libffi/testsuite/libffi.call/cls_pointer.c

   1 /* Area:                ffi_call, closure_call
   2    Purpose:             Check pointer arguments.
   3    Limitations: none.
   4    PR:                  none.
   5    Originator:  Blake Chaffin 6/6/2007  */
   6
   7 /* { dg-do run { xfail strongarm*-*-* xscale*-*-* } } */
   8 #include "ffitest.h"
   9
  10 void* cls_pointer_fn(void* a1, void* a2)
  11 {
  12         void*   result  = (void*)((intptr_t)a1 + (intptr_t)a2);
  13
  14         printf("0x%08x 0x%08x: 0x%08x\n",
  15                (unsigned int)(uintptr_t) a1,
  16                (unsigned int)(uintptr_t) a2,
  17                (unsigned int)(uintptr_t) result);
  18
  19         return result;
  20 }
  21
  22 static void
  23 cls_pointer_gn(ffi_cif* cif __UNUSED__, void* resp,
  24                void** args, void* userdata __UNUSED__)
  25 {
  26         void*   a1      = *(void**)(args[0]);
  27         void*   a2      = *(void**)(args[1]);
  28
  29         *(void**)resp = cls_pointer_fn(a1, a2);
  30 }
  31
  32 int main (void)
  33 {
  34         ffi_cif cif;
  35         void *code;
  36         ffi_closure*    pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
  37         void*                   args[3];
  38 //      ffi_type                cls_pointer_type;
  39         ffi_type*               arg_types[3];
  40
  41 /*      cls_pointer_type.size = sizeof(void*);
  42         cls_pointer_type.alignment = 0;
  43         cls_pointer_type.type = FFI_TYPE_POINTER;
  44         cls_pointer_type.elements = NULL;*/
  45
  46         void*   arg1    = (void*)0x12345678;
  47         void*   arg2    = (void*)0x89abcdef;
  48         ffi_arg res             = 0;
  49
  50         arg_types[0] = &ffi_type_pointer;
  51         arg_types[1] = &ffi_type_pointer;
  52         arg_types[2] = NULL;
  53
  54         CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &ffi_type_pointer,
  55                 arg_types) == FFI_OK);
  56
  57         args[0] = &arg1;
  58         args[1] = &arg2;
  59         args[2] = NULL;
  60
  61         ffi_call(&cif, FFI_FN(cls_pointer_fn), &res, args);
  62         /* { dg-output "0x12345678 0x89abcdef: 0x9be02467" } */
  63         printf("res: 0x%08x\n", (unsigned int) res);
  64         /* { dg-output "\nres: 0x9be02467" } */
  65
  66         CHECK(ffi_prep_closure_loc(pcl, &cif, cls_pointer_gn, NULL, code) == FFI_OK);
  67
  68         res = (ffi_arg)(uintptr_t)((void*(*)(void*, void*))(code))(arg1, arg2);
  69         /* { dg-output "\n0x12345678 0x89abcdef: 0x9be02467" } */
  70         printf("res: 0x%08x\n", (unsigned int) res);
  71         /* { dg-output "\nres: 0x9be02467" } */
  72
  73         exit(0);
  74 }