lib/asan/lit_tests/TestCases/initialization-nobug.cc

   1 // A collection of various initializers which shouldn't trip up initialization
   2 // order checking.  If successful, this will just return 0.
   3
   4 // RUN: %clangxx_asan -O0 %s %p/Helpers/initialization-nobug-extra.cc -fsanitize=init-order -o %t
   5 // RUN: ASAN_OPTIONS=check_initialization_order=true %t 2>&1
   6 // RUN: %clangxx_asan -O1 %s %p/Helpers/initialization-nobug-extra.cc -fsanitize=init-order -o %t
   7 // RUN: ASAN_OPTIONS=check_initialization_order=true %t 2>&1
   8 // RUN: %clangxx_asan -O2 %s %p/Helpers/initialization-nobug-extra.cc -fsanitize=init-order -o %t
   9 // RUN: ASAN_OPTIONS=check_initialization_order=true %t 2>&1
  10 // RUN: %clangxx_asan -O3 %s %p/Helpers/initialization-nobug-extra.cc -fsanitize=init-order -o %t
  11 // RUN: ASAN_OPTIONS=check_initialization_order=true %t 2>&1
  12
  13 // Simple access:
  14 // Make sure that accessing a global in the same TU is safe
  15
  16 bool condition = true;
  17 int initializeSameTU() {
  18   return condition ? 0x2a : 052;
  19 }
  20 int sameTU = initializeSameTU();
  21
  22 // Linker initialized:
  23 // Check that access to linker initialized globals originating from a different
  24 // TU's initializer is safe.
  25
  26 int A = (1 << 1) + (1 << 3) + (1 << 5), B;
  27 int getAB() {
  28   return A * B;
  29 }
  30
  31 // Function local statics:
  32 // Check that access to function local statics originating from a different
  33 // TU's initializer is safe.
  34
  35 int countCalls() {
  36   static int calls;
  37   return ++calls;
  38 }
  39
  40 // Trivial constructor, non-trivial destructor.
  41 struct StructWithDtor {
  42   ~StructWithDtor() { }
  43   int value;
  44 };
  45 StructWithDtor struct_with_dtor;
  46 int getStructWithDtorValue() { return struct_with_dtor.value; }
  47
  48 int main() { return 0; }