compiler-rt/test/tsan/munmap_invalid.cpp

   1 // RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
   2
   3 // Fails on Darwin bots:
   4 // https://green.lab.llvm.org/green//job/clang-stage1-RA/25954/consoleFull
   5 // and on clang-s390x-linux-lnt:
   6 // https://lab.llvm.org/buildbot#builders/45/builds/5224
   7 // Presumably the test is not 100% legal and kernel is allowed
   8 // to unmap part of the range (e.g. .text) and then fail.
   9 // So let's be conservative:
  10 // REQUIRES: linux, x86_64-target-arch
  11
  12 #include "test.h"
  13 #include <sys/mman.h>
  14
  15 int main() {
  16   // These bogus munmap's must not crash tsan runtime.
  17   munmap(0, 1);
  18   munmap(0, -1);
  19   munmap((void *)main, -1);
  20   void *p =
  21       mmap(0, 4096, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0);
  22   munmap(p, (1ull << 60));
  23   munmap(p, -10000);
  24   munmap(p, 0);
  25   fprintf(stderr, "DONE\n");
  26   return 0;
  27 }
  28
  29 // CHECK: DONE