| 1 | /* This testcase is part of GDB, the GNU debugger. |
| 2 | |
| 3 | Copyright 1993, 1994, 1995, 1998, 1999, 2000, 2001, 2004, 2007 |
| 4 | 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 | Please email any bugs, comments, and/or additions to this file to: |
| 20 | bug-gdb@prep.ai.mit.edu */ |
| 21 | |
| 22 | /* Support program for testing gdb's ability to call functions |
| 23 | in the inferior, pass appropriate arguments to those functions, |
| 24 | and get the returned result. */ |
| 25 | |
| 26 | #ifdef NO_PROTOTYPES |
| 27 | #define PARAMS(paramlist) () |
| 28 | #else |
| 29 | #define PARAMS(paramlist) paramlist |
| 30 | #endif |
| 31 | |
| 32 | # include <stdlib.h> |
| 33 | # include <string.h> |
| 34 | |
| 35 | char char_val1 = 'a'; |
| 36 | char char_val2 = 'b'; |
| 37 | |
| 38 | short short_val1 = 10; |
| 39 | short short_val2 = -23; |
| 40 | |
| 41 | int int_val1 = 87; |
| 42 | int int_val2 = -26; |
| 43 | |
| 44 | long long_val1 = 789; |
| 45 | long long_val2 = -321; |
| 46 | |
| 47 | float float_val1 = 3.14159; |
| 48 | float float_val2 = -2.3765; |
| 49 | |
| 50 | double double_val1 = 45.654; |
| 51 | double double_val2 = -67.66; |
| 52 | |
| 53 | #define DELTA (0.001) |
| 54 | |
| 55 | char *string_val1 = (char *)"string 1"; |
| 56 | char *string_val2 = (char *)"string 2"; |
| 57 | |
| 58 | char char_array_val1[] = "carray 1"; |
| 59 | char char_array_val2[] = "carray 2"; |
| 60 | |
| 61 | struct struct1 { |
| 62 | char c; |
| 63 | short s; |
| 64 | int i; |
| 65 | long l; |
| 66 | float f; |
| 67 | double d; |
| 68 | char a[4]; |
| 69 | } struct_val1 = { 'x', 87, 76, 51, 2.1234, 9.876, "foo" }; |
| 70 | |
| 71 | /* Some functions that can be passed as arguments to other test |
| 72 | functions, or called directly. */ |
| 73 | #ifdef PROTOTYPES |
| 74 | int add (int a, int b) |
| 75 | #else |
| 76 | int add (a, b) int a, b; |
| 77 | #endif |
| 78 | { |
| 79 | return (a + b); |
| 80 | } |
| 81 | |
| 82 | #ifdef PROTOTYPES |
| 83 | int doubleit (int a) |
| 84 | #else |
| 85 | int doubleit (a) int a; |
| 86 | #endif |
| 87 | { |
| 88 | return (a + a); |
| 89 | } |
| 90 | |
| 91 | int (*func_val1) PARAMS((int,int)) = add; |
| 92 | int (*func_val2) PARAMS((int)) = doubleit; |
| 93 | |
| 94 | /* An enumeration and functions that test for specific values. */ |
| 95 | |
| 96 | enum enumtype { enumval1, enumval2, enumval3 }; |
| 97 | enum enumtype enum_val1 = enumval1; |
| 98 | enum enumtype enum_val2 = enumval2; |
| 99 | enum enumtype enum_val3 = enumval3; |
| 100 | |
| 101 | #ifdef PROTOTYPES |
| 102 | int t_enum_value1 (enum enumtype enum_arg) |
| 103 | #else |
| 104 | int t_enum_value1 (enum_arg) enum enumtype enum_arg; |
| 105 | #endif |
| 106 | { |
| 107 | return (enum_arg == enum_val1); |
| 108 | } |
| 109 | |
| 110 | #ifdef PROTOTYPES |
| 111 | int t_enum_value2 (enum enumtype enum_arg) |
| 112 | #else |
| 113 | int t_enum_value2 (enum_arg) enum enumtype enum_arg; |
| 114 | #endif |
| 115 | { |
| 116 | return (enum_arg == enum_val2); |
| 117 | } |
| 118 | |
| 119 | #ifdef PROTOTYPES |
| 120 | int t_enum_value3 (enum enumtype enum_arg) |
| 121 | #else |
| 122 | int t_enum_value3 (enum_arg) enum enumtype enum_arg; |
| 123 | #endif |
| 124 | { |
| 125 | return (enum_arg == enum_val3); |
| 126 | } |
| 127 | |
| 128 | /* A function that takes a vector of integers (along with an explicit |
| 129 | count) and returns their sum. */ |
| 130 | |
| 131 | #ifdef PROTOTYPES |
