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
25 static char *path;
26
27 static int test_exec(void)
28 {
29 SKIP_IF(!have_htm());
30 SKIP_IF(htm_is_synthetic());
31
32 asm __volatile__(
33 "tbegin.;"
34 "blt 1f; "
35 "tsuspend.;"
36 "1: ;"
37 : : : "memory");
38
39 execl(path, "tm-exec", "--child", NULL);
40
41 /* Shouldn't get here */
42 perror("execl() failed");
43 return 1;
44 }
45
46 static int after_exec(void)
47 {
48 asm __volatile__(
49 "tbegin.;"
50 "blt 1f;"
51 "tsuspend.;"
52 "1: ;"
53 : : : "memory");
54
55 FAIL_IF(failure_is_nesting());
56 return 0;
57 }
58
59 int main(int argc, char *argv[])
60 {
61 path = argv[0];
62
63 if (argc > 1 && strcmp(argv[1], "--child") == 0)
64 return after_exec();
65
66 return test_harness(test_exec, "tm_exec");
67 }
68