1 files changed, 280 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.base/callfuncs.c b/gdb/testsuite/gdb.base/callfuncs.c
new file mode 100644
index 00000000000..56b9ba8153b
--- /dev/null
+++ b/gdb/testsuite/gdb.base/callfuncs.c
@@ -0,0 +1,280 @@
+/* Support program for testing gdb's ability to call functions
+   in the inferior, pass appropriate arguments to those functions,
+   and get the returned result. */
+
+#ifdef NO_PROTOTYPES
+#define PARAMS(paramlist) ()
+#else
+#define PARAMS(paramlist) paramlist
+#endif
+
+char char_val1 = 'a';
+char char_val2 = 'b';
+
+short short_val1 = 10;
+short short_val2 = -23;
+
+int int_val1 = 87;
+int int_val2 = -26;
+
+long long_val1 = 789;
+long long_val2 = -321;
+
+float float_val1 = 3.14159;
+float float_val2 = -2.3765;
+
+double double_val1 = 45.654;
+double double_val2 = -67.66;
+
+#define DELTA (0.001)
+
+char *string_val1 = "string 1";
+char *string_val2 = "string 2";
+
+char char_array_val1[] = "carray 1";
+char char_array_val2[] = "carray 2";
+
+struct struct1 {
+  char c;
+  short s;
+  int i;
+  long l;
+  float f;
+  double d;
+  char a[4];
+} struct_val1 = { 'x', 87, 76, 51, 2.1234, 9.876, "foo" };
+
+/* Some functions that can be passed as arguments to other test
+   functions, or called directly. */
+
+int add (a, b)
+int a, b;
+{
+  return (a + b);
+}
+
+int doubleit (a)
+int a;
+{
+  return (a + a);
+}
+
+int (*func_val1) PARAMS((int,int)) = add;
+int (*func_val2) PARAMS((int)) = doubleit;
+
+/* An enumeration and functions that test for specific values. */
+
+enum enumtype { enumval1, enumval2, enumval3 };
+enum enumtype enum_val1 = enumval1;
+enum enumtype enum_val2 = enumval2;
+enum enumtype enum_val3 = enumval3;
+
+int t_enum_value1 (enum_arg)
+enum enumtype enum_arg;
+{
+  return (enum_arg == enum_val1);
+}
+
+int t_enum_value2 (enum_arg)
+enum enumtype enum_arg;
+{
+  return (enum_arg == enum_val2);
+}
+
+int t_enum_value3 (enum_arg)
+enum enumtype enum_arg;
+{
+  return (enum_arg == enum_val3);
+}
+
+/* A function that takes a vector of integers (along with an explicit
+   count) and returns their sum. */
+
+int sum_args (argc, argv)
+int argc;
+int argv[];
+{
+  int sumval = 0;
+  int idx;
+
+  for (idx = 0; idx < argc; idx++)
+    {
+      sumval += argv[idx];
+    }
+  return (sumval);
+}
+
+/* Test that we can call functions that take structs and return
+   members from that struct */
+
+char   t_structs_c (tstruct) struct struct1 tstruct; { return (tstruct.c); }
+short  t_structs_s (tstruct) struct struct1 tstruct; { return (tstruct.s); }
+int    t_structs_i (tstruct) struct struct1 tstruct; { return (tstruct.i); }
+long   t_structs_l (tstruct) struct struct1 tstruct; { return (tstruct.l); }
+float  t_structs_f (tstruct) struct struct1 tstruct; { return (tstruct.f); }
+double t_structs_d (tstruct) struct struct1 tstruct; { return (tstruct.d); }
+char  *t_structs_a (tstruct) struct struct1 tstruct; { return (tstruct.a); }
+
+/* Test that calling functions works if there are a lot of arguments.  */
+int
+sum10 (i0, i1, i2, i3, i4, i5, i6, i7, i8, i9)
+     int i0, i1, i2, i3, i4, i5, i6, i7, i8, i9;
+{
+  return i0 + i1 + i2 + i3 + i4 + i5 + i6 + i7 + i8 + i9;
+}
+
+/* Test that args are passed in the right order. */
+int
+cmp10 (i0, i1, i2, i3, i4, i5, i6, i7, i8, i9)
+  int i0, i1, i2, i3, i4, i5, i6, i7, i8, i9;
+{
+  return
+    (i0 == 0) && (i1 == 1) && (i2 == 2) && (i3 == 3) && (i4 == 4) &&
+    (i5 == 5) && (i6 == 6) && (i7 == 7) && (i8 == 8) && (i9 == 9);
+}
+
+
+/* Gotta have a main to be able to generate a linked, runnable
+   executable, and also provide a useful place to set a breakpoint. */
+extern void * malloc() ;
+int main ()
+{
+#ifdef usestubs
+  set_debug_traps();
+  breakpoint();
+#endif
+  malloc(1);
+  t_structs_c(struct_val1);
+  return 0 ;
+}
+
+/* Functions that expect specific values to be passed and return 
