Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * Copyright 2015, Michael Neuling, IBM Corp.
3 * Licensed under GPLv2.
4 *
5 * Edited: Rashmica Gupta, Nov 2015
6 *
7 * This test does a fork syscall inside a transaction. Basic sniff test
8 * to see if we can enter the kernel during a transaction.
9 */
10
11#include <errno.h>
12#include <inttypes.h>
13#include <pthread.h>
14#include <stdio.h>
15#include <stdlib.h>
16#include <unistd.h>
17
18#include "utils.h"
19#include "tm.h"
20
21int test_fork(void)
22{
23 SKIP_IF(!have_htm());
24
25 asm __volatile__(
26 "tbegin.;"
27 "blt 1f; "
28 "li 0, 2;" /* fork syscall */
29 "sc ;"
30 "tend.;"
31 "1: ;"
32 : : : "memory", "r0");
33 /* If we reach here, we've passed. Otherwise we've probably crashed
34 * the kernel */
35
36 return 0;
37}
38
39int main(int argc, char *argv[])
40{
41 return test_harness(test_fork, "tm_fork");
42}