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30 lines
905 B
30 lines
905 B
4 months ago
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// RUN: %clangxx_cfi_dso -DSHARED_LIB %s -fPIC -shared -o %dynamiclib %ld_flags_rpath_so
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// RUN: %clangxx_cfi_dso %s -o %t %ld_flags_rpath_exe && %expect_crash %t 2>&1 | FileCheck %s
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// RUN: %clangxx_cfi_dso_diag -g -DSHARED_LIB %s -fPIC -shared -o %dynamiclib %ld_flags_rpath_so
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// RUN: %clangxx_cfi_dso_diag -g %s -o %t %ld_flags_rpath_exe && %t 2>&1 | FileCheck %s --check-prefix=CFI-DIAG
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#include <stdio.h>
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#ifdef SHARED_LIB
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void f() {
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}
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#else
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void f();
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int main() {
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// CHECK-DIAG: =1=
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// CHECK: =1=
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fprintf(stderr, "=1=\n");
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((void (*)(void))f)();
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// CHECK-DIAG: =2=
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// CHECK: =2=
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fprintf(stderr, "=2=\n");
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// CFI-DIAG: runtime error: control flow integrity check for type 'void (int)' failed during indirect function call
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// CFI-DIAG-NEXT: note: f() defined here
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((void (*)(int))f)(42); // UB here
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// CHECK-DIAG: =3=
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// CHECK-NOT: =3=
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fprintf(stderr, "=3=\n");
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}
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#endif
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