compiler-rt/test/cfi/cross-dso/stats.cpp

   1 // RUN: %clangxx_cfi_dso -DSHARED_LIB -fPIC -g -fsanitize-stats -shared -o %t.so %s
   2 // RUN: %clangxx_cfi_dso -g -fsanitize-stats -o %t %s %t.so
   3 // RUN: env SANITIZER_STATS_PATH=%t.stats %t
   4 // RUN: sanstats %t.stats | FileCheck %s
   5
   6 // CFI-icall is not implemented in thinlto mode => ".cfi" suffixes are missing
   7 // in sanstats output.
   8
   9 // FIXME: %t.stats must be transferred from device to host for this to work on Android.
  10 // XFAIL: android
  11
  12 struct ABase {};
  13
  14 struct A : ABase {
  15   virtual void vf() {}
  16   void nvf() {}
  17 };
  18
  19 extern "C" void vcall(A *a);
  20 extern "C" void nvcall(A *a);
  21
  22 #ifdef SHARED_LIB
  23
  24 extern "C" __attribute__((noinline)) void vcall(A *a) {
  25   // CHECK-DAG: stats.cpp:[[@LINE+1]] vcall.cfi cfi-vcall 37
  26   a->vf();
  27 }
  28
  29 extern "C" __attribute__((noinline)) void nvcall(A *a) {
  30   // CHECK-DAG: stats.cpp:[[@LINE+1]] nvcall.cfi cfi-nvcall 51
  31   a->nvf();
  32 }
  33
  34 #else
  35
  36 extern "C" __attribute__((noinline)) A *dcast(A *a) {
  37   // CHECK-DAG: stats.cpp:[[@LINE+1]] dcast.cfi cfi-derived-cast 24
  38   return (A *)(ABase *)a;
  39 }
  40
  41 extern "C" __attribute__((noinline)) A *ucast(A *a) {
  42   // CHECK-DAG: stats.cpp:[[@LINE+1]] ucast.cfi cfi-unrelated-cast 81
  43   return (A *)(char *)a;
  44 }
  45
  46 extern "C" __attribute__((noinline)) void unreachable(A *a) {
  47   // CHECK-NOT: unreachable
  48   a->vf();
  49 }
  50
  51 int main() {
  52   A a;
  53   for (unsigned i = 0; i != 37; ++i)
  54     vcall(&a);
  55   for (unsigned i = 0; i != 51; ++i)
  56     nvcall(&a);
  57   for (unsigned i = 0; i != 24; ++i)
  58     dcast(&a);
  59   for (unsigned i = 0; i != 81; ++i)
  60     ucast(&a);
  61   for (unsigned i = 0; i != 0; ++i)
  62     unreachable(&a);
  63 }
  64
  65 #endif