1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 * Copyright 2016, Cyril Bur, IBM Corp.
 4 *
 5 * Syscalls can be performed provided the transactions are suspended.
 6 * The exec() class of syscall is unique as a new process is loaded.
 7 *
 8 * It makes little sense for after an exec() call for the previously
 9 * suspended transaction to still exist.
10 */
11
12#define _GNU_SOURCE
13#include <errno.h>
14#include <inttypes.h>
15#include <libgen.h>
16#include <pthread.h>
17#include <stdio.h>
18#include <stdlib.h>
19#include <string.h>
20#include <unistd.h>
21
22#include "utils.h"
23#include "tm.h"
24
25static char *path;
26
27static int test_exec(void)
28{
29	SKIP_IF(!have_htm());
30
31	asm __volatile__(
32		"tbegin.;"
33		"blt    1f; "
34		"tsuspend.;"
35		"1: ;"
36		: : : "memory");
37
38	execl(path, "tm-exec", "--child", NULL);
39
40	/* Shouldn't get here */
41	perror("execl() failed");
42	return 1;
43}
44
45static int after_exec(void)
46{
47	asm __volatile__(
48		"tbegin.;"
49		"blt    1f;"
50		"tsuspend.;"
51		"1: ;"
52		: : : "memory");
53
54	FAIL_IF(failure_is_nesting());
55	return 0;
56}
57
58int main(int argc, char *argv[])
59{
60	path = argv[0];
61
62	if (argc > 1 && strcmp(argv[1], "--child") == 0)
63		return after_exec();
64
65	return test_harness(test_exec, "tm_exec");
66}