File: cross-dso-diagnostic.cpp

package info (click to toggle)
swiftlang 6.1.3-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,532 kB
  • sloc: cpp: 9,901,743; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (47 lines) | stat: -rw-r--r-- 1,394 bytes parent folder | download | duplicates (20)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
// Check that cross-DSO diagnostics print the names of both modules

// RUN: %clangxx_cfi_diag -g -DSHARED_LIB -fPIC -shared -o %dynamiclib %s %ld_flags_rpath_so
// RUN: %clangxx_cfi_diag -g -o %t_exe_suffix %s %ld_flags_rpath_exe
// RUN: %t_exe_suffix 2>&1 | FileCheck -DDSONAME=%xdynamiclib_namespec %s

// UNSUPPORTED: target={{.*windows-msvc.*}}
// REQUIRES: cxxabi

#include <dlfcn.h>
#include <stdio.h>

struct S1 {
  virtual void f1();
};

#ifdef SHARED_LIB

void S1::f1() {}

__attribute__((visibility("default"))) extern "C"
void* dso_symbol() { return new S1(); }

#else

int main() {
  void* (*fp)(void) =
      reinterpret_cast<void*(*)(void)>(dlsym(RTLD_DEFAULT, "dso_symbol"));
  if (!fp) {
    perror("failed to resolve dso_symbol");
    return 1;
  }

  // CHECK: runtime error: control flow integrity check for type 'void *()' failed during indirect function call
  // CHECK: dso_symbol defined here
  // CHECK: check failed in {{.*}}_exe_suffix, destination function located in {{.*}}[[DSONAME]]
  void *S = fp(); // trigger cfi-icall failure

  // CHECK: runtime error: control flow integrity check for type 'S1' failed during cast to unrelated type
  // CHECK: invalid vtable
  // CHECK: check failed in {{.*}}_exe_suffix, vtable located in {{.*}}[[DSONAME]]
  S1 *Scast = reinterpret_cast<S1*>(S); // trigger cfi-unrelated-cast failure

  return 0;
}

#endif // SHARED_LIB