1 /* Support program for testing gdb's ability to call functions
2 in an inferior which doesn't itself call malloc, pass appropriate
3 arguments to those functions, and get the returned result. */
6 #define PARAMS(paramlist) ()
8 #define PARAMS(paramlist) paramlist
16 short short_val1 = 10;
17 short short_val2 = -23;
23 long long_val2 = -321;
25 float float_val1 = 3.14159;
26 float float_val2 = -2.3765;
28 double double_val1 = 45.654;
29 double double_val2 = -67.66;
33 char *string_val1 = (char *)"string 1";
34 char *string_val2 = (char *)"string 2";
36 char char_array_val1[] = "carray 1";
37 char char_array_val2[] = "carray 2";
47 } struct_val1 = { 'x', 87, 76, 51, 2.1234, 9.876, "foo" };
49 /* Some functions that can be passed as arguments to other test
50 functions, or called directly. */
52 int add (int a, int b)
54 int add (a, b) int a, b;
70 int (*func_val1) PARAMS((int,int)) = add;
71 int (*func_val2) PARAMS((int)) = doubleit;
73 /* An enumeration and functions that test for specific values. */
75 enum enumtype { enumval1, enumval2, enumval3 };
76 enum enumtype enum_val1 = enumval1;
77 enum enumtype enum_val2 = enumval2;
78 enum enumtype enum_val3 = enumval3;
81 int t_enum_value1 (enum enumtype enum_arg)
83 t_enum_value1 (enum_arg)
84 enum enumtype enum_arg;
87 return (enum_arg == enum_val1);
91 int t_enum_value2 (enum enumtype enum_arg)
93 t_enum_value2 (enum_arg)
94 enum enumtype enum_arg;
97 return (enum_arg == enum_val2);
101 int t_enum_value3 (enum enumtype enum_arg)
103 t_enum_value3 (enum_arg)
104 enum enumtype enum_arg;
107 return (enum_arg == enum_val3);
110 /* A function that takes a vector of integers (along with an explicit
111 count) and returns their sum. */
114 int sum_args (int argc, int argv[])
116 int sum_args (argc, argv)
124 for (idx = 0; idx < argc; idx++)
131 /* Test that we can call functions that take structs and return
132 members from that struct */
135 char t_structs_c (struct struct1 tstruct) { return (tstruct.c); }
136 short t_structs_s (struct struct1 tstruct) { return (tstruct.s); }
137 int t_structs_i (struct struct1 tstruct) { return (tstruct.i); }
138 long t_structs_l (struct struct1 tstruct) { return (tstruct.l); }
139 float t_structs_f (struct struct1 tstruct) { return (tstruct.f); }
140 double t_structs_d (struct struct1 tstruct) { return (tstruct.d); }
141 char *t_structs_a (struct struct1 tstruct)
144 strcpy (buf, tstruct.a);
148 char t_structs_c (tstruct) struct struct1 tstruct; { return (tstruct.c); }
149 short t_structs_s (tstruct) struct struct1 tstruct; { return (tstruct.s); }
150 int t_structs_i (tstruct) struct struct1 tstruct; { return (tstruct.i); }
151 long t_structs_l (tstruct) struct struct1 tstruct; { return (tstruct.l); }
152 float t_structs_f (tstruct) struct struct1 tstruct; { return (tstruct.f); }
153 double t_structs_d (tstruct) struct struct1 tstruct; { return (tstruct.d); }
154 char *t_structs_a (tstruct) struct struct1 tstruct;
157 strcpy (buf, tstruct.a);
162 /* Test that calling functions works if there are a lot of arguments. */
164 int sum10 (int i0, int i1, int i2, int i3, int i4, int i5, int i6, int i7, int i8, int i9)
167 sum10 (i0, i1, i2, i3, i4, i5, i6, i7, i8, i9)
168 int i0, i1, i2, i3, i4, i5, i6, i7, i8, i9;
171 return i0 + i1 + i2 + i3 + i4 + i5 + i6 + i7 + i8 + i9;
174 /* Gotta have a main to be able to generate a linked, runnable
175 executable, and also provide a useful place to set a breakpoint. */
183 t_structs_c(struct_val1);
188 /* Functions that expect specific values to be passed and return
189 either 0 or 1, depending upon whether the values were
190 passed incorrectly or correctly, respectively. */
193 int t_char_values (char char_arg1, char char_arg2)
195 int t_char_values (char_arg1, char_arg2)
196 char char_arg1, char_arg2;
199 return ((char_arg1 == char_val1) && (char_arg2 == char_val2));
204 t_small_values (char arg1, short arg2, int arg3, char arg4, short arg5,
205 char arg6, short arg7, int arg8, short arg9, short arg10)
207 t_small_values (arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10)
220 return arg1 + arg2 + arg3 + arg4 + arg5 + arg6 + arg7 + arg8 + arg9 + arg10;
224 int t_short_values (short short_arg1, short short_arg2)
226 int t_short_values (short_arg1, short_arg2)
227 short short_arg1, short_arg2;
230 return ((short_arg1 == short_val1) && (short_arg2 == short_val2));
234 int t_int_values (int int_arg1, int int_arg2)
236 int t_int_values (int_arg1, int_arg2)
237 int int_arg1, int_arg2;
240 return ((int_arg1 == int_val1) && (int_arg2 == int_val2));
244 int t_long_values (long long_arg1, long long_arg2)
246 int t_long_values (long_arg1, long_arg2)
247 long long_arg1, long_arg2;
250 return ((long_arg1 == long_val1) && (long_arg2 == long_val2));
253 /* NOTE: THIS FUNCTION MUST NOT BE PROTOTYPED!!!!!
