kc3-lang/libffi/testsuite/libffi.call/struct2.c

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• Hash : e48918ec
  Author :
  Date : 2014-03-16T20:29:27
  

  testsuite: Add ABIs to the test matrix; unify tests across ABIs
  
  This eliminates all the *_win32.c tests in favor of the tests they were
  branched from, and expands test coverage to run many more tests on
  stdcall, thiscall, and fastcall.
  
  This same mechanism also supports testing any other target that has
  multiple ABIs.
  

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• testsuite/libffi.call/struct2.c

• /* Area:	ffi_call
     Purpose:	Check structures.
     Limitations:	none.
     PR:		none.
     Originator:	From the original ffitest.c  */
  
  /* { dg-do run } */
  #include "ffitest.h"
  
  typedef struct
  {
    double d1;
    double d2;
  } test_structure_2;
  
  static test_structure_2 ABI_ATTR struct2(test_structure_2 ts)
  {
    ts.d1--;
    ts.d2--;
  
    return ts;
  }
  
  int main (void)
  {
    ffi_cif cif;
    ffi_type *args[MAX_ARGS];
    void *values[MAX_ARGS];
    test_structure_2 ts2_arg;
    ffi_type ts2_type;
    ffi_type *ts2_type_elements[3];
  
    /* This is a hack to get a properly aligned result buffer */
    test_structure_2 *ts2_result =
      (test_structure_2 *) malloc (sizeof(test_structure_2));
  
    ts2_type.size = 0;
    ts2_type.alignment = 0;
    ts2_type.type = FFI_TYPE_STRUCT;
    ts2_type.elements = ts2_type_elements;
    ts2_type_elements[0] = &ffi_type_double;
    ts2_type_elements[1] = &ffi_type_double;
    ts2_type_elements[2] = NULL;
  
    args[0] = &ts2_type;
    values[0] = &ts2_arg;
    
    /* Initialize the cif */
    CHECK(ffi_prep_cif(&cif, ABI_NUM, 1, &ts2_type, args) == FFI_OK);
    
    ts2_arg.d1 = 5.55;
    ts2_arg.d2 = 6.66;
    
    printf ("%g\n", ts2_arg.d1);
    printf ("%g\n", ts2_arg.d2);
    
    ffi_call(&cif, FFI_FN(struct2), ts2_result, values);
    
    printf ("%g\n", ts2_result->d1);
    printf ("%g\n", ts2_result->d2);
    
    CHECK(ts2_result->d1 == 5.55 - 1);
    CHECK(ts2_result->d2 == 6.66 - 1);
    
    free (ts2_result);
    exit(0);
  }
  

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