352 lines
8.6 KiB
C
352 lines
8.6 KiB
C
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/* Support program for testing gdb's ability to call functions
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in an inferior which doesn't itself call malloc, pass appropriate
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arguments to those functions, and get the returned result. */
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#ifdef NO_PROTOTYPES
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#define PARAMS(paramlist) ()
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#else
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#define PARAMS(paramlist) paramlist
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#endif
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# include <string.h>
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char char_val1 = 'a';
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char char_val2 = 'b';
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short short_val1 = 10;
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short short_val2 = -23;
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int int_val1 = 87;
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int int_val2 = -26;
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long long_val1 = 789;
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long long_val2 = -321;
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float float_val1 = 3.14159;
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float float_val2 = -2.3765;
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double double_val1 = 45.654;
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double double_val2 = -67.66;
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#define DELTA (0.001)
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char *string_val1 = (char *)"string 1";
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char *string_val2 = (char *)"string 2";
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char char_array_val1[] = "carray 1";
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char char_array_val2[] = "carray 2";
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struct struct1 {
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char c;
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short s;
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int i;
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long l;
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float f;
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double d;
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char a[4];
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} struct_val1 = { 'x', 87, 76, 51, 2.1234, 9.876, "foo" };
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/* Some functions that can be passed as arguments to other test
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functions, or called directly. */
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#ifdef PROTOTYPES
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int add (int a, int b)
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#else
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int add (a, b) int a, b;
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#endif
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{
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return (a + b);
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}
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#ifdef PROTOTYPES
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int doubleit (int a)
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#else
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int doubleit (a)
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int a;
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#endif
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{
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return (a + a);
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}
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int (*func_val1) PARAMS((int,int)) = add;
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int (*func_val2) PARAMS((int)) = doubleit;
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/* An enumeration and functions that test for specific values. */
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enum enumtype { enumval1, enumval2, enumval3 };
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enum enumtype enum_val1 = enumval1;
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enum enumtype enum_val2 = enumval2;
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enum enumtype enum_val3 = enumval3;
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#ifdef PROTOTYPES
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int t_enum_value1 (enum enumtype enum_arg)
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#else
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t_enum_value1 (enum_arg)
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enum enumtype enum_arg;
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#endif
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{
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return (enum_arg == enum_val1);
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}
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#ifdef PROTOTYPES
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int t_enum_value2 (enum enumtype enum_arg)
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#else
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t_enum_value2 (enum_arg)
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enum enumtype enum_arg;
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#endif
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{
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return (enum_arg == enum_val2);
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}
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#ifdef PROTOTYPES
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int t_enum_value3 (enum enumtype enum_arg)
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#else
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t_enum_value3 (enum_arg)
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enum enumtype enum_arg;
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#endif
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{
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return (enum_arg == enum_val3);
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}
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/* A function that takes a vector of integers (along with an explicit
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count) and returns their sum. */
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#ifdef PROTOTYPES
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int sum_args (int argc, int argv[])
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#else
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int sum_args (argc, argv)
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int argc;
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int argv[];
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#endif
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{
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int sumval = 0;
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int idx;
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for (idx = 0; idx < argc; idx++)
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{
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sumval += argv[idx];
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}
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return (sumval);
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}
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/* Test that we can call functions that take structs and return
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members from that struct */
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#ifdef PROTOTYPES
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char t_structs_c (struct struct1 tstruct) { return (tstruct.c); }
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short t_structs_s (struct struct1 tstruct) { return (tstruct.s); }
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int t_structs_i (struct struct1 tstruct) { return (tstruct.i); }
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long t_structs_l (struct struct1 tstruct) { return (tstruct.l); }
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float t_structs_f (struct struct1 tstruct) { return (tstruct.f); }
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double t_structs_d (struct struct1 tstruct) { return (tstruct.d); }
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char *t_structs_a (struct struct1 tstruct) { return (tstruct.a); }
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#else
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char t_structs_c (tstruct) struct struct1 tstruct; { return (tstruct.c); }
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short t_structs_s (tstruct) struct struct1 tstruct; { return (tstruct.s); }
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int t_structs_i (tstruct) struct struct1 tstruct; { return (tstruct.i); }
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long t_structs_l (tstruct) struct struct1 tstruct; { return (tstruct.l); }
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float t_structs_f (tstruct) struct struct1 tstruct; { return (tstruct.f); }
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double t_structs_d (tstruct) struct struct1 tstruct; { return (tstruct.d); }
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char *t_structs_a (tstruct) struct struct1 tstruct; { return (tstruct.a); }
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#endif
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/* Test that calling functions works if there are a lot of arguments. */
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#ifdef PROTOTYPES
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int sum10 (int i0, int i1, int i2, int i3, int i4, int i5, int i6, int i7, int i8, int i9)
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#else
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int
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sum10 (i0, i1, i2, i3, i4, i5, i6, i7, i8, i9)
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int i0, i1, i2, i3, i4, i5, i6, i7, i8, i9;
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#endif
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{
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return i0 + i1 + i2 + i3 + i4 + i5 + i6 + i7 + i8 + i9;
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}
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/* Gotta have a main to be able to generate a linked, runnable
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executable, and also provide a useful place to set a breakpoint. */
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#ifdef PROTOTYPES
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int main()
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#else
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main ()
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#endif
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{
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#ifdef usestubs
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set_debug_traps();
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breakpoint();
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#endif
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t_structs_c(struct_val1);
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return 0;
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}
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/* Functions that expect specific values to be passed and return
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either 0 or 1, depending upon whether the values were