254 There must be one version of "t_float_values" (this one)
255 that is not prototyped, and one (if supported) that is (following).
256 That way GDB can be tested against both cases. */
258 int t_float_values (float_arg1, float_arg2)
259 float float_arg1, float_arg2;
261 return ((float_arg1 - float_val1) < DELTA
262 && (float_arg1 - float_val1) > -DELTA
263 && (float_arg2 - float_val2) < DELTA
264 && (float_arg2 - float_val2) > -DELTA);
269 /* In this case we are just duplicating t_float_values, but that is the
270 easiest way to deal with either ANSI or non-ANSI. */
271 t_float_values2 (float_arg1, float_arg2)
272 float float_arg1, float_arg2;
274 t_float_values2 (float float_arg1, float float_arg2)
277 return ((float_arg1 - float_val1) < DELTA
278 && (float_arg1 - float_val1) > -DELTA
279 && (float_arg2 - float_val2) < DELTA
280 && (float_arg2 - float_val2) > -DELTA);
284 int t_double_values (double double_arg1, double double_arg2)
286 int t_double_values (double_arg1, double_arg2)
287 double double_arg1, double_arg2;
290 return ((double_arg1 - double_val1) < DELTA
291 && (double_arg1 - double_val1) > -DELTA
292 && (double_arg2 - double_val2) < DELTA
293 && (double_arg2 - double_val2) > -DELTA);
297 int t_string_values (char *string_arg1, char *string_arg2)
299 int t_string_values (string_arg1, string_arg2)
300 char *string_arg1, *string_arg2;
303 return (!strcmp (string_arg1, string_val1) &&
304 !strcmp (string_arg2, string_val2));
308 int t_char_array_values (char char_array_arg1[], char char_array_arg2[])
310 int t_char_array_values (char_array_arg1, char_array_arg2)
311 char char_array_arg1[], char_array_arg2[];
314 return (!strcmp (char_array_arg1, char_array_val1) &&
315 !strcmp (char_array_arg2, char_array_val2));
319 /* This used to simply compare the function pointer arguments with
320 known values for func_val1 and func_val2. Doing so is valid ANSI
321 code, but on some machines (RS6000, HPPA, others?) it may fail when
322 called directly by GDB.
324 In a nutshell, it's not possible for GDB to determine when the address
325 of a function or the address of the function's stub/trampoline should
328 So, to avoid GDB lossage in the common case, we perform calls through the
329 various function pointers and compare the return values. For the HPPA
330 at least, this allows the common case to work.
332 If one wants to try something more complicated, pass the address of
333 a function accepting a "double" as one of its first 4 arguments. Call
334 that function indirectly through the function pointer. This would fail
338 int t_func_values (int (*func_arg1)(int, int), int (*func_arg2)(int))
340 int t_func_values (func_arg1, func_arg2)
341 int (*func_arg1) PARAMS ((int, int));
342 int (*func_arg2) PARAMS ((int));
345 return ((*func_arg1) (5,5) == (*func_val1) (5,5)
346 && (*func_arg2) (6) == (*func_val2) (6));
350 int t_call_add (int (*func_arg1)(int, int), int a, int b)
352 int t_call_add (func_arg1, a, b)
353 int (*func_arg1) PARAMS ((int, int));
357 return ((*func_arg1)(a, b));