36 lines · cpp
1// RUN: mkdir -p %t.dir && cd %t.dir2// RUN: %clangxx_cfi_dso -DSHARED_LIB %s -fPIC -shared -o %dynamiclib %ld_flags_rpath_so3// RUN: %clangxx_cfi_dso %s -o %t.dir/exe %ld_flags_rpath_exe && %expect_crash %t.dir/exe 2>&1 | FileCheck %s4 5// RUN: %clangxx_cfi_dso_diag -g -DSHARED_LIB %s -fPIC -shared -o %dynamiclib %ld_flags_rpath_so6// RUN: %clangxx_cfi_dso_diag -g %s -o %t.dir/exe %ld_flags_rpath_exe && %t.dir/exe 2>&1 | FileCheck %s --check-prefix=CFI-DIAG7 8#include <stdio.h>9 10#ifdef SHARED_LIB11void g();12void f() {13 // CHECK-DIAG: =1=14 // CHECK: =1=15 fprintf(stderr, "=1=\n");16 ((void (*)(void))g)();17 // CHECK-DIAG: =2=18 // CHECK: =2=19 fprintf(stderr, "=2=\n");20 // CFI-DIAG: runtime error: control flow integrity check for type 'void (int)' failed during indirect function call21 // CFI-DIAG-NEXT: note: g() defined here22 ((void (*)(int))g)(42); // UB here23 // CHECK-DIAG: =3=24 // CHECK-NOT: =3=25 fprintf(stderr, "=3=\n");26}27#else28void f();29void g() {30}31 32int main() {33 f();34}35#endif36