| 132 | int sum_args (int argc, int argv[]) |
| 133 | #else |
| 134 | int sum_args (argc, argv) int argc; int argv[]; |
| 135 | #endif |
| 136 | { |
| 137 | int sumval = 0; |
| 138 | int idx; |
| 139 | |
| 140 | for (idx = 0; idx < argc; idx++) |
| 141 | { |
| 142 | sumval += argv[idx]; |
| 143 | } |
| 144 | return (sumval); |
| 145 | } |
| 146 | |
| 147 | /* Test that we can call functions that take structs and return |
| 148 | members from that struct */ |
| 149 | |
| 150 | #ifdef PROTOTYPES |
| 151 | char t_structs_c (struct struct1 tstruct) { return (tstruct.c); } |
| 152 | short t_structs_s (struct struct1 tstruct) { return (tstruct.s); } |
| 153 | int t_structs_i (struct struct1 tstruct) { return (tstruct.i); } |
| 154 | long t_structs_l (struct struct1 tstruct) { return (tstruct.l); } |
| 155 | float t_structs_f (struct struct1 tstruct) { return (tstruct.f); } |
| 156 | double t_structs_d (struct struct1 tstruct) { return (tstruct.d); } |
| 157 | char *t_structs_a (struct struct1 tstruct) |
| 158 | { |
| 159 | static char buf[8]; |
| 160 | strcpy (buf, tstruct.a); |
| 161 | return buf; |
| 162 | } |
| 163 | #else |
| 164 | char t_structs_c (tstruct) struct struct1 tstruct; { return (tstruct.c); } |
| 165 | short t_structs_s (tstruct) struct struct1 tstruct; { return (tstruct.s); } |
| 166 | int t_structs_i (tstruct) struct struct1 tstruct; { return (tstruct.i); } |
| 167 | long t_structs_l (tstruct) struct struct1 tstruct; { return (tstruct.l); } |
| 168 | float t_structs_f (tstruct) struct struct1 tstruct; { return (tstruct.f); } |
| 169 | double t_structs_d (tstruct) struct struct1 tstruct; { return (tstruct.d); } |
| 170 | char *t_structs_a (tstruct) struct struct1 tstruct; |
| 171 | { |
| 172 | static char buf[8]; |
| 173 | strcpy (buf, tstruct.a); |
| 174 | return buf; |
| 175 | } |
| 176 | #endif |
| 177 | |
| 178 | /* Test that calling functions works if there are a lot of arguments. */ |
| 179 | #ifdef PROTOTYPES |
| 180 | int |
| 181 | sum10 (int i0, int i1, int i2, int i3, int i4, int i5, int i6, int i7, int i8, int i9) |
| 182 | #else |
| 183 | int |
| 184 | sum10 (i0, i1, i2, i3, i4, i5, i6, i7, i8, i9) |
| 185 | int i0, i1, i2, i3, i4, i5, i6, i7, i8, i9; |
| 186 | #endif |
| 187 | { |
| 188 | return i0 + i1 + i2 + i3 + i4 + i5 + i6 + i7 + i8 + i9; |
| 189 | } |
| 190 | |
| 191 | /* Test that args are passed in the right order. */ |
| 192 | #ifdef PROTOTYPES |
| 193 | int |
| 194 | cmp10 (int i0, int i1, int i2, int i3, int i4, int i5, int i6, int i7, int i8, int i9) |
| 195 | #else |
| 196 | int |
| 197 | cmp10 (i0, i1, i2, i3, i4, i5, i6, i7, i8, i9) |
| 198 | int i0, i1, i2, i3, i4, i5, i6, i7, i8, i9; |
| 199 | #endif |
| 200 | { |
| 201 | return |
| 202 | (i0 == 0) && (i1 == 1) && (i2 == 2) && (i3 == 3) && (i4 == 4) && |
| 203 | (i5 == 5) && (i6 == 6) && (i7 == 7) && (i8 == 8) && (i9 == 9); |
| 204 | } |
| 205 | |
| 206 | /* Functions that expect specific values to be passed and return |
| 207 | either 0 or 1, depending upon whether the values were |
| 208 | passed incorrectly or correctly, respectively. */ |
| 209 | |
| 210 | #ifdef PROTOTYPES |
| 211 | int t_char_values (char char_arg1, char char_arg2) |
| 212 | #else |
| 213 | int t_char_values (char_arg1, char_arg2) |
| 214 | char char_arg1, char_arg2; |
| 215 | #endif |
| 216 | { |
| 217 | return ((char_arg1 == char_val1) && (char_arg2 == char_val2)); |
| 218 | } |
| 219 | |
| 220 | int |
| 221 | #ifdef PROTOTYPES |
