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/* Area:        closure_call (stdcall convention)

   Purpose:     Check handling when caller expects stdcall callee

   Limitations: none.

   PR:          none.

   Originator:  <twalljava@dev.java.net> */

/* { dg-do run { target i?86-*-cygwin* i?86-*-mingw* } } */

#include "ffitest.h"

static void

closure_test_stdcall(ffi_cif* cif __UNUSED__, void* resp, void** args,

                 void* userdata)

{

  *(ffi_arg*)resp =

    (int)*(int *)args[0] + (int)(*(int *)args[1])

    + (int)(*(int *)args[2])  + (int)(*(int *)args[3])

    + (int)(intptr_t)userdata;

  printf("%d %d %d %d: %d\n",

         (int)*(int *)args[0], (int)(*(int *)args[1]),

         (int)(*(int *)args[2]), (int)(*(int *)args[3]),

         (int)*(ffi_arg *)resp);

}

typedef int (__stdcall *closure_test_type0)(int, int, int, int);

int main (void)

{

  ffi_cif cif;

  void *code;

  ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);

  ffi_type * cl_arg_types[17];

  int res;

  void* sp_pre;

  void* sp_post;

  char buf[1024];

  cl_arg_types[0] = &ffi_type_uint;

  cl_arg_types[1] = &ffi_type_uint;

  cl_arg_types[2] = &ffi_type_uint;

  cl_arg_types[3] = &ffi_type_uint;

  cl_arg_types[4] = NULL;

  /* Initialize the cif */

  CHECK(ffi_prep_cif(&cif, FFI_STDCALL, 4,

                     &ffi_type_sint, cl_arg_types) == FFI_OK);

  CHECK(ffi_prep_closure_loc(pcl, &cif, closure_test_stdcall,

                             (void *) 3 /* userdata */, code) == FFI_OK);

  asm volatile (" movl %%esp,%0" : "=g" (sp_pre));

  res = (*(closure_test_type0)code)(0, 1, 2, 3);

  asm volatile (" movl %%esp,%0" : "=g" (sp_post));

  /* { dg-output "0 1 2 3: 9" } */

  printf("res: %d\n",res);

  /* { dg-output "\nres: 9" } */

  sprintf(buf, "mismatch: pre=%p vs post=%p", sp_pre, sp_post);

  printf("stack pointer %s\n", (sp_pre == sp_post ? "match" : buf));

  /* { dg-output "\nstack pointer match" } */

  exit(0);

}