lib/lsan/lit_tests/TestCases/use_tls_dynamic.cc

   1 // Test that dynamically allocated TLS space is included in the root set.
   2 // RUN: LSAN_BASE="report_objects=1:use_stacks=0:use_registers=0"
   3 // RUN: %clangxx %p/SharedLibs/huge_tls_lib_so.cc -fPIC -shared -o %t-so.so
   4 // RUN: %clangxx_lsan %s -o %t
   5 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=0" not %t 2>&1 | FileCheck %s
   6 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=1" %t 2>&1
   7 // RUN: LSAN_OPTIONS="" %t 2>&1
   8
   9 #include <assert.h>
  10 #include <dlfcn.h>
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <string>
  14
  15 int main(int argc, char *argv[]) {
  16   std::string path = std::string(argv[0]) + "-so.so";
  17
  18   void *handle = dlopen(path.c_str(), RTLD_LAZY);
  19   assert(handle != 0);
  20   typedef void **(* store_t)(void *p);
  21   store_t StoreToTLS = (store_t)dlsym(handle, "StoreToTLS");
  22   assert(dlerror() == 0);
  23
  24   void *p = malloc(1337);
  25   void **p_in_tls = StoreToTLS(p);
  26   assert(*p_in_tls == p);
  27   fprintf(stderr, "Test alloc: %p.\n", p);
  28   return 0;
  29 }
  30 // CHECK: Test alloc: [[ADDR:.*]].
  31 // CHECK: leaked 1337 byte object at [[ADDR]]
  32 // CHECK: LeakSanitizer: detected memory leaks
  33 // CHECK: SUMMARY: {{(Leak|Address)}}Sanitizer: