TEST(libbacktrace, ptrace_ignore_frames) {
  pid_t pid;
  if ((pid = fork()) == 0) {
    ASSERT_NE(test_level_one(1, 2, 3, 4, NULL, NULL), 0);
    exit(1);
  }
  VerifyProcTest(pid, BACKTRACE_CURRENT_THREAD, ReadyLevelBacktrace, VerifyProcessIgnoreFrames);

  kill(pid, SIGKILL);
  int status;
  ASSERT_EQ(waitpid(pid, &status, 0), pid);
}
Exemplo n.º 2
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TEST(libbacktrace, ptrace_trace) {
  pid_t pid;
  if ((pid = fork()) == 0) {
    ASSERT_NE(test_level_one(1, 2, 3, 4, NULL, NULL), 0);
    exit(1);
  }
  VerifyProcTest(pid, -1, ReadyLevelBacktrace, VerifyLevelDump);

  kill(pid, SIGKILL);
  int status;
  ASSERT_EQ(waitpid(pid, &status, 0), pid);
}
TEST(libbacktrace, ptrace_max_trace) {
  pid_t pid;
  if ((pid = fork()) == 0) {
    ASSERT_NE(test_recursive_call(MAX_BACKTRACE_FRAMES+10, NULL, NULL), 0);
    exit(1);
  }
  VerifyProcTest(pid, BACKTRACE_CURRENT_THREAD, ReadyMaxBacktrace, VerifyMaxDump);

  kill(pid, SIGKILL);
  int status;
  ASSERT_EQ(waitpid(pid, &status, 0), pid);
}
TEST(libbacktrace, ptrace_trace_shared_map) {
  pid_t pid;
  if ((pid = fork()) == 0) {
    ASSERT_NE(test_level_one(1, 2, 3, 4, NULL, NULL), 0);
    exit(1);
  }

  VerifyProcTest(pid, BACKTRACE_CURRENT_THREAD, true, ReadyLevelBacktrace, VerifyLevelDump);

  kill(pid, SIGKILL);
  int status;
  ASSERT_EQ(waitpid(pid, &status, 0), pid);
}
TEST(libbacktrace, ptrace_threads) {
  pid_t pid;
  if ((pid = fork()) == 0) {
    for (size_t i = 0; i < NUM_PTRACE_THREADS; i++) {
      pthread_attr_t attr;
      pthread_attr_init(&attr);
      pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);

      pthread_t thread;
      ASSERT_TRUE(pthread_create(&thread, &attr, PtraceThreadLevelRun, NULL) == 0);
    }
    ASSERT_NE(test_level_one(1, 2, 3, 4, NULL, NULL), 0);
    exit(1);
  }

  // Check to see that all of the threads are running before unwinding.
  std::vector<pid_t> threads;
  uint64_t start = NanoTime();
  do {
    usleep(US_PER_MSEC);
    threads.clear();
    GetThreads(pid, &threads);
  } while ((threads.size() != NUM_PTRACE_THREADS + 1) &&
      ((NanoTime() - start) <= 5 * NS_PER_SEC));
  ASSERT_EQ(threads.size(), static_cast<size_t>(NUM_PTRACE_THREADS + 1));

  ASSERT_TRUE(ptrace(PTRACE_ATTACH, pid, 0, 0) == 0);
  WaitForStop(pid);
  for (std::vector<int>::const_iterator it = threads.begin(); it != threads.end(); ++it) {
    // Skip the current forked process, we only care about the threads.
    if (pid == *it) {
      continue;
    }
    VerifyProcTest(pid, *it, ReadyLevelBacktrace, VerifyLevelDump);
  }
  ASSERT_TRUE(ptrace(PTRACE_DETACH, pid, 0, 0) == 0);

  kill(pid, SIGKILL);
  int status;
  ASSERT_EQ(waitpid(pid, &status, 0), pid);
}