/* Area: ffi_call
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Purpose: Test passing struct in variable argument lists.
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Limitations: none.
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PR: none.
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Originator: ARM Ltd. */
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/* { dg-do run } */
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/* { dg-output "" { xfail avr32*-*-* } } */
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#include "ffitest.h"
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#include <stdarg.h>
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struct small_tag
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{
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unsigned char a;
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unsigned char b;
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};
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struct large_tag
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{
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unsigned a;
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unsigned b;
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unsigned c;
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unsigned d;
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unsigned e;
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};
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static struct large_tag
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test_fn (int n, ...)
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{
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va_list ap;
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struct small_tag s1;
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struct small_tag s2;
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struct large_tag l;
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va_start (ap, n);
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s1 = va_arg (ap, struct small_tag);
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l = va_arg (ap, struct large_tag);
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s2 = va_arg (ap, struct small_tag);
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printf ("%u %u %u %u %u %u %u %u %u\n", s1.a, s1.b, l.a, l.b, l.c, l.d, l.e,
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s2.a, s2.b);
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va_end (ap);
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l.a += s1.a;
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l.b += s1.b;
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l.c += s2.a;
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l.d += s2.b;
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return l;
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}
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int
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main (void)
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{
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ffi_cif cif;
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void* args[5];
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ffi_type* arg_types[5];
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ffi_type s_type;
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ffi_type *s_type_elements[3];
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ffi_type l_type;
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ffi_type *l_type_elements[6];
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struct small_tag s1;
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struct small_tag s2;
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struct large_tag l1;
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int n;
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struct large_tag res;
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s_type.size = 0;
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s_type.alignment = 0;
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s_type.type = FFI_TYPE_STRUCT;
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s_type.elements = s_type_elements;
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s_type_elements[0] = &ffi_type_uchar;
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s_type_elements[1] = &ffi_type_uchar;
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s_type_elements[2] = NULL;
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l_type.size = 0;
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l_type.alignment = 0;
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l_type.type = FFI_TYPE_STRUCT;
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l_type.elements = l_type_elements;
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l_type_elements[0] = &ffi_type_uint;
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l_type_elements[1] = &ffi_type_uint;
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l_type_elements[2] = &ffi_type_uint;
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l_type_elements[3] = &ffi_type_uint;
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l_type_elements[4] = &ffi_type_uint;
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l_type_elements[5] = NULL;
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arg_types[0] = &ffi_type_sint;
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arg_types[1] = &s_type;
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arg_types[2] = &l_type;
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arg_types[3] = &s_type;
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arg_types[4] = NULL;
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CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 4, &l_type, arg_types) == FFI_OK);
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s1.a = 5;
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s1.b = 6;
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l1.a = 10;
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l1.b = 11;
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l1.c = 12;
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l1.d = 13;
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l1.e = 14;
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s2.a = 7;
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s2.b = 8;
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n = 41;
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args[0] = &n;
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args[1] = &s1;
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args[2] = &l1;
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args[3] = &s2;
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args[4] = NULL;
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ffi_call(&cif, FFI_FN(test_fn), &res, args);
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/* { dg-output "5 6 10 11 12 13 14 7 8" } */
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printf("res: %d %d %d %d %d\n", res.a, res.b, res.c, res.d, res.e);
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/* { dg-output "\nres: 15 17 19 21 14" } */
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return 0;
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}
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