jni/ruby/ext/fiddle/libffi-3.2.1/testsuite/libffi.call/cls_pointer.c


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/* Area:                ffi_call, closure_call
   Purpose:             Check pointer arguments.
   Limitations: none.
   PR:                  none.
   Originator:  Blake Chaffin 6/6/2007  */

/* { dg-do run { xfail strongarm*-*-* xscale*-*-* } } */
#include "ffitest.h"

void* cls_pointer_fn(void* a1, void* a2)
{
        void*   result  = (void*)((intptr_t)a1 + (intptr_t)a2);

        printf("0x%08x 0x%08x: 0x%08x\n", 
               (unsigned int)(uintptr_t) a1,
               (unsigned int)(uintptr_t) a2,
               (unsigned int)(uintptr_t) result);

        return result;
}

static void
cls_pointer_gn(ffi_cif* cif __UNUSED__, void* resp, 
               void** args, void* userdata __UNUSED__)
{
        void*   a1      = *(void**)(args[0]);
        void*   a2      = *(void**)(args[1]);

        *(void**)resp = cls_pointer_fn(a1, a2);
}

int main (void)
{
        ffi_cif cif;
        void *code;
        ffi_closure*    pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
        void*                   args[3];
        /*      ffi_type                cls_pointer_type; */
        ffi_type*               arg_types[3];

/*      cls_pointer_type.size = sizeof(void*);
        cls_pointer_type.alignment = 0;
        cls_pointer_type.type = FFI_TYPE_POINTER;
        cls_pointer_type.elements = NULL;*/

        void*   arg1    = (void*)0x12345678;
        void*   arg2    = (void*)0x89abcdef;
        ffi_arg res             = 0;

        arg_types[0] = &ffi_type_pointer;
        arg_types[1] = &ffi_type_pointer;
        arg_types[2] = NULL;

        CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &ffi_type_pointer,
                arg_types) == FFI_OK);

        args[0] = &arg1;
        args[1] = &arg2;
        args[2] = NULL;

        ffi_call(&cif, FFI_FN(cls_pointer_fn), &res, args);
        /* { dg-output "0x12345678 0x89abcdef: 0x9be02467" } */
        printf("res: 0x%08x\n", (unsigned int) res);
        /* { dg-output "\nres: 0x9be02467" } */

        CHECK(ffi_prep_closure_loc(pcl, &cif, cls_pointer_gn, NULL, code) == FFI_OK);

        res = (ffi_arg)(uintptr_t)((void*(*)(void*, void*))(code))(arg1, arg2);
        /* { dg-output "\n0x12345678 0x89abcdef: 0x9be02467" } */
        printf("res: 0x%08x\n", (unsigned int) res);
        /* { dg-output "\nres: 0x9be02467" } */

        exit(0);
}