1 |
330 |
jeremybenn |
/* This testcase is part of GDB, the GNU debugger.
|
2 |
|
|
|
3 |
|
|
Copyright 1993, 1994, 1995, 1998, 1999, 2000, 2001, 2004, 2007, 2008, 2009,
|
4 |
|
|
2010 Free Software Foundation, Inc.
|
5 |
|
|
|
6 |
|
|
This program is free software; you can redistribute it and/or modify
|
7 |
|
|
it under the terms of the GNU General Public License as published by
|
8 |
|
|
the Free Software Foundation; either version 3 of the License, or
|
9 |
|
|
(at your option) any later version.
|
10 |
|
|
|
11 |
|
|
This program is distributed in the hope that it will be useful,
|
12 |
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
14 |
|
|
GNU General Public License for more details.
|
15 |
|
|
|
16 |
|
|
You should have received a copy of the GNU General Public License
|
17 |
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
18 |
|
|
|
19 |
|
|
/* Support program for testing gdb's ability to call functions
|
20 |
|
|
in the inferior, pass appropriate arguments to those functions,
|
21 |
|
|
and get the returned result. */
|
22 |
|
|
|
23 |
|
|
#ifdef NO_PROTOTYPES
|
24 |
|
|
#define PARAMS(paramlist) ()
|
25 |
|
|
#else
|
26 |
|
|
#define PARAMS(paramlist) paramlist
|
27 |
|
|
#endif
|
28 |
|
|
|
29 |
|
|
# include <stdlib.h>
|
30 |
|
|
# include <string.h>
|
31 |
|
|
|
32 |
|
|
char char_val1 = 'a';
|
33 |
|
|
char char_val2 = 'b';
|
34 |
|
|
|
35 |
|
|
short short_val1 = 10;
|
36 |
|
|
short short_val2 = -23;
|
37 |
|
|
|
38 |
|
|
int int_val1 = 87;
|
39 |
|
|
int int_val2 = -26;
|
40 |
|
|
|
41 |
|
|
long long_val1 = 789;
|
42 |
|
|
long long_val2 = -321;
|
43 |
|
|
|
44 |
|
|
float float_val1 = 3.14159;
|
45 |
|
|
float float_val2 = -2.3765;
|
46 |
|
|
float float_val3 = 0.25;
|
47 |
|
|
float float_val4 = 1.25;
|
48 |
|
|
float float_val5 = 2.25;
|
49 |
|
|
float float_val6 = 3.25;
|
50 |
|
|
float float_val7 = 4.25;
|
51 |
|
|
float float_val8 = 5.25;
|
52 |
|
|
float float_val9 = 6.25;
|
53 |
|
|
float float_val10 = 7.25;
|
54 |
|
|
float float_val11 = 8.25;
|
55 |
|
|
float float_val12 = 9.25;
|
56 |
|
|
float float_val13 = 10.25;
|
57 |
|
|
float float_val14 = 11.25;
|
58 |
|
|
float float_val15 = 12.25;
|
59 |
|
|
|
60 |
|
|
double double_val1 = 45.654;
|
61 |
|
|
double double_val2 = -67.66;
|
62 |
|
|
double double_val3 = 0.25;
|
63 |
|
|
double double_val4 = 1.25;
|
64 |
|
|
double double_val5 = 2.25;
|
65 |
|
|
double double_val6 = 3.25;
|
66 |
|
|
double double_val7 = 4.25;
|
67 |
|
|
double double_val8 = 5.25;
|
68 |
|
|
double double_val9 = 6.25;
|
69 |
|
|
double double_val10 = 7.25;
|
70 |
|
|
double double_val11 = 8.25;
|
71 |
|
|
double double_val12 = 9.25;
|
72 |
|
|
double double_val13 = 10.25;
