compiler-rt/test/lsan/TestCases/Linux/use_tls_pthread_specific_dynamic.cpp

   1 // Test that dynamically allocated thread-specific storage is included in the root set.
   2 // RUN: %clangxx_lsan %s -o %t
   3 // RUN: %env_lsan_opts="report_objects=1:use_stacks=0:use_registers=0:use_tls=0" not %run %t 2>&1 | FileCheck %s
   4 // RUN: %env_lsan_opts="report_objects=1:use_stacks=0:use_registers=0:use_tls=1" %run %t 2>&1
   5 // RUN: %env_lsan_opts="" %run %t 2>&1
   6
   7 // Investigate why it does not fail with use_tls=0
   8 // UNSUPPORTED: arm-linux || armhf-linux
   9
  10 #include <assert.h>
  11 #include <pthread.h>
  12 #include <stdio.h>
  13 #include <stdlib.h>
  14 #include "sanitizer_common/print_address.h"
  15
  16 // From glibc: this many keys are stored in the thread descriptor directly.
  17 const unsigned PTHREAD_KEY_2NDLEVEL_SIZE = 32;
  18
  19 int main() {
  20   static const unsigned kDummyKeysCount = PTHREAD_KEY_2NDLEVEL_SIZE;
  21   int res;
  22   pthread_key_t dummy_keys[kDummyKeysCount];
  23   for (unsigned i = 0; i < kDummyKeysCount; i++) {
  24     res = pthread_key_create(&dummy_keys[i], NULL);
  25     assert(res == 0);
  26   }
  27   pthread_key_t key;
  28   res = pthread_key_create(&key, NULL);
  29   assert(key >= PTHREAD_KEY_2NDLEVEL_SIZE);
  30   assert(res == 0);
  31   void *p  = malloc(1337);
  32   res = pthread_setspecific(key, p);
  33   assert(res == 0);
  34   print_address("Test alloc: ", 1, p);
  35   return 0;
  36 }
  37 // CHECK: Test alloc: [[ADDR:0x[0-9,a-f]+]]
  38 // CHECK: LeakSanitizer: detected memory leaks
  39 // CHECK: [[ADDR]] (1337 bytes)
  40 // CHECK: SUMMARY: {{(Leak|Address)}}Sanitizer: