c3-lang/libffi/testsuite/libffi.call/va_3.c

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• Hash : de95947a
  Author :
  Date : 2022-05-24T03:04:43
  

  Fix check for invalid varargs arguments. (#707)

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• testsuite/libffi.call/va_3.c

• /* Area:		ffi_call
     Purpose:		Test function with multiple fixed args and variable argument list.
     Limitations:	none.
     PR:			none.
     Originator:	        ARM Ltd., Oracle */
  
  /* { dg-do run } */
  /* { dg-output "" { xfail avr32*-*-* m68k-*-* } } */
  
  #include "ffitest.h"
  #include <stdarg.h>
  
  /*
   * This is a modified version of va_2.c that has fixed arguments with "small" types that
   * are not allowed as variable arguments, but they should be still allowed as fixed args.
   */
  
  static int
  test_fn (char a1, float a2, int n, ...)
  {
    va_list ap;
    unsigned char uc;
    signed char sc;
    unsigned short us;
    signed short ss;
    unsigned int ui;
    signed int si;
    unsigned long ul;
    signed long sl;
    float f;
    double d;
  
    va_start (ap, n);
  
    uc = va_arg (ap, unsigned);
    sc = va_arg (ap, signed);
  
    us = va_arg (ap, unsigned);
    ss = va_arg (ap, signed);
  
    ui = va_arg (ap, unsigned int);
    si = va_arg (ap, signed int);
  
    ul = va_arg (ap, unsigned long);
    sl = va_arg (ap, signed long);
  
    f = va_arg (ap, double);	/* C standard promotes float->double
  				   when anonymous */
    d = va_arg (ap, double);
  
    printf ("%d %f uc=%u sc=%d %u %d %u %d %lu %ld %f %f\n",
  	  a1, a2,
  	  uc, sc,
  	  us, ss,
  	  ui, si,
  	  ul, sl,
  	  f, d);
  
    va_end (ap);
  
    CHECK(a1 == 1);
    CHECK((int)a2 == 2);
    CHECK(uc == 9);
    CHECK(sc == 10);
    CHECK(us == 11);
    CHECK(ss == 12);
    CHECK(ui == 13);
    CHECK(si == 14);
    CHECK(ul == 15);
    CHECK(sl == 16);
    CHECK((int)f == 2);
    CHECK((int)d == 3);
  
    return n + 1;
  }
  
  int
  main (void)
  {
    ffi_cif cif;
    void* args[14];
    ffi_type* arg_types[14];
  
    char a1;
    float a2;
    int n;
    ffi_arg res;
  
    unsigned int uc;
    signed int sc;
    unsigned int us;
    signed int ss;
    unsigned int ui;
    signed int si;
    unsigned long ul;
    signed long sl;
    double d1;
    double f1;
  
    arg_types[0] = &ffi_type_schar;
    arg_types[1] = &ffi_type_float;
    arg_types[2] = &ffi_type_sint;
    arg_types[3] = &ffi_type_uint;
    arg_types[4] = &ffi_type_sint;
    arg_types[5] = &ffi_type_uint;
    arg_types[6] = &ffi_type_sint;
    arg_types[7] = &ffi_type_uint;
    arg_types[8] = &ffi_type_sint;
    arg_types[9] = &ffi_type_ulong;
    arg_types[10] = &ffi_type_slong;
    arg_types[11] = &ffi_type_double;
    arg_types[12] = &ffi_type_double;
    arg_types[13] = NULL;
  
    CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 3, 13, &ffi_type_sint, arg_types) == FFI_OK);
  
    a1 = 1;
    a2 = 2.0f;
    n = 41;
  
    uc = 9;
    sc = 10;
    us = 11;
    ss = 12;
    ui = 13;
    si = 14;
    ul = 15;
    sl = 16;
    f1 = 2.12;
    d1 = 3.13;
  
    args[0] = &a1;
    args[1] = &a2;
    args[2] = &n;
    args[3] = &uc;
    args[4] = &sc;
    args[5] = &us;
    args[6] = &ss;
    args[7] = &ui;
    args[8] = &si;
    args[9] = &ul;
    args[10] = &sl;
    args[11] = &f1;
    args[12] = &d1;
    args[13] = NULL;
  
    ffi_call(&cif, FFI_FN(test_fn), &res, args);
    /* { dg-output "1 2.000000 uc=9 sc=10 11 12 13 14 15 16 2.120000 3.130000" } */
    printf("res: %d\n", (int) res);
    /* { dg-output "\nres: 42" } */
    CHECK(res == 42);
  
    return 0;
  }
  

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