compiler-rt/test/lsan/TestCases/Linux/cleanup_in_tsd_destructor.c

   1 // Regression test for thread lifetime tracking. Thread data should be
   2 // considered live during the thread's termination, at least until the
   3 // user-installed TSD destructors have finished running (since they may contain
   4 // additional cleanup tasks). LSan doesn't actually meet that goal 100%, but it
   5 // makes its best effort.
   6 // RUN: %clang_lsan %s -o %t
   7 // RUN: %env_lsan_opts="report_objects=1:use_registers=0:use_stacks=0:use_tls=1" %run %t
   8 // RUN: %env_lsan_opts="report_objects=1:use_registers=0:use_stacks=0:use_tls=0" not %run %t 2>&1 | FileCheck %s
   9
  10 // Investigate why it does not fail with use_stack=0
  11 // UNSUPPORTED: arm-linux || armhf-linux
  12
  13 #include <assert.h>
  14 #include <pthread.h>
  15 #include <stdio.h>
  16 #include <stdlib.h>
  17
  18 #include "sanitizer/lsan_interface.h"
  19 #include "sanitizer_common/print_address.h"
  20
  21 pthread_key_t key;
  22 __thread void *p;
  23
  24 void key_destructor(void *arg) {
  25   // Generally this may happen on a different thread.
  26   __lsan_do_leak_check();
  27 }
  28
  29 void *thread_func(void *arg) {
  30   p = malloc(1337);
  31   print_address("Test alloc: ", 1, p);
  32   int res = pthread_setspecific(key, (void*)1);
  33   assert(res == 0);
  34   return 0;
  35 }
  36
  37 int main() {
  38   int res = pthread_key_create(&key, &key_destructor);
  39   assert(res == 0);
  40   pthread_t thread_id;
  41   res = pthread_create(&thread_id, 0, thread_func, 0);
  42   assert(res == 0);
  43   res = pthread_join(thread_id, 0);
  44   assert(res == 0);
  45   return 0;
  46 }
  47 // CHECK: Test alloc: [[ADDR:0x[0-9,a-f]+]]
  48 // CHECK: [[ADDR]] (1337 bytes)