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Diffstat (limited to 'test/lsan/TestCases/fork_threaded.cc')
-rw-r--r-- | test/lsan/TestCases/fork_threaded.cc | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/test/lsan/TestCases/fork_threaded.cc b/test/lsan/TestCases/fork_threaded.cc new file mode 100644 index 000000000000..62702b4dfe47 --- /dev/null +++ b/test/lsan/TestCases/fork_threaded.cc @@ -0,0 +1,43 @@ +// Test that thread local data is handled correctly after forking without +// exec(). In this test leak checking is initiated from a non-main thread. +// RUN: %clangxx_lsan %s -o %t +// RUN: %run %t 2>&1 + +#include <assert.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/wait.h> +#include <unistd.h> + +__thread void *thread_local_var; + +void *exit_thread_func(void *arg) { + exit(0); +} + +void ExitFromThread() { + pthread_t tid; + int res; + res = pthread_create(&tid, 0, exit_thread_func, 0); + assert(res == 0); + pthread_join(tid, 0); +} + +int main() { + int status = 0; + thread_local_var = malloc(1337); + pid_t pid = fork(); + assert(pid >= 0); + if (pid > 0) { + waitpid(pid, &status, 0); + assert(WIFEXITED(status)); + return WEXITSTATUS(status); + } else { + // Spawn a thread and call exit() from there, to check that we track main + // thread's pid correctly even if leak checking is initiated from another + // thread. + ExitFromThread(); + } + return 0; +} |