|
73 |
|
|
double double_val14 = 11.25;
|
74 |
|
|
double double_val15 = 12.25;
|
75 |
|
|
|
76 |
|
|
#define DELTA (0.001)
|
77 |
|
|
|
78 |
|
|
char *string_val1 = (char *)"string 1";
|
79 |
|
|
char *string_val2 = (char *)"string 2";
|
80 |
|
|
|
81 |
|
|
char char_array_val1[] = "carray 1";
|
82 |
|
|
char char_array_val2[] = "carray 2";
|
83 |
|
|
|
84 |
|
|
struct struct1 {
|
85 |
|
|
char c;
|
86 |
|
|
short s;
|
87 |
|
|
int i;
|
88 |
|
|
long l;
|
89 |
|
|
float f;
|
90 |
|
|
double d;
|
91 |
|
|
char a[4];
|
92 |
|
|
} struct_val1 = { 'x', 87, 76, 51, 2.1234, 9.876, "foo" };
|
93 |
|
|
|
94 |
|
|
/* Some functions that can be passed as arguments to other test
|
95 |
|
|
functions, or called directly. */
|
96 |
|
|
#ifdef PROTOTYPES
|
97 |
|
|
int add (int a, int b)
|
98 |
|
|
#else
|
99 |
|
|
int add (a, b) int a, b;
|
100 |
|
|
#endif
|
101 |
|
|
{
|
102 |
|
|
return (a + b);
|
103 |
|
|
}
|
104 |
|
|
|
105 |
|
|
#ifdef PROTOTYPES
|
106 |
|
|
int doubleit (int a)
|
107 |
|
|
#else
|
108 |
|
|
int doubleit (a) int a;
|
109 |
|
|
#endif
|
110 |
|
|
{
|
111 |
|
|
return (a + a);
|
112 |
|
|
}
|
113 |
|
|
|
114 |
|
|
int (*func_val1) PARAMS((int,int)) = add;
|
115 |
|
|
int (*func_val2) PARAMS((int)) = doubleit;
|
116 |
|
|
|
117 |
|
|
/* An enumeration and functions that test for specific values. */
|
118 |
|
|
|
119 |
|
|
enum enumtype { enumval1, enumval2, enumval3 };
|
120 |
|
|
enum enumtype enum_val1 = enumval1;
|
121 |
|
|
enum enumtype enum_val2 = enumval2;
|
122 |
|
|
enum enumtype enum_val3 = enumval3;
|
123 |
|
|
|
124 |
|
|
#ifdef PROTOTYPES
|
125 |
|
|
int t_enum_value1 (enum enumtype enum_arg)
|
126 |
|
|
#else
|
127 |
|
|
int t_enum_value1 (enum_arg) enum enumtype enum_arg;
|
128 |
|
|
#endif
|
129 |
|
|
{
|
130 |
|
|
return (enum_arg == enum_val1);
|
131 |
|
|
}
|
132 |
|
|
|
133 |
|
|
#ifdef PROTOTYPES
|
134 |
|
|
int t_enum_value2 (enum enumtype enum_arg)
|
135 |
|
|
#else
|
136 |
|
|
int t_enum_value2 (enum_arg) enum enumtype enum_arg;
|
137 |
|
|
#endif
|
138 |
|
|
{
|
139 |
|
|
return (enum_arg == enum_val2);
|
140 |
|
|
}
|
141 |
|
|
|
142 |
|
|
#ifdef PROTOTYPES
|
143 |
|
|
int t_enum_value3 (enum enumtype enum_arg)
|
144 |
|
|
#else
|
145 |
|
|
int t_enum_value3 (enum_arg) enum enumtype enum_arg;
|
146 |
|
|
#endif
|
147 |
|
|
{
|
148 |
|
|
return (enum_arg == enum_val3);
|
149 |
|
|
}
|
150 |
|
|
|
151 |
|
|
/* A function that takes a vector of integers (along with an explicit
|
152 |
|
|
count) and returns their sum. */
|
153 |
|
|
|
154 |
|
|
#ifdef PROTOTYPES
|
155 |
|
|
int sum_args (int argc, int argv[])
|
156 |
|
|
#else
|
157 |
|
|
int sum_args (argc, argv) int argc; int argv[];
|
158 |
|
|
