143 lines
4.1 KiB
C
143 lines
4.1 KiB
C
/* Area: ffi_call, closure_call
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Purpose: Check pointer arguments across multiple hideous stack frames.
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Limitations: none.
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PR: none.
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Originator: Blake Chaffin 6/7/2007 */
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/* { dg-do run { xfail strongarm*-*-* xscale*-*-* } } */
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#include "ffitest.h"
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static long dummyVar;
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long dummy_func(
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long double a1, char b1,
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long double a2, char b2,
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long double a3, char b3,
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long double a4, char b4)
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{
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return a1 + b1 + a2 + b2 + a3 + b3 + a4 + b4;
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}
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void* cls_pointer_fn2(void* a1, void* a2)
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{
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long double trample1 = (intptr_t)a1 + (intptr_t)a2;
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char trample2 = ((char*)&a1)[0] + ((char*)&a2)[0];
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long double trample3 = (intptr_t)trample1 + (intptr_t)a1;
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char trample4 = trample2 + ((char*)&a1)[1];
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long double trample5 = (intptr_t)trample3 + (intptr_t)a2;
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char trample6 = trample4 + ((char*)&a2)[1];
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long double trample7 = (intptr_t)trample5 + (intptr_t)trample1;
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char trample8 = trample6 + trample2;
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void* result;
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dummyVar = dummy_func(trample1, trample2, trample3, trample4,
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trample5, trample6, trample7, trample8);
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result = (void*)((intptr_t)a1 + (intptr_t)a2);
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printf("0x%08x 0x%08x: 0x%08x\n",
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(unsigned int)(uintptr_t) a1,
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(unsigned int)(uintptr_t) a2,
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(unsigned int)(uintptr_t) result);
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return result;
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}
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void* cls_pointer_fn1(void* a1, void* a2)
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{
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long double trample1 = (intptr_t)a1 + (intptr_t)a2;
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char trample2 = ((char*)&a1)[0] + ((char*)&a2)[0];
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long double trample3 = (intptr_t)trample1 + (intptr_t)a1;
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char trample4 = trample2 + ((char*)&a1)[1];
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long double trample5 = (intptr_t)trample3 + (intptr_t)a2;
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char trample6 = trample4 + ((char*)&a2)[1];
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long double trample7 = (intptr_t)trample5 + (intptr_t)trample1;
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char trample8 = trample6 + trample2;
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void* result;
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dummyVar = dummy_func(trample1, trample2, trample3, trample4,
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trample5, trample6, trample7, trample8);
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result = (void*)((intptr_t)a1 + (intptr_t)a2);
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printf("0x%08x 0x%08x: 0x%08x\n",
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(unsigned int)(intptr_t) a1,
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(unsigned int)(intptr_t) a2,
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(unsigned int)(intptr_t) result);
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result = cls_pointer_fn2(result, a1);
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return result;
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}
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static void
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cls_pointer_gn(ffi_cif* cif __UNUSED__, void* resp,
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void** args, void* userdata __UNUSED__)
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{
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void* a1 = *(void**)(args[0]);
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void* a2 = *(void**)(args[1]);
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long double trample1 = (intptr_t)a1 + (intptr_t)a2;
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char trample2 = ((char*)&a1)[0] + ((char*)&a2)[0];
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long double trample3 = (intptr_t)trample1 + (intptr_t)a1;
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char trample4 = trample2 + ((char*)&a1)[1];
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long double trample5 = (intptr_t)trample3 + (intptr_t)a2;
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char trample6 = trample4 + ((char*)&a2)[1];
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long double trample7 = (intptr_t)trample5 + (intptr_t)trample1;
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char trample8 = trample6 + trample2;
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dummyVar = dummy_func(trample1, trample2, trample3, trample4,
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trample5, trample6, trample7, trample8);
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*(void**)resp = cls_pointer_fn1(a1, a2);
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}
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int main (void)
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{
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ffi_cif cif;
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void *code;
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ffi_closure* pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
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void* args[3];
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// ffi_type cls_pointer_type;
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ffi_type* arg_types[3];
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/* cls_pointer_type.size = sizeof(void*);
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cls_pointer_type.alignment = 0;
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cls_pointer_type.type = FFI_TYPE_POINTER;
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cls_pointer_type.elements = NULL;*/
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void* arg1 = (void*)0x01234567;
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void* arg2 = (void*)0x89abcdef;
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ffi_arg res = 0;
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arg_types[0] = &ffi_type_pointer;
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arg_types[1] = &ffi_type_pointer;
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arg_types[2] = NULL;
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CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &ffi_type_pointer,
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arg_types) == FFI_OK);
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args[0] = &arg1;
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args[1] = &arg2;
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args[2] = NULL;
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printf("\n");
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ffi_call(&cif, FFI_FN(cls_pointer_fn1), &res, args);
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printf("res: 0x%08x\n", (unsigned int) res);
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// { dg-output "\n0x01234567 0x89abcdef: 0x8acf1356" }
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// { dg-output "\n0x8acf1356 0x01234567: 0x8bf258bd" }
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// { dg-output "\nres: 0x8bf258bd" }
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CHECK(ffi_prep_closure_loc(pcl, &cif, cls_pointer_gn, NULL, code) == FFI_OK);
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res = (ffi_arg)(uintptr_t)((void*(*)(void*, void*))(code))(arg1, arg2);
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printf("res: 0x%08x\n", (unsigned int) res);
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// { dg-output "\n0x01234567 0x89abcdef: 0x8acf1356" }
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// { dg-output "\n0x8acf1356 0x01234567: 0x8bf258bd" }
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// { dg-output "\nres: 0x8bf258bd" }
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exit(0);
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}
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