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passed incorrectly or correctly, respectively. */
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#ifdef PROTOTYPES
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int t_char_values (char char_arg1, char char_arg2)
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#else
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int t_char_values (char_arg1, char_arg2)
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char char_arg1, char_arg2;
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#endif
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{
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return ((char_arg1 == char_val1) && (char_arg2 == char_val2));
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}
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int
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#ifdef PROTOTYPES
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t_small_values (char arg1, short arg2, int arg3, char arg4, short arg5,
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char arg6, short arg7, int arg8, short arg9, short arg10)
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#else
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t_small_values (arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10)
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char arg1;
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short arg2;
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int arg3;
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char arg4;
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short arg5;
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char arg6;
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short arg7;
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int arg8;
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short arg9;
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short arg10;
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#endif
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{
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return arg1 + arg2 + arg3 + arg4 + arg5 + arg6 + arg7 + arg8 + arg9 + arg10;
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}
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#ifdef PROTOTYPES
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int t_short_values (short short_arg1, short short_arg2)
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#else
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int t_short_values (short_arg1, short_arg2)
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short short_arg1, short_arg2;
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#endif
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{
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return ((short_arg1 == short_val1) && (short_arg2 == short_val2));
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}
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#ifdef PROTOTYPES
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int t_int_values (int int_arg1, int int_arg2)
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#else
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int t_int_values (int_arg1, int_arg2)
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int int_arg1, int_arg2;
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#endif
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{
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return ((int_arg1 == int_val1) && (int_arg2 == int_val2));
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}
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#ifdef PROTOTYPES
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int t_long_values (long long_arg1, long long_arg2)
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#else
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int t_long_values (long_arg1, long_arg2)
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long long_arg1, long_arg2;
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#endif
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{
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return ((long_arg1 == long_val1) && (long_arg2 == long_val2));
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}
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#ifdef PROTOTYPES
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int t_float_values (float float_arg1, float float_arg2)
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#else
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int t_float_values (float_arg1, float_arg2)
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float float_arg1, float_arg2;
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#endif
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{
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return ((float_arg1 - float_val1) < DELTA
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&& (float_arg1 - float_val1) > -DELTA
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&& (float_arg2 - float_val2) < DELTA
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&& (float_arg2 - float_val2) > -DELTA);
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}
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int
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#ifdef PROTOTYPES
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t_float_values2 (float float_arg1, float float_arg2)
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#else
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/* In this case we are just duplicating t_float_values, but that is the
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easiest way to deal with either ANSI or non-ANSI. */
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t_float_values2 (float_arg1, float_arg2)
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float float_arg1, float_arg2;
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#endif
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{
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return ((float_arg1 - float_val1) < DELTA
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&& (float_arg1 - float_val1) > -DELTA
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&& (float_arg2 - float_val2) < DELTA
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&& (float_arg2 - float_val2) > -DELTA);
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}
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#ifdef PROTOTYPES
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int t_double_values (double double_arg1, double double_arg2)
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#else
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int t_double_values (double_arg1, double_arg2)
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double double_arg1, double_arg2;
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#endif
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{
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return ((double_arg1 - double_val1) < DELTA
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&& (double_arg1 - double_val1) > -DELTA
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&& (double_arg2 - double_val2) < DELTA
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&& (double_arg2 - double_val2) > -DELTA);
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}
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#ifdef PROTOTYPES
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int t_string_values (char *string_arg1, char *string_arg2)
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#else
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int t_string_values (string_arg1, string_arg2)
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char *string_arg1, *string_arg2;
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#endif
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{
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return (!strcmp (string_arg1, string_val1) &&
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!strcmp (string_arg2, string_val2));
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}
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#ifdef PROTOTYPES
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int t_char_array_values (char char_array_arg1[], char char_array_arg2[])
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#else
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int t_char_array_values (char_array_arg1, char_array_arg2)
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char char_array_arg1[], char_array_arg2[];
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#endif
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{
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return (!strcmp (char_array_arg1, char_array_val1) &&
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!strcmp (char_array_arg2, char_array_val2));
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}
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/* This used to simply compare the function pointer arguments with
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known values for func_val1 and func_val2. Doing so is valid ANSI
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code, but on some machines (RS6000, HPPA, others?) it may fail when
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called directly by GDB.
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In a nutshell, it's not possible for GDB to determine when the address
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of a function or the address of the function's stub/trampoline should
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be passed.
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So, to avoid GDB lossage in the common case, we perform calls through the
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various function pointers and compare the return values. For the HPPA
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at least, this allows the common case to work.
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If one wants to try something more complicated, pass the address of
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a function accepting a "double" as one of its first 4 arguments. Call
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that function indirectly through the function pointer. This would fail
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on the HPPA. */
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#ifdef PROTOTYPES
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int t_func_values (int (*func_arg1)(int, int), int (*func_arg2)(int))
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#else
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int t_func_values (func_arg1, func_arg2)
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int (*func_arg1) PARAMS ((int, int));
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int (*func_arg2) PARAMS ((int));
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#endif
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{
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return ((*func_arg1) (5,5) == (*func_val1) (5,5)
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&& (*func_arg2) (6) == (*func_val2) (6));
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}
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#ifdef PROTOTYPES
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int t_call_add (int (*func_arg1)(int, int), int a, int b)
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#else
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int t_call_add (func_arg1, a, b)
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int (*func_arg1) PARAMS ((int, int));
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int a, b;
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#endif
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{
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return ((*func_arg1)(a, b));
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}
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