | int u1; | |
64 | long u2; | |
65 | } un; | |
66 | union utag *unp = &un; | |
67 | ||
68 | char carray[] = {'a', 'n', ' ', 'a', 'r', 'r', 'a', 'y', '\0'}; | |
69 | ||
70 | ||
71 | /* Test various permutations and interleaving of integral arguments */ | |
72 | ||
73 | ||
74 | call0a (c, s, i, l) | |
75 | char c; short s; int i; long l; | |
76 | { | |
77 | c = 'a'; | |
78 | s = 5; | |
79 | i = 6; | |
80 | l = 7; | |
81 | } | |
82 | ||
83 | call0b (s, i, l, c) | |
84 | short s; int i; long l; char c; | |
85 | { | |
86 | s = 6; i = 7; l = 8; c = 'j'; | |
87 | } | |
88 | ||
89 | call0c (i, l, c, s) | |
90 | int i; long l; char c; short s; | |
91 | { | |
92 | i = 3; l = 4; c = 'k'; s = 5; | |
93 | } | |
94 | ||
95 | call0d (l, c, s, i) | |
96 | long l; char c; short s; int i; | |
97 | { | |
98 | l = 7; c = 'z'; s = 8; i = 9; | |
99 | } | |
100 | ||
101 | call0e (c1, l, c2, i, c3, s, c4, c5) | |
102 | char c1; long l; char c2; int i; char c3; short s; char c4; char c5; | |
103 | { | |
104 | c1 = 'a'; l = 5; c2 = 'b'; i = 7; c3 = 'c'; s = 7; c4 = 'f'; c5 = 'g'; | |
105 | } | |
106 | ||
107 | ||
108 | /* Test various permutations and interleaving of unsigned integral arguments */ | |
109 | ||
110 | ||
111 | call1a (uc, us, ui, ul) | |
112 | unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul; | |
113 | { | |
114 | uc = 5; us = 6; ui = 7; ul = 8; | |
115 | } | |
116 | ||
117 | call1b (us, ui, ul, uc) | |
118 | unsigned short us; unsigned int ui; unsigned long ul; unsigned char uc; | |
119 | { | |
120 | uc = 5; us = 6; ui = 7; ul = 8; | |
121 | } | |
122 | ||
123 | call1c (ui, ul, uc, us) | |
124 | unsigned int ui; unsigned long ul; unsigned char uc; unsigned short us; | |
125 | { | |
126 | uc = 5; us = 6; ui = 7; ul = 8; | |
127 | } | |
128 | ||
129 | call1d (ul, uc, us, ui) | |
130 | unsigned long ul; unsigned char uc; unsigned short us; unsigned int ui; | |
131 | { | |
132 | uc = 5; us = 6; ui = 7; ul = 8; | |
133 | } | |
134 | ||
135 | call1e (uc1, ul, uc2, ui, uc3, us, uc4, uc5) | |
136 | unsigned char uc1; unsigned long ul; unsigned char uc2; unsigned int ui; | |
137 | unsigned char uc3; unsigned short us; unsigned char uc4; unsigned char uc5; | |
138 | { | |
139 | uc1 = 5; ul = 7; uc2 = 8; ui = 9; uc3 = 10; us = 11; uc4 = 12; uc5 = 55; | |
140 | } | |
141 | ||
142 | /* Test various permutations and interleaving of integral arguments with | |
143 | floating point arguments. */ | |
144 | ||
145 | ||
146 | call2a (c, f1, s, d1, i, f2, l, d2) | |
147 | char c; float f1; short s; double d1; int i; float f2; long l; double d2; | |
148 | { | |
149 | c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2; | |
150 | } | |
151 | ||
152 | call2b (f1, s, d1, i, f2, l, d2, c) | |
153 | float f1; short s; double d1; int i; float f2; long l; double d2; char c; | |
154 | { | |
155 | c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2; | |
156 | } | |
157 | ||
158 | call2c (s, d1, i, f2, l, d2, c, f1) | |
159 | short s; double d1; int i; float f2; long l; double d2; char c; float f1; | |
160 | { | |
161 | c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2; | |
162 | } | |
163 | ||
164 | call2d (d1, i, f2, l, d2, c, f1, s) | |
165 | double d1; int i; float f2; long l; double d2; char c; float f1; short s; | |
166 | { | |
167 | c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2; | |
168 | } | |