#endif
|
159 |
|
|
{
|
160 |
|
|
int sumval = 0;
|
161 |
|
|
int idx;
|
162 |
|
|
|
163 |
|
|
for (idx = 0; idx < argc; idx++)
|
164 |
|
|
{
|
165 |
|
|
sumval += argv[idx];
|
166 |
|
|
}
|
167 |
|
|
return (sumval);
|
168 |
|
|
}
|
169 |
|
|
|
170 |
|
|
/* Test that we can call functions that take structs and return
|
171 |
|
|
members from that struct */
|
172 |
|
|
|
173 |
|
|
#ifdef PROTOTYPES
|
174 |
|
|
char t_structs_c (struct struct1 tstruct) { return (tstruct.c); }
|
175 |
|
|
short t_structs_s (struct struct1 tstruct) { return (tstruct.s); }
|
176 |
|
|
int t_structs_i (struct struct1 tstruct) { return (tstruct.i); }
|
177 |
|
|
long t_structs_l (struct struct1 tstruct) { return (tstruct.l); }
|
178 |
|
|
float t_structs_f (struct struct1 tstruct) { return (tstruct.f); }
|
179 |
|
|
double t_structs_d (struct struct1 tstruct) { return (tstruct.d); }
|
180 |
|
|
char *t_structs_a (struct struct1 tstruct)
|
181 |
|
|
{
|
182 |
|
|
static char buf[8];
|
183 |
|
|
strcpy (buf, tstruct.a);
|
184 |
|
|
return buf;
|
185 |
|
|
}
|
186 |
|
|
#else
|
187 |
|
|
char t_structs_c (tstruct) struct struct1 tstruct; { return (tstruct.c); }
|
188 |
|
|
short t_structs_s (tstruct) struct struct1 tstruct; { return (tstruct.s); }
|
189 |
|
|
int t_structs_i (tstruct) struct struct1 tstruct; { return (tstruct.i); }
|
190 |
|
|
long t_structs_l (tstruct) struct struct1 tstruct; { return (tstruct.l); }
|
191 |
|
|
float t_structs_f (tstruct) struct struct1 tstruct; { return (tstruct.f); }
|
192 |
|
|
double t_structs_d (tstruct) struct struct1 tstruct; { return (tstruct.d); }
|
193 |
|
|
char *t_structs_a (tstruct) struct struct1 tstruct;
|
194 |
|
|
{
|
195 |
|
|
static char buf[8];
|
196 |
|
|
strcpy (buf, tstruct.a);
|
197 |
|
|
return buf;
|
198 |
|
|
}
|
199 |
|
|
#endif
|
200 |
|
|
|
201 |
|
|
/* Test that calling functions works if there are a lot of arguments. */
|
202 |
|
|
#ifdef PROTOTYPES
|
203 |
|
|
int
|
204 |
|
|
sum10 (int i0, int i1, int i2, int i3, int i4, int i5, int i6, int i7, int i8, int i9)
|
205 |
|
|
#else
|
206 |
|
|
int
|
207 |
|
|
sum10 (i0, i1, i2, i3, i4, i5, i6, i7, i8, i9)
|
208 |
|
|
int i0, i1, i2, i3, i4, i5, i6, i7, i8, i9;
|
209 |
|
|
#endif
|
210 |
|
|
{
|
211 |
|
|
return i0 + i1 + i2 + i3 + i4 + i5 + i6 + i7 + i8 + i9;
|
212 |
|
|
}
|
213 |
|
|
|
214 |
|
|
/* Test that args are passed in the right order. */
|
215 |
|
|
#ifdef PROTOTYPES
|
216 |
|
|
int
|
217 |
|
|
cmp10 (int i0, int i1, int i2, int i3, int i4, int i5, int i6, int i7, int i8, int i9)
|
218 |
|
|
#else
|
219 |
|
|
int
|
220 |
|
|
cmp10 (i0, i1, i2, i3, i4, i5, i6, i7, i8, i9)
|
221 |
|
|
int i0, i1, i2, i3, i4, i5, i6, i7, i8, i9;
|
222 |
|
|
#endif
|
223 |
|
|
{
|
224 |
|
|
return
|
225 |
|
|
(i0 == 0) && (i1 == 1) && (i2 == 2) && (i3 == 3) && (i4 == 4) &&
|
226 |
|
|
(i5 == 5) && (i6 == 6) && (i7 == 7) && (i8 == 8) && (i9 == 9);
|
227 |
|
|
}
|
228 |
|
|
|
229 |
|
|
/* Functions that expect specific values to be passed and return
|
230 |
|
|
either 0 or 1, depending upon whether the values were
|
231 |
|
|
passed incorrectly or correctly, respectively. */
|
232 |
|
|
|
233 |
|
|
#ifdef PROTOTYPES
|
234 |
|
|
int t_char_values (char char_arg1, char char_arg2)
|
235 |
|
|
#else
|
236 |
|
|
int t_char_values (char_arg1, char_arg2)
|
237 |
|
|
char char_arg1, char_arg2;
|
238 |
|
|
#endif
|
239 |
|
|
{
|
240 |
|
|
return ((char_arg1 == char_val1) && (char_arg2 == char_val2));
|
241 |
|
|
}
|
242 |
|
|
|
243 |
|
|
int
|
244 |
|
|
#ifdef PROTOTYPES
|
245 |
|
|
t_small_values (char arg1, short arg2, int arg3, char arg4, short arg5,
|
246 |
|
|
char arg6, short arg7, int arg8, short arg9, short arg10)
|
247 |
|
|
#else
|
248 |
|
|
t_small_values (arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10)
|
249 |
|
|
char arg1;
|
250 |
|
|
short arg2;
|
251 |
|
|
int arg3;
|
252 |
|
|
char arg4;
|
253 |
|
|
short arg5;
|
254 |
|
|
char arg6;
|
255 |
|
|
short arg7;
|
256 |
|
|
int arg8;
|
257 |
|
|
short arg9;
|
258 |
|
|
short arg10;
|
259 |
|
|
#endif
|
260 |
|
|
{
|
261 |
|
|
return arg1 + arg2 + arg3 + arg4 + arg5 + arg6 + arg7 + arg8 + arg9 + arg10;
|
262 |
|
|
}
|
263 |
|
|
|
264 |
|
|
#ifdef PROTOTYPES
|
265 |
|
|
int t_short_values (short short_arg1, short short_arg2)
|
266 |
|
|
#else
|
267 |
|
|
int t_short_values (short_arg1, short_arg2)
|
268 |
|
|
short short_arg1, short_arg2;
|
269 |
|
|
#endif
|
270 |
|
|
{
|
271 |
|
|
return ((short_arg1 == short_val1) && (short_arg2 == short_val2));
|
272 |
|
|
}
|
273 |
|
|
|
274 |
|
|
#ifdef PROTOTYPES
|
275 |
|
|
int t_int_values (int int_arg1, int int_arg2)
|
276 |
|
|
#else
|
277 |
|
|
int t_int_values (int_arg1, int_arg2)
|
278 |
|
|
int int_arg1, int_arg2;
|
279 |
|
|
#endif
|
280 |
|
|
{
|
281 |
|
|
return ((int_arg1 == int_val1) && (int_arg2 == int_val2));
|
282 |
|
|
}
|
283 |
|
|
|
284 |
|
|
#ifdef PROTOTYPES
|
285 |
|
|
int t_long_values (long long_arg1, long long_arg2)
|
286 |
|
|
#else
|
287 |
|
|
int t_long_values (long_arg1, long_arg2)
|
288 |
|
|
long long_arg1, long_arg2;
|
289 |
|
|
#endif
|
290 |
|
|
{
|
291 |
|
|
return ((long_arg1 == long_val1) && (long_arg2 == long_val2));
|
292 |
|
|
}
|
293 |
|
|
|
294 |
|
|
/* NOTE: THIS FUNCTION MUST NOT BE PROTOTYPED!!!!!
|
295 |
|
|
There must be one version of "t_float_values" (this one)
|
296 |
|
|
that is not prototyped, and one (if supported) that is (following).
