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Brian Fiete 2019-08-23 11:56:54 -07:00
parent c74712dad9
commit 078564ac9e
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72
BeefySysLib/third_party/libffi/testsuite/libffi.call/closure_stdcall.c vendored Normal file
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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);
#ifdef _MSC_VER
__asm { mov sp_pre, esp }
#else
asm volatile (" movl %%esp,%0" : "=g" (sp_pre));
#endif
res = (*(closure_test_type0)code)(0, 1, 2, 3);
#ifdef _MSC_VER
__asm { mov sp_post, esp }
#else
asm volatile (" movl %%esp,%0" : "=g" (sp_post));
#endif
/* { 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);
}