169 | ||
170 | call2e (i, f2, l, d2, c, f1, s, d1) | |
171 | int i; float f2; long l; double d2; char c; float f1; short s; double d1; | |
172 | { | |
173 | c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2; | |
174 | } | |
175 | ||
176 | call2f (f2, l, d2, c, f1, s, d1, i) | |
177 | float f2; long l; double d2; char c; float f1; short s; double d1; int i; | |
178 | { | |
179 | c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2; | |
180 | } | |
181 | ||
182 | call2g (l, d2, c, f1, s, d1, i, f2) | |
183 | long l; double d2; char c; float f1; short s; double d1; int i; float f2; | |
184 | { | |
185 | c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2; | |
186 | } | |
187 | ||
188 | call2h (d2, c, f1, s, d1, i, f2, l) | |
189 | double d2; char c; float f1; short s; double d1; int i; float f2; long l; | |
190 | { | |
191 | c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2; | |
192 | } | |
193 | ||
194 | call2i (c1, f1, c2, c3, d1, c4, c5, c6, f2, s, c7, d2) | |
195 | char c1; float f1; char c2; char c3; double d1; char c4; char c5; char c6; | |
196 | float f2; short s; char c7; double d2; | |
197 | { | |
198 | c1 = 'a'; f1 = 0.0; c2 = 5; d1 = 0.0; c3 = 6; f2 = 0.1; c4 = 7; d2 = 0.2; | |
199 | c5 = 's'; c6 = 'f'; c7 = 'z'; s = 77; | |
200 | } | |
201 | ||
202 | ||
203 | /* Test pointers to various integral and floating types. */ | |
204 | ||
205 | ||
206 | call3a (cp, sp, ip, lp) | |
207 | char *cp; short *sp; int *ip; long *lp; | |
208 | { | |
209 | cp = 0; sp = 0; ip = 0; lp = 0; | |
210 | } | |
211 | ||
212 | call3b (ucp, usp, uip, ulp) | |
213 | unsigned char *ucp; unsigned short *usp; unsigned int *uip; | |
214 | unsigned long *ulp; | |
215 | { | |
216 | ucp = 0; usp = 0; uip = 0; ulp = 0; | |
217 | } | |
218 | ||
219 | call3c (fp, dp) | |
220 | float *fp; double *dp; | |
221 | { | |
222 | fp = 0; dp = 0; | |
223 | } | |
224 | ||
225 | ||
226 | /* Test passing structures and unions by reference. */ | |
227 | ||
228 | ||
229 | call4a (stp) | |
230 | struct stag *stp; { | |
231 | stp = 0;} | |
232 | ||
233 | call4b (unp) | |
234 | union utag *unp; | |
235 | { | |
236 | unp = 0; | |
237 | } | |
238 | ||
239 | ||
240 | /* Test passing structures and unions by value. */ | |
241 | ||
242 | ||
243 | call5a (st) | |
244 | struct stag st; {st.s1 = 5;} | |
245 | ||
246 | call5b (un) | |
247 | union utag un; {un.u1 = 7;} | |
248 | ||
249 | ||
250 | /* Test shuffling of args */ | |
251 | ||
252 | ||
253 | call6a (c, s, i, l, f, d, uc, us, ui, ul) | |
254 | char c; short s; int i; long l; float f; double d; | |
255 | unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul; | |
256 | { | |
257 | c = c; | |
258 | call6b (s, i, l, f, d, uc, us, ui, ul); | |
259 | } | |
260 | ||
261 | call6b (s, i, l, f, d, uc, us, ui, ul) | |
262 | short s; int i; long l; float f; double d; | |
263 | unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul; | |
264 | { | |
265 | s = s; | |
266 | call6c (i, l, f, d, uc, us, ui, ul); | |
267 | } | |
268 | ||
269 | call6c (i, l, f, d, uc, us, ui, ul) | |
270 | int i; long l; float f; double d; | |
271 | unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul; | |
272 | { | |
273 | i = i; | |
274 | call6d (l, f, d, uc, us, ui, ul); | |
275 | } | |
276 | ||
277 | call6d (l, f, d, uc, us, ui, ul) | |
278 | long l; float f; double d; | |
279 | unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul; | |
280 | { | |
281 | l = l; | |
282 | call6e (f, d, uc, us, ui, ul); | |
283 | } | |
284 | ||
285 | call6e (f, d, uc, us, ui, ul) | |
286 | float f; double d; | |
287 | unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul; | |
288 | { | |
289 | f = f; | |
290 | call6f (d, uc, us, ui, ul); | |
291 | } | |
292 | ||
293 | call6f (d, uc, us, ui, ul) | |
294 | double d; | |
295 | unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul; | |
296 | { | |
297 | d = d; | |
298 | call6g (uc, us, ui, ul); | |
299 | } | |
300 | ||
301 | call6g (uc, us, ui, ul) | |
302 | unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul; | |
303 | { | |
304 | uc = uc; | |
305 | call6h (us, ui, ul); | |
306 | } | |
307 | ||
308 | call6h (us, ui, ul) | |
309 | unsigned short us; unsigned int ui; unsigned long ul; | |
310 | { | |
311 | us = us; | |
312 | call6i (ui, ul); | |
313 | } | |
314 | ||
315 | call6i (ui, ul) | |
316 | unsigned int ui; unsigned long ul; | |
317 | { | |
318 | ui = ui; | |
319 | call6j (ul); | |
320 | } | |
321 | ||
322 | call6j (ul) | |
323 | unsigned long ul; | |
324 | { | |
325 | ul = ul; | |
326 | call6k (); | |
327 | } | |
328 | ||
329 | call6k () | |
330 | { | |
331 | } | |
332 | ||
333 | ||
334 | /* Test shuffling of args, round robin */ | |
335 | ||
336 | ||
337 | call7a (c, i, s, l, f, uc, d, us, ul, ui) | |
338 | char c; int i; short s; long l; float f; unsigned char uc; double d; unsigned short us; unsigned long ul; unsigned int ui; | |
339 | { | |
340 | call7b (i, s, l, f, uc, d, us, ul, ui, c); | |
341 | } | |
342 | ||
343 | call7b (i, s, l, f, uc, d, us, ul, ui, c) | |
344 | int i; short s; long l; float f; unsigned char uc; double d; unsigned short us; unsigned long ul; unsigned int ui; char c; | |
345 | { | |
346 | call7c (s, l, f, uc, d, us, ul, ui, c, i); | |
347 | } | |
348 | ||
349 | call7c (s, l, f, uc, d, us, ul, ui, c, i) | |
350 | short s; long l; float f; unsigned char uc; double d; unsigned short us; unsigned long ul; unsigned int ui; char c; int i; | |
351 | { | |
352 | call7d (l, f, uc, d, us, ul, ui, c, i, s); | |
353 | } | |
354 | ||
355 | call7d (l, f, uc, d, us, ul, ui, c, i, s) | |
356 | long l; float f; unsigned char uc; double d; unsigned short us; unsigned long ul; unsigned int ui; char c; int i; short s; | |
357 | { | |
358 | call7e (f, uc, d, us, ul, ui, c, i, s, l); | |
359 | } | |
360 | ||
361 | call7e (f, uc, d, us, ul, ui, c, i, s, l) | |
362 | float f; unsigned char uc; double d; unsigned short us; unsigned long ul; unsigned int ui; char c; int i; short s; long l; | |
363 | { | |
364 | call7f (uc, d, us, ul, ui, c, i, s, l, f); | |
365 | } | |
366 | ||
367 | call7f (uc, d, us, ul, ui, c, i, s, l, f) | |
368 | unsigned char uc; double d; unsigned short us; unsigned long ul; unsigned int ui; char c; int i; short s; long l; float f; | |
369 | { | |
370 | call7g (d, us, ul, ui, c, i, s, l, f, uc); | |
371 | } | |
372 | ||
373 | call7g (d, us, ul, ui, c, i, s, l, f, uc) | |
374 | double d; unsigned short us; unsigned long ul; unsigned int ui; char c; int i; short s; long l; float f; unsigned char uc; | |
375 | { | |
376 | call7h (us, ul, ui, c, i, s, l, f, uc, d); | |
377 | } | |
378 | ||
379 | call7h (us, ul, ui, c, i, s, l, f, uc, d) | |
380 | unsigned short us; unsigned long ul; unsigned int ui; char c; int i; short s; long l; float f; unsigned char uc; double d; | |