+   either 0 or 1, depending upon whether the values were
+   passed incorrectly or correctly, respectively. */
+
+int t_char_values (char_arg1, char_arg2)
+char char_arg1, char_arg2;
+{
+  return ((char_arg1 == char_val1) && (char_arg2 == char_val2));
+}
+
+int
+#ifdef NO_PROTOTYPES
+t_small_values (arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10)
+     char arg1;
+     short arg2;
+     int arg3;
+     char arg4;
+     short arg5;
+     char arg6;
+     short arg7;
+     int arg8;
+     short arg9;
+     short arg10;
+#else
+t_small_values (char arg1, short arg2, int arg3, char arg4, short arg5,
+		char arg6, short arg7, int arg8, short arg9, short arg10)
+#endif
+{
+  return arg1 + arg2 + arg3 + arg4 + arg5 + arg6 + arg7 + arg8 + arg9 + arg10;
+}
+
+int t_short_values (short_arg1, short_arg2)
+short short_arg1, short_arg2;
+{
+  return ((short_arg1 == short_val1) && (short_arg2 == short_val2));
+}
+
+int t_int_values (int_arg1, int_arg2)
+int int_arg1, int_arg2;
+{
+  return ((int_arg1 == int_val1) && (int_arg2 == int_val2));
+}
+
+int t_long_values (long_arg1, long_arg2)
+long long_arg1, long_arg2;
+{
+  return ((long_arg1 == long_val1) && (long_arg2 == long_val2));
+}
+
+int t_float_values (float_arg1, float_arg2)
+float float_arg1, float_arg2;
+{
+  return ((float_arg1 - float_val1) < DELTA
+	  && (float_arg1 - float_val1) > -DELTA
+	  && (float_arg2 - float_val2) < DELTA
+	  && (float_arg2 - float_val2) > -DELTA);
+}
+
+int
+#ifdef NO_PROTOTYPES
+/* In this case we are just duplicating t_float_values, but that is the
+   easiest way to deal with either ANSI or non-ANSI.  */
+t_float_values2 (float_arg1, float_arg2)
+     float float_arg1, float_arg2;
+#else
+t_float_values2 (float float_arg1, float float_arg2)
+#endif
+{
+  return ((float_arg1 - float_val1) < DELTA
+	  && (float_arg1 - float_val1) > -DELTA
+	  && (float_arg2 - float_val2) < DELTA
+	  && (float_arg2 - float_val2) > -DELTA);
+}
+
+int t_double_values (double_arg1, double_arg2)
+double double_arg1, double_arg2;
+{
+  return ((double_arg1 - double_val1) < DELTA
+	  && (double_arg1 - double_val1) > -DELTA
+	  && (double_arg2 - double_val2) < DELTA
+	  && (double_arg2 - double_val2) > -DELTA);
+}
+
+int t_string_values (string_arg1, string_arg2)
+char *string_arg1, *string_arg2;
+{
+  return (!strcmp (string_arg1, string_val1) &&
+	  !strcmp (string_arg2, string_val2));
+}
+
+int t_char_array_values (char_array_arg1, char_array_arg2)
+char char_array_arg1[], char_array_arg2[];
+{
+  return (!strcmp (char_array_arg1, char_array_val1) &&
+	  !strcmp (char_array_arg2, char_array_val2));
+}
+
+
+/* This used to simply compare the function pointer arguments with
+   known values for func_val1 and func_val2.  Doing so is valid ANSI
+   code, but on some machines (RS6000, HPPA, others?) it may fail when
+   called directly by GDB.
+
+   In a nutshell, it's not possible for GDB to determine when the address
+   of a function or the address of the function's stub/trampoline should
+   be passed.
+
+   So, to avoid GDB lossage in the common case, we perform calls through the
+   various function pointers and compare the return values.  For the HPPA
+   at least, this allows the common case to work.
+
+   If one wants to try something more complicated, pass the address of
+   a function accepting a "double" as one of its first 4 arguments.  Call
+   that function indirectly through the function pointer.  This would fail
+   on the HPPA.  */
+
+int t_func_values (func_arg1, func_arg2)
+int (*func_arg1) PARAMS ((int, int));
+int (*func_arg2) PARAMS ((int));
+{
+  return ((*func_arg1) (5,5)  == (*func_val1) (5,5)
+          && (*func_arg2) (6) == (*func_val2) (6));
+}
+
+int t_call_add (func_arg1, a, b)
+int (*func_arg1) PARAMS ((int, int));
+int a, b;
+{
+  return ((*func_arg1)(a, b));
+}