blob: 6efa5a685a7796793f607b5db52605de5429d119 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
// 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());
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");
}
|