|
297 |
|
|
That way GDB can be tested against both cases. */
|
298 |
|
|
|
299 |
|
|
int t_float_values (float_arg1, float_arg2)
|
300 |
|
|
float float_arg1, float_arg2;
|
301 |
|
|
{
|
302 |
|
|
return ((float_arg1 - float_val1) < DELTA
|
303 |
|
|
&& (float_arg1 - float_val1) > -DELTA
|
304 |
|
|
&& (float_arg2 - float_val2) < DELTA
|
305 |
|
|
&& (float_arg2 - float_val2) > -DELTA);
|
306 |
|
|
}
|
307 |
|
|
|
308 |
|
|
int
|
309 |
|
|
#ifdef NO_PROTOTYPES
|
310 |
|
|
/* In this case we are just duplicating t_float_values, but that is the
|
311 |
|
|
easiest way to deal with either ANSI or non-ANSI. */
|
312 |
|
|
t_float_values2 (float_arg1, float_arg2)
|
313 |
|
|
float float_arg1, float_arg2;
|
314 |
|
|
#else
|
315 |
|
|
t_float_values2 (float float_arg1, float float_arg2)
|
316 |
|
|
#endif
|
317 |
|
|
{
|
318 |
|
|
return ((float_arg1 - float_val1) < DELTA
|
319 |
|
|
&& (float_arg1 - float_val1) > -DELTA
|
320 |
|
|
&& (float_arg2 - float_val2) < DELTA
|
321 |
|
|
&& (float_arg2 - float_val2) > -DELTA);
|
322 |
|
|
}
|
323 |
|
|
|
324 |
|
|
/* This function has many arguments to force some of them to be passed via
|
325 |
|
|
the stack instead of registers, to test that GDB can construct correctly
|
326 |
|
|
the parameter save area. Note that Linux/ppc32 has 8 float registers to use
|
327 |
|
|
for float parameter passing and Linux/ppc64 has 13, so the number of
|
328 |
|
|
arguments has to be at least 14 to contemplate these platforms. */
|
329 |
|
|
|
330 |
|
|
float
|
331 |
|
|
#ifdef NO_PROTOTYPES
|
332 |
|
|
t_float_many_args (f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13,
|
333 |
|
|
f14, f15)
|
334 |
|
|
float f1, float f2, float f3, float f4, float f5, float f6, float f7,
|
335 |
|
|
float f8, float f9, float f10, float f11, float f12, float f13, float f14,
|
336 |
|
|
float f15;
|
337 |
|
|
#else
|
338 |
|
|
t_float_many_args (float f1, float f2, float f3, float f4, float f5, float f6,
|
339 |
|
|
float f7, float f8, float f9, float f10, float f11,
|
340 |
|
|
float f12, float f13, float f14, float f15)
|
341 |
|
|
#endif
|
342 |
|
|
{
|
343 |
|
|
float sum_args;
|
344 |
|
|
float sum_values;
|
345 |
|
|
|
346 |
|
|
sum_args = f1 + f2 + f3 + f4 + f5 + f6 + f7 + f8 + f9 + f10 + f11 + f12
|
347 |
|
|
+ f13 + f14 + f15;
|
348 |
|
|
sum_values = float_val1 + float_val2 + float_val3 + float_val4 + float_val5
|
349 |
|
|
+ float_val6 + float_val7 + float_val8 + float_val9
|
350 |
|
|
+ float_val10 + float_val11 + float_val12 + float_val13
|
351 |
|
|
+ float_val14 + float_val15;
|
352 |
|
|
|
353 |
|
|
return ((sum_args - sum_values) < DELTA
|
354 |
|
|
&& (sum_args - sum_values) > -DELTA);
|
355 |
|
|
}
|
356 |
|
|
|
357 |
|
|
#ifdef PROTOTYPES
|
358 |
|
|
int t_double_values (double double_arg1, double double_arg2)
|
359 |
|
|
#else
|
360 |
|
|
int t_double_values (double_arg1, double_arg2)
|
361 |
|
|
double double_arg1, double_arg2;
|
362 |
|
|
#endif
|
363 |
|
|
{
|
364 |
|
|
return ((double_arg1 - double_val1) < DELTA
|
365 |
|
|
&& (double_arg1 - double_val1) > -DELTA
|
366 |
|
|
&& (double_arg2 - double_val2) < DELTA
|
367 |
|
|
&& (double_arg2 - double_val2) > -DELTA);
|
368 |
|
|
}
|
369 |
|
|
|
370 |
|
|
/* This function has many arguments to force some of them to be passed via
|
371 |
|
|
the stack instead of registers, to test that GDB can construct correctly
|
372 |
|
|
