c3-lang/libffi/testsuite/libffi.call/pr1172638.c

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• Hash : 5cd411ad
  Author :
  Date : 2015-01-13T15:44:03
  

  New test case for old aarch64 bug

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• testsuite/libffi.call/pr1172638.c

• /* Area:	ffi_call
     Purpose:	Reproduce bug found in python ctypes
     Limitations:	none.
     PR:		Fedora 1174037  */
  
  /* { dg-do run } */
  #include "ffitest.h"
  
  typedef struct {
    long x;
    long y;
  } POINT;
  
  typedef struct {
    long left;
    long top;
    long right;
    long bottom;
  } RECT;
  
  static RECT ABI_ATTR pr_test(int i __UNUSED__, RECT ar __UNUSED__, 
  			     RECT* br __UNUSED__, POINT cp __UNUSED__, 
  			     RECT dr __UNUSED__, RECT *er __UNUSED__, 
  			     POINT fp, RECT gr __UNUSED__)
  {
    RECT result;
  
    result.left = fp.x;
    result.right = fp.y;
    result.top = fp.x;
    result.bottom = fp.y;
  
    return result;
  }
  
  int main (void)
  {
    ffi_cif cif;
    ffi_type *args[MAX_ARGS];
    void *values[MAX_ARGS];
    ffi_type point_type, rect_type;
    ffi_type *point_type_elements[3];  
    ffi_type *rect_type_elements[5];  
    
    int i;
    POINT cp, fp;
    RECT ar, br, dr, er, gr; 
    RECT *p1, *p2;
  
    /* This is a hack to get a properly aligned result buffer */
    RECT *rect_result =
      (RECT *) malloc (sizeof(RECT));
  
    point_type.size = 0;
    point_type.alignment = 0;
    point_type.type = FFI_TYPE_STRUCT;
    point_type.elements = point_type_elements;
    point_type_elements[0] = &ffi_type_slong;
    point_type_elements[1] = &ffi_type_slong;
    point_type_elements[2] = NULL;
  
    rect_type.size = 0;
    rect_type.alignment = 0;
    rect_type.type = FFI_TYPE_STRUCT;
    rect_type.elements = rect_type_elements;
    rect_type_elements[0] = &ffi_type_slong;
    rect_type_elements[1] = &ffi_type_slong;
    rect_type_elements[2] = &ffi_type_slong;
    rect_type_elements[3] = &ffi_type_slong;
    rect_type_elements[4] = NULL;
  
    args[0] = &ffi_type_sint;
    args[1] = &rect_type;
    args[2] = &ffi_type_pointer;
    args[3] = &point_type;
    args[4] = &rect_type;
    args[5] = &ffi_type_pointer;
    args[6] = &point_type;
    args[7] = &rect_type;
    
    /* Initialize the cif */
    CHECK(ffi_prep_cif(&cif, ABI_NUM, 8, &rect_type, args) == FFI_OK);
  
    i = 1;
    ar.left = 2;
    ar.right = 3;
    ar.top = 4;
    ar.bottom = 5;
    br.left = 6;
    br.right = 7;
    br.top = 8;
    br.bottom = 9;
    cp.x = 10;
    cp.y = 11;
    dr.left = 12;
    dr.right = 13;
    dr.top = 14;
    dr.bottom = 15;
    er.left = 16;
    er.right = 17;
    er.top = 18;
    er.bottom = 19;
    fp.x = 20;
    fp.y = 21;
    gr.left = 22;
    gr.right = 23;
    gr.top = 24;
    gr.bottom = 25;
    
    values[0] = &i;
    values[1] = &ar;
    p1 = &br;
    values[2] = &p1;
    values[3] = &cp;
    values[4] = &dr;
    p2 = &er;
    values[5] = &p2;
    values[6] = &fp;
    values[7] = &gr;
  
    ffi_call (&cif, FFI_FN(pr_test), rect_result, values);
    
    CHECK(rect_result->top == 20);
   
    free (rect_result);
    exit(0);
  }
  

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