381 | { | |
382 | call7i (ul, ui, c, i, s, l, f, uc, d, us); | |
383 | } | |
384 | ||
385 | call7i (ul, ui, c, i, s, l, f, uc, d, us) | |
386 | unsigned long ul; unsigned int ui; char c; int i; short s; long l; float f; unsigned char uc; double d; unsigned short us; | |
387 | { | |
388 | call7j (ui, c, i, s, l, f, uc, d, us, ul); | |
389 | } | |
390 | ||
391 | call7j (ui, c, i, s, l, f, uc, d, us, ul) | |
392 | unsigned int ui; char c; int i; short s; long l; float f; unsigned char uc; double d; unsigned short us; unsigned long ul; | |
393 | { | |
394 | call7k (c, i, s, l, f, uc, d, us, ul, ui); | |
395 | } | |
396 | ||
397 | call7k (c, i, s, l, f, uc, d, us, ul, ui) | |
398 | char c; int i; short s; long l; float f; unsigned char uc; double d; unsigned short us; unsigned long ul; unsigned int ui; | |
399 | { | |
400 | c = 'a'; i = 7; s = 8; l = 7; f = 0.3; uc = 44; d = 0.44; us = 77; | |
401 | ul = 43; ui = 33; | |
402 | } | |
403 | ||
404 | ||
405 | /* Test printing of structures passed as arguments to recursive functions. */ | |
406 | ||
407 | ||
408 | typedef struct s | |
409 | { | |
410 | short s; | |
411 | int i; | |
412 | long l; | |
413 | } SVAL; | |
414 | ||
415 | hitbottom () | |
416 | { | |
417 | } | |
418 | ||
419 | void recurse (a, depth) | |
420 | SVAL a; | |
421 | int depth; | |
422 | { | |
423 | a.s = a.i = a.l = --depth; | |
424 | if (depth == 0) | |
425 | hitbottom (); | |
426 | else | |
427 | recurse (a, depth); | |
428 | } | |
429 | ||
430 | test_struct_args () | |
431 | { | |
432 | SVAL s; s.s = 5; s.i = 5; s.l = 5; | |
433 | ||
434 | recurse (s, 5); | |
435 | } | |
436 | ||
437 | /* On various machines (pa, 29k, and rs/6000, at least), a function which | |
438 | calls alloca may do things differently with respect to frames. So give | |
439 | it a try. */ | |
440 | ||
441 | int | |
442 | localvars_after_alloca (c, s, i, l) | |
443 | char c; | |
444 | short s; | |
445 | int i; | |
446 | long l; | |
447 | { | |
448 | #ifdef HAVE_STACK_ALLOCA | |
449 | /* No need to use the alloca.c alloca-on-top-of-malloc; it doesn't | |
450 | test what we are looking for, so if we don't have an alloca which | |
451 | allocates on the stack, just don't bother to call alloca at all. */ | |
452 | ||
453 | char *z = alloca (s + 50); | |
454 | #endif | |
455 | c = 'a'; | |
456 | s = 5; | |
457 | i = 6; | |
458 | l = 7; | |
459 | } | |
460 | ||
461 | void | |
462 | call_after_alloca_subr (c, s, i, l, uc, us, ui, ul) | |
463 | char c; int i; short s; long l; unsigned char uc; unsigned short us; unsigned long ul; unsigned int ui; | |
464 | { | |
465 | c = 'a'; | |
466 | i = 7; s = 8; l = 7; uc = 44; us = 77; | |
467 | ul = 43; ui = 33; | |
468 | } | |
469 | ||
470 | int | |
471 | call_after_alloca (c, s, i, l) | |
472 | char c; | |
473 | short s; | |
474 | int i; | |
475 | long l; | |
476 | { | |
477 | #ifdef HAVE_STACK_ALLOCA | |
478 | /* No need to use the alloca.c alloca-on-top-of-malloc; it doesn't | |
479 | test what we are looking for, so if we don't have an alloca which | |
480 | allocates on the stack, just don't bother to call alloca at all. */ | |
481 | ||
482 | char *z = alloca (s + 50); | |
483 | #endif | |
484 | call_after_alloca_subr (c, s, i, l, 'b', 11, 12, (unsigned long)13); | |
485 | } | |
486 | ||
487 | \f | |
488 | ||