the parameter save area. Note that Linux/ppc32 has 8 float registers to use
|
373 |
|
|
for float parameter passing and Linux/ppc64 has 13, so the number of
|
374 |
|
|
arguments has to be at least 14 to contemplate these platforms. */
|
375 |
|
|
|
376 |
|
|
double
|
377 |
|
|
#ifdef NO_PROTOTYPES
|
378 |
|
|
t_double_many_args (f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13,
|
379 |
|
|
f14, f15)
|
380 |
|
|
double f1, double f2, double f3, double f4, double f5, double f6,
|
381 |
|
|
double f7, double f8, double f9, double f10, double f11, double f12,
|
382 |
|
|
double f13, double f14, double f15;
|
383 |
|
|
#else
|
384 |
|
|
t_double_many_args (double f1, double f2, double f3, double f4, double f5,
|
385 |
|
|
double f6, double f7, double f8, double f9, double f10,
|
386 |
|
|
double f11, double f12, double f13, double f14, double f15)
|
387 |
|
|
#endif
|
388 |
|
|
{
|
389 |
|
|
double sum_args;
|
390 |
|
|
double sum_values;
|
391 |
|
|
|
392 |
|
|
sum_args = f1 + f2 + f3 + f4 + f5 + f6 + f7 + f8 + f9 + f10 + f11 + f12
|
393 |
|
|
+ f13 + f14 + f15;
|
394 |
|
|
sum_values = double_val1 + double_val2 + double_val3 + double_val4
|
395 |
|
|
+ double_val5 + double_val6 + double_val7 + double_val8
|
396 |
|
|
+ double_val9 + double_val10 + double_val11 + double_val12
|
397 |
|
|
+ double_val13 + double_val14 + double_val15;
|
398 |
|
|
|
399 |
|
|
return ((sum_args - sum_values) < DELTA
|
400 |
|
|
&& (sum_args - sum_values) > -DELTA);
|
401 |
|
|
}
|
402 |
|
|
|
403 |
|
|
#ifdef PROTOTYPES
|
404 |
|
|
int t_string_values (char *string_arg1, char *string_arg2)
|
405 |
|
|
#else
|
406 |
|
|
int t_string_values (string_arg1, string_arg2)
|
407 |
|
|
char *string_arg1, *string_arg2;
|
408 |
|
|
#endif
|
409 |
|
|
{
|
410 |
|
|
return (!strcmp (string_arg1, string_val1) &&
|
411 |
|
|
!strcmp (string_arg2, string_val2));
|
412 |
|
|
}
|
413 |
|
|
|
414 |
|
|
#ifdef PROTOTYPES
|
415 |
|
|
int t_char_array_values (char char_array_arg1[], char char_array_arg2[])
|
416 |
|
|
#else
|
417 |
|
|
int t_char_array_values (char_array_arg1, char_array_arg2)
|
418 |
|
|
char char_array_arg1[], char_array_arg2[];
|
419 |
|
|
#endif
|
420 |
|
|
{
|
421 |
|
|
return (!strcmp (char_array_arg1, char_array_val1) &&
|
422 |
|
|
!strcmp (char_array_arg2, char_array_val2));
|
423 |
|
|
}
|
424 |
|
|
|
425 |
|
|
#ifdef PROTOTYPES
|
426 |
|
|
int t_double_int (double double_arg1, int int_arg2)
|
427 |
|
|
#else
|
428 |
|
|
int t_double_int (double_arg1, int_arg2)
|
429 |
|
|
double double_arg1;
|
430 |
|
|
int int_arg2;
|
431 |
|
|
#endif
|
432 |
|
|
{
|
433 |
|
|
return ((double_arg1 - int_arg2) < DELTA
|
434 |
|
|
&& (double_arg1 - int_arg2) > -DELTA);
|
435 |
|
|
}
|
436 |
|
|
|
437 |
|
|
#ifdef PROTOTYPES
|
438 |
|
|
int t_int_double (int int_arg1, double double_arg2)
|
439 |
|
|
#else
|
440 |
|
|
int t_int_double (int_arg1, double_arg2)
|
441 |
|
|
int int_arg1;
|
442 |
|
|
double double_arg2;
|
443 |
|
|
#endif
|
444 |
|
|
{
|
445 |
|
|
return ((int_arg1 - double_arg2) < DELTA
|
446 |
|
|
&& (int_arg1 - double_arg2) > -DELTA);
|
447 |
|
|
}
|
448 |
|
|
|
449 |
|
|
/* This used to simply compare the function pointer arguments with
|
450 |
|
|
known values for func_val1 and func_val2. Doing so is valid ANSI
|
451 |
|
|
code, but on some machines (RS6000, HPPA, others?) it may fail when
|
452 |
|
|
called directly by GDB.
