compiler-rt/test/asan/TestCases/Darwin/odr-lto.cpp

   1 // Check that -asan-use-private-alias silence the false
   2 // positive ODR violation on Darwin with LTO.
   3
   4 // REQUIRES: lto
   5
   6 // RUN: %clangxx_asan -DPART=0 -c %s -o %t-1.o -flto -mllvm -asan-use-private-alias
   7 // RUN: %clangxx_asan -DPART=1 -c %s -o %t-2.o -flto -mllvm -asan-use-private-alias
   8 // RUN: %clangxx_asan_lto %t-1.o %t-2.o -o %t -flto
   9 // RUN: %run %t 2>&1 | FileCheck %s
  10
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 void putstest();
  14
  15 #if PART == 1
  16
  17 static const char *my_global = "test\n\00abc";
  18
  19 int main()
  20 {
  21   fputs(my_global, stderr);
  22   putstest();
  23   fprintf(stderr, "Done.\n");
  24   return 0;
  25 }
  26
  27 #else // PART == 1
  28
  29 static const char *my_other_global = "test\n\00abc";
  30
  31 void putstest()
  32 {
  33   fputs(my_other_global, stderr);
  34 }
  35
  36 #endif // PART == 1
  37
  38 // CHECK-NOT: ERROR: AddressSanitizer: odr-violation
  39 // CHECK: Done.