diff options
Diffstat (limited to 'Modules/_ctypes/libffi/testsuite/libffi.call/closure_thiscall.c')
-rw-r--r-- | Modules/_ctypes/libffi/testsuite/libffi.call/closure_thiscall.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/Modules/_ctypes/libffi/testsuite/libffi.call/closure_thiscall.c b/Modules/_ctypes/libffi/testsuite/libffi.call/closure_thiscall.c new file mode 100644 index 0000000..0f93649 --- /dev/null +++ b/Modules/_ctypes/libffi/testsuite/libffi.call/closure_thiscall.c @@ -0,0 +1,72 @@ +/* Area: closure_call (thiscall convention) + Purpose: Check handling when caller expects thiscall callee + Limitations: none. + PR: none. + Originator: <ktietz@redhat.com> */ + +/* { dg-do run { target i?86-*-cygwin* i?86-*-mingw* } } */ +#include "ffitest.h" + +static void +closure_test_thiscall(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 (__thiscall *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_THISCALL, 4, + &ffi_type_sint, cl_arg_types) == FFI_OK); + + CHECK(ffi_prep_closure_loc(pcl, &cif, closure_test_thiscall, + (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); +} |