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111
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1 /* Area: ffi_call, closure_call
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2 Purpose: Check structure passing with different structure size.
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3 Limitations: none.
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4 PR: none.
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5 Originator: <andreast@gcc.gnu.org> 20030828 */
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6
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7 /* { dg-do run } */
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8 #include "ffitest.h"
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9
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10 typedef struct my_ffi_struct {
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11 double a;
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12 double b;
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13 double c;
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14 } my_ffi_struct;
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15
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16 my_ffi_struct callee(struct my_ffi_struct a1, struct my_ffi_struct a2)
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17 {
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18 struct my_ffi_struct result;
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19 result.a = a1.a + a2.a;
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20 result.b = a1.b + a2.b;
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21 result.c = a1.c + a2.c;
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22
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23
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24 printf("%g %g %g %g %g %g: %g %g %g\n", a1.a, a1.b, a1.c,
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25 a2.a, a2.b, a2.c, result.a, result.b, result.c);
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26
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27 return result;
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28 }
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29
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30 void stub(ffi_cif* cif __UNUSED__, void* resp, void** args,
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31 void* userdata __UNUSED__)
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32 {
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33 struct my_ffi_struct a1;
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34 struct my_ffi_struct a2;
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35
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36 a1 = *(struct my_ffi_struct*)(args[0]);
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37 a2 = *(struct my_ffi_struct*)(args[1]);
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38
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39 *(my_ffi_struct *)resp = callee(a1, a2);
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40 }
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41
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42
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43 int main(void)
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44 {
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45 ffi_type* my_ffi_struct_fields[4];
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46 ffi_type my_ffi_struct_type;
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47 ffi_cif cif;
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48 void *code;
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49 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
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50 void* args[4];
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51 ffi_type* arg_types[3];
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52
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53 struct my_ffi_struct g = { 1.0, 2.0, 3.0 };
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54 struct my_ffi_struct f = { 1.0, 2.0, 3.0 };
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55 struct my_ffi_struct res;
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56
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57 my_ffi_struct_type.size = 0;
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58 my_ffi_struct_type.alignment = 0;
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59 my_ffi_struct_type.type = FFI_TYPE_STRUCT;
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60 my_ffi_struct_type.elements = my_ffi_struct_fields;
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61
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62 my_ffi_struct_fields[0] = &ffi_type_double;
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63 my_ffi_struct_fields[1] = &ffi_type_double;
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64 my_ffi_struct_fields[2] = &ffi_type_double;
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65 my_ffi_struct_fields[3] = NULL;
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66
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67 arg_types[0] = &my_ffi_struct_type;
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68 arg_types[1] = &my_ffi_struct_type;
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69 arg_types[2] = NULL;
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70
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71 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &my_ffi_struct_type,
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72 arg_types) == FFI_OK);
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73
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74 args[0] = &g;
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75 args[1] = &f;
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76 args[2] = NULL;
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77 ffi_call(&cif, FFI_FN(callee), &res, args);
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78 /* { dg-output "1 2 3 1 2 3: 2 4 6" } */
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79 printf("res: %g %g %g\n", res.a, res.b, res.c);
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80 /* { dg-output "\nres: 2 4 6" } */
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81
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82 CHECK(ffi_prep_closure_loc(pcl, &cif, stub, NULL, code) == FFI_OK);
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83
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84 res = ((my_ffi_struct(*)(struct my_ffi_struct, struct my_ffi_struct))(code))(g, f);
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85 /* { dg-output "\n1 2 3 1 2 3: 2 4 6" } */
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86 printf("res: %g %g %g\n", res.a, res.b, res.c);
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87 /* { dg-output "\nres: 2 4 6" } */
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88
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89 exit(0);;
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90 }
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