489 | /* The point behind this test is the PA will call this indirectly | |
490 | through dyncall. Unlike the indirect calls to call0a, this test | |
491 | will require a trampoline between dyncall and this function on the | |
492 | call path, then another trampoline on between this function and main | |
493 | on the return path. */ | |
494 | double | |
495 | call_with_trampolines (d1) | |
496 | double d1; | |
497 | { | |
498 | return d1; | |
499 | } /* End of call_with_trampolines, this comment is needed by funcargs.exp */ | |
500 | ||
501 | /* Dummy functions which the testsuite can use to run to, etc. */ | |
502 | ||
503 | void | |
504 | marker_indirect_call () {} | |
505 | ||
506 | void | |
507 | marker_call_with_trampolines () {} | |
508 | \f | |
509 | main () | |
510 | { | |
511 | int (*pointer_to_call0a) () = call0a; | |
512 | double (*pointer_to_call_with_trampolines) () = call_with_trampolines; | |
513 | ||
514 | #ifdef usestubs | |
515 | set_debug_traps(); | |
516 | breakpoint(); | |
517 | #endif | |
518 | /* Test calling with basic integer types */ | |
519 | call0a (c, s, i, l); | |
520 | call0b (s, i, l, c); | |
521 | call0c (i, l, c, s); | |
522 | call0d (l, c, s, i); | |
523 | call0e (c, l, c, i, c, s, c, c); | |
524 | ||
525 | /* Test calling with unsigned integer types */ | |
526 | call1a (uc, us, ui, ul); | |
527 | call1b (us, ui, ul, uc); | |
528 | call1c (ui, ul, uc, us); | |
529 | call1d (ul, uc, us, ui); | |
530 | call1e (uc, ul, uc, ui, uc, us, uc, uc); | |
531 | ||
532 | /* Test calling with integral types mixed with floating point types */ | |
533 | call2a (c, f, s, d, i, f, l, d); | |
534 | call2b (f, s, d, i, f, l, d, c); | |
535 | call2c (s, d, i, f, l, d, c, f); | |
536 | call2d (d, i, f, l, d, c, f, s); | |
537 | call2e (i, f, l, d, c, f, s, d); | |
538 | call2f (f, l, d, c, f, s, d, i); | |
539 | call2g (l, d, c, f, s, d, i, f); | |
540 | call2h (d, c, f, s, d, i, f, l); | |
541 | call2i (c, f, c, c, d, c, c, c, f, s, c, d);; | |
542 | ||
543 | /* Test dereferencing pointers to various integral and floating types */ | |
544 | ||
545 | call3a (cp, sp, ip, lp); | |
546 | call3b (ucp, usp, uip, ulp); | |
547 | call3c (fp, dp); | |
548 | ||
549 | /* Test dereferencing pointers to structs and unions */ | |
550 | ||
551 | call4a (stp); | |
552 | un.u1 = 1; | |
553 | call4b (unp); | |
554 | ||
555 | /* Test calling with structures and unions. */ | |
556 | ||
557 | call5a (st); | |
558 | un.u1 = 2; | |
559 | call5b (un); | |
560 | ||
561 | /* Test shuffling of args */ | |
562 | ||
563 | call6a (c, s, i, l, f, d, uc, us, ui, ul); | |
564 | call7a (c, i, s, l, f, uc, d, us, ul, ui); | |
565 | ||
566 | /* Test passing structures recursively. */ | |
567 | ||
568 | test_struct_args (); | |
569 | ||
570 | localvars_after_alloca (c, s, i, l); | |
571 | ||
572 | call_after_alloca (c, s, i, l); | |
573 | ||
574 | /* This is for localvars_in_indirect_call. */ | |
575 | marker_indirect_call (); | |
576 | /* The comment on the following two lines is used by funcargs.exp, | |
577 | don't change it. */ | |
578 | (*pointer_to_call0a) (c, s, i, l); /* First step into call0a. */ | |
579 | (*pointer_to_call0a) (c, s, i, l); /* Second step into call0a. */ | |
580 | marker_call_with_trampolines (); | |
581 | (*pointer_to_call_with_trampolines) (d); /* Test multiple trampolines. */ | |
582 | } |