text: // RUN: %clangxx_asan -O0 -fno-builtin %s -o %t
  // RUN: not %run %t 2>&1 | FileCheck %s
  // RUN: echo "interceptor_via_fun:bad_function" > %t.supp
  // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
  // RUN: echo "interceptor_name:strncat" > %t.supp
  // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
  //
  // RUN: %clangxx_asan -O1 -fno-builtin %s -o %t
  // RUN: not %run %t 2>&1 | FileCheck %s
  // RUN: echo "interceptor_via_fun:bad_function" > %t.supp
  // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
  // RUN: echo "interceptor_name:strncat" > %t.supp
  // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
  //
  // RUN: %clangxx_asan -O2 -fno-builtin %s -o %t
  // RUN: not %run %t 2>&1 | FileCheck %s
  // RUN: echo "interceptor_via_fun:bad_function" > %t.supp
  // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
  // RUN: echo "interceptor_name:strncat" > %t.supp
  // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
  //
  // RUN: %clangxx_asan -O3 -fno-builtin %s -o %t
  // RUN: not %run %t 2>&1 | FileCheck %s
  // RUN: echo "interceptor_via_fun:bad_function" > %t.supp
  // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
  // RUN: echo "interceptor_name:strncat" > %t.supp
  // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
  
  // UNSUPPORTED: android
  
  #include <string.h>
  
  
  // Don't inline function otherwise stacktrace changes.
  __attribute__((noinline)) void bad_function() {
    char buffer[] = "hello\0XXX";
    // CHECK: strncat-param-overlap: memory ranges
    // CHECK: [{{0x.*,[ ]*0x.*}}) and [{{0x.*,[ ]*0x.*}}) overlap
    // CHECK: {{#0 0x.* in .*strncat}}
    // CHECK: {{#1 0x.* in bad_function.*strncat-overlap.cpp:}}[[@LINE+2]]
    // CHECK: {{#2 0x.* in main .*strncat-overlap.cpp:}}[[@LINE+5]]
    strncat(buffer, buffer + 1, 3); // BOOM
  }
  
  int main(int argc, char **argv) {
    bad_function();
    return 0;
  }