kc3-lang/libffi/testsuite/libffi.call/struct1.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/struct1.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
  {
    unsigned char uc;
    double d;
    unsigned int ui;
  } test_structure_1;
  
  static test_structure_1 ABI_ATTR struct1(test_structure_1 ts)
  {
    ts.uc++;
    ts.d--;
    ts.ui++;
  
    return ts;
  }
  
  int main (void)
  {
    ffi_cif cif;
    ffi_type *args[MAX_ARGS];
    void *values[MAX_ARGS];
    ffi_type ts1_type;
    ffi_type *ts1_type_elements[4];
  
    test_structure_1 ts1_arg;
  
    /* This is a hack to get a properly aligned result buffer */
    test_structure_1 *ts1_result =
      (test_structure_1 *) malloc (sizeof(test_structure_1));
  
    ts1_type.size = 0;
    ts1_type.alignment = 0;
    ts1_type.type = FFI_TYPE_STRUCT;
    ts1_type.elements = ts1_type_elements;
    ts1_type_elements[0] = &ffi_type_uchar;
    ts1_type_elements[1] = &ffi_type_double;
    ts1_type_elements[2] = &ffi_type_uint;
    ts1_type_elements[3] = NULL;
    
    args[0] = &ts1_type;
    values[0] = &ts1_arg;
    
    /* Initialize the cif */
    CHECK(ffi_prep_cif(&cif, ABI_NUM, 1,
  		     &ts1_type, args) == FFI_OK);
    
    ts1_arg.uc = '\x01';
    ts1_arg.d = 3.14159;
    ts1_arg.ui = 555;
  
    ffi_call(&cif, FFI_FN(struct1), ts1_result, values);
    
    CHECK(ts1_result->ui == 556);
    CHECK(ts1_result->d == 3.14159 - 1);
   
    free (ts1_result);
    exit(0);
  }
  

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