// SPDX-License-Identifier: GPL-2.0-only /* * Copyright 2015, Michael Neuling, IBM Corp. * * Edited: Rashmica Gupta, Nov 2015 * * This test does a fork syscall inside a transaction. Basic sniff test * to see if we can enter the kernel during a transaction. */ #include <errno.h> #include <inttypes.h> #include <pthread.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include "utils.h" #include "tm.h" int test_fork(void) { SKIP_IF(!have_htm()); SKIP_IF(htm_is_synthetic()); asm __volatile__( "tbegin.;" "blt 1f; " "li 0, 2;" /* fork syscall */ "sc ;" "tend.;" "1: ;" : : : "memory", "r0"); /* If we reach here, we've passed. Otherwise we've probably crashed * the kernel */ return 0; } int main(int argc, char *argv[]) { return test_harness(test_fork, "tm_fork"); }