| 222 | t_small_values (char arg1, short arg2, int arg3, char arg4, short arg5, |
| 223 | char arg6, short arg7, int arg8, short arg9, short arg10) |
| 224 | #else |
| 225 | t_small_values (arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10) |
| 226 | char arg1; |
| 227 | short arg2; |
| 228 | int arg3; |
| 229 | char arg4; |
| 230 | short arg5; |
| 231 | char arg6; |
| 232 | short arg7; |
| 233 | int arg8; |
| 234 | short arg9; |
| 235 | short arg10; |
| 236 | #endif |
| 237 | { |
| 238 | return arg1 + arg2 + arg3 + arg4 + arg5 + arg6 + arg7 + arg8 + arg9 + arg10; |
| 239 | } |
| 240 | |
| 241 | #ifdef PROTOTYPES |
| 242 | int t_short_values (short short_arg1, short short_arg2) |
| 243 | #else |
| 244 | int t_short_values (short_arg1, short_arg2) |
| 245 | short short_arg1, short_arg2; |
| 246 | #endif |
| 247 | { |
| 248 | return ((short_arg1 == short_val1) && (short_arg2 == short_val2)); |
| 249 | } |
| 250 | |
| 251 | #ifdef PROTOTYPES |
| 252 | int t_int_values (int int_arg1, int int_arg2) |
| 253 | #else |
| 254 | int t_int_values (int_arg1, int_arg2) |
| 255 | int int_arg1, int_arg2; |
| 256 | #endif |
| 257 | { |
| 258 | return ((int_arg1 == int_val1) && (int_arg2 == int_val2)); |
| 259 | } |
| 260 | |
| 261 | #ifdef PROTOTYPES |
| 262 | int t_long_values (long long_arg1, long long_arg2) |
| 263 | #else |
| 264 | int t_long_values (long_arg1, long_arg2) |
| 265 | long long_arg1, long_arg2; |
| 266 | #endif |
| 267 | { |
| 268 | return ((long_arg1 == long_val1) && (long_arg2 == long_val2)); |
| 269 | } |
| 270 | |
| 271 | /* NOTE: THIS FUNCTION MUST NOT BE PROTOTYPED!!!!! |
| 272 | There must be one version of "t_float_values" (this one) |
| 273 | that is not prototyped, and one (if supported) that is (following). |
| 274 | That way GDB can be tested against both cases. */ |
| 275 | |
| 276 | int t_float_values (float_arg1, float_arg2) |
| 277 | float float_arg1, float_arg2; |
| 278 | { |
| 279 | return ((float_arg1 - float_val1) < DELTA |
| 280 | && (float_arg1 - float_val1) > -DELTA |
| 281 | && (float_arg2 - float_val2) < DELTA |
| 282 | && (float_arg2 - float_val2) > -DELTA); |
| 283 | } |
| 284 | |
| 285 | int |
| 286 | #ifdef NO_PROTOTYPES |
| 287 | /* In this case we are just duplicating t_float_values, but that is the |
| 288 | easiest way to deal with either ANSI or non-ANSI. */ |
| 289 | t_float_values2 (float_arg1, float_arg2) |
| 290 | float float_arg1, float_arg2; |
| 291 | #else |
| 292 | t_float_values2 (float float_arg1, float float_arg2) |
| 293 | #endif |
| 294 | { |
| 295 | return ((float_arg1 - float_val1) < DELTA |
| 296 | && (float_arg1 - float_val1) > -DELTA |
| 297 | && (float_arg2 - float_val2) < DELTA |
| 298 | && (float_arg2 - float_val2) > -DELTA); |
| 299 | } |
| 300 | |
| 301 | #ifdef PROTOTYPES |
| 302 | int t_double_values (double double_arg1, double double_arg2) |
| 303 | #else |
| 304 | int t_double_values (double_arg1, double_arg2) |
| 305 | double double_arg1, double_arg2; |
| 306 | #endif |
| 307 | { |
| 308 | return ((double_arg1 - double_val1) < DELTA |
| 309 | && (double_arg1 - double_val1) > -DELTA |
| 310 | && (double_arg2 - double_val2) < DELTA |
| 311 | && (double_arg2 - double_val2) > -DELTA); |
| 312 | } |
| 313 | |
| 314 | #ifdef PROTOTYPES |
| 315 | int t_string_values (char *string_arg1, char *string_arg2) |
| 316 | #else |
| 317 | int t_string_values (string_arg1, string_arg2) |
| 318 | char *string_arg1, *string_arg2; |