|
453 |
|
|
|
454 |
|
|
In a nutshell, it's not possible for GDB to determine when the address
|
455 |
|
|
of a function or the address of the function's stub/trampoline should
|
456 |
|
|
be passed.
|
457 |
|
|
|
458 |
|
|
So, to avoid GDB lossage in the common case, we perform calls through the
|
459 |
|
|
various function pointers and compare the return values. For the HPPA
|
460 |
|
|
at least, this allows the common case to work.
|
461 |
|
|
|
462 |
|
|
If one wants to try something more complicated, pass the address of
|
463 |
|
|
a function accepting a "double" as one of its first 4 arguments. Call
|
464 |
|
|
that function indirectly through the function pointer. This would fail
|
465 |
|
|
on the HPPA. */
|
466 |
|
|
|
467 |
|
|
#ifdef PROTOTYPES
|
468 |
|
|
int t_func_values (int (*func_arg1)(int, int), int (*func_arg2)(int))
|
469 |
|
|
#else
|
470 |
|
|
int t_func_values (func_arg1, func_arg2)
|
471 |
|
|
int (*func_arg1) PARAMS ((int, int));
|
472 |
|
|
int (*func_arg2) PARAMS ((int));
|
473 |
|
|
#endif
|
474 |
|
|
{
|
475 |
|
|
return ((*func_arg1) (5,5) == (*func_val1) (5,5)
|
476 |
|
|
&& (*func_arg2) (6) == (*func_val2) (6));
|
477 |
|
|
}
|
478 |
|
|
|
479 |
|
|
#ifdef PROTOTYPES
|
480 |
|
|
int t_call_add (int (*func_arg1)(int, int), int a, int b)
|
481 |
|
|
#else
|
482 |
|
|
int t_call_add (func_arg1, a, b)
|
483 |
|
|
int (*func_arg1) PARAMS ((int, int));
|
484 |
|
|
int a, b;
|
485 |
|
|
#endif
|
486 |
|
|
{
|
487 |
|
|
return ((*func_arg1)(a, b));
|
488 |
|
|
}
|
489 |
|
|
|
490 |
|
|
struct struct_with_fnptr
|
491 |
|
|
{
|
492 |
|
|
int (*func) PARAMS((int));
|
493 |
|
|
};
|
494 |
|
|
|
495 |
|
|
struct struct_with_fnptr function_struct = { doubleit };
|
496 |
|
|
|
497 |
|
|
struct struct_with_fnptr *function_struct_ptr = &function_struct;
|
498 |
|
|
|
499 |
|
|
/* Gotta have a main to be able to generate a linked, runnable
|
500 |
|
|
executable, and also provide a useful place to set a breakpoint. */
|
501 |
|
|
|
502 |
|
|
int main ()
|
503 |
|
|
{
|
504 |
|
|
#ifdef usestubs
|
505 |
|
|
set_debug_traps();
|
506 |
|
|
breakpoint();
|
507 |
|
|
#endif
|
508 |
|
|
malloc(1);
|
509 |
|
|
t_double_values(double_val1, double_val2);
|
510 |
|
|
t_structs_c(struct_val1);
|
511 |
|
|
return 0 ;
|
512 |
|
|
}
|