| 319 | #endif |
| 320 | { |
| 321 | return (!strcmp (string_arg1, string_val1) && |
| 322 | !strcmp (string_arg2, string_val2)); |
| 323 | } |
| 324 | |
| 325 | #ifdef PROTOTYPES |
| 326 | int t_char_array_values (char char_array_arg1[], char char_array_arg2[]) |
| 327 | #else |
| 328 | int t_char_array_values (char_array_arg1, char_array_arg2) |
| 329 | char char_array_arg1[], char_array_arg2[]; |
| 330 | #endif |
| 331 | { |
| 332 | return (!strcmp (char_array_arg1, char_array_val1) && |
| 333 | !strcmp (char_array_arg2, char_array_val2)); |
| 334 | } |
| 335 | |
| 336 | #ifdef PROTOTYPES |
| 337 | int t_double_int (double double_arg1, int int_arg2) |
| 338 | #else |
| 339 | int t_double_int (double_arg1, int_arg2) |
| 340 | double double_arg1; |
| 341 | int int_arg2; |
| 342 | #endif |
| 343 | { |
| 344 | return ((double_arg1 - int_arg2) < DELTA |
| 345 | && (double_arg1 - int_arg2) > -DELTA); |
| 346 | } |
| 347 | |
| 348 | #ifdef PROTOTYPES |
| 349 | int t_int_double (int int_arg1, double double_arg2) |
| 350 | #else |
| 351 | int t_int_double (int_arg1, double_arg2) |
| 352 | int int_arg1; |
| 353 | double double_arg2; |
| 354 | #endif |
| 355 | { |
| 356 | return ((int_arg1 - double_arg2) < DELTA |
| 357 | && (int_arg1 - double_arg2) > -DELTA); |
| 358 | } |
| 359 | |
| 360 | /* This used to simply compare the function pointer arguments with |
| 361 | known values for func_val1 and func_val2. Doing so is valid ANSI |
| 362 | code, but on some machines (RS6000, HPPA, others?) it may fail when |
| 363 | called directly by GDB. |
| 364 | |
| 365 | In a nutshell, it's not possible for GDB to determine when the address |
| 366 | of a function or the address of the function's stub/trampoline should |
| 367 | be passed. |
| 368 | |
| 369 | So, to avoid GDB lossage in the common case, we perform calls through the |
| 370 | various function pointers and compare the return values. For the HPPA |
| 371 | at least, this allows the common case to work. |
| 372 | |
| 373 | If one wants to try something more complicated, pass the address of |
| 374 | a function accepting a "double" as one of its first 4 arguments. Call |
| 375 | that function indirectly through the function pointer. This would fail |
| 376 | on the HPPA. */ |
| 377 | |
| 378 | #ifdef PROTOTYPES |
| 379 | int t_func_values (int (*func_arg1)(int, int), int (*func_arg2)(int)) |
| 380 | #else |
| 381 | int t_func_values (func_arg1, func_arg2) |
| 382 | int (*func_arg1) PARAMS ((int, int)); |
| 383 | int (*func_arg2) PARAMS ((int)); |
| 384 | #endif |
| 385 | { |
| 386 | return ((*func_arg1) (5,5) == (*func_val1) (5,5) |
| 387 | && (*func_arg2) (6) == (*func_val2) (6)); |
| 388 | } |
| 389 | |
| 390 | #ifdef PROTOTYPES |
| 391 | int t_call_add (int (*func_arg1)(int, int), int a, int b) |
| 392 | #else |
| 393 | int t_call_add (func_arg1, a, b) |
| 394 | int (*func_arg1) PARAMS ((int, int)); |
| 395 | int a, b; |
| 396 | #endif |
| 397 | { |
| 398 | return ((*func_arg1)(a, b)); |
| 399 | } |
| 400 | |
| 401 | |
| 402 | /* Gotta have a main to be able to generate a linked, runnable |
| 403 | executable, and also provide a useful place to set a breakpoint. */ |
| 404 | |
| 405 | int main () |
| 406 | { |
| 407 | #ifdef usestubs |
| 408 | set_debug_traps(); |
| 409 | breakpoint(); |
| 410 | #endif |
| 411 | malloc(1); |
| 412 | t_double_values(double_val1, double_val2); |
| 413 | t_structs_c(struct_val1); |
| 414 | return 0 ; |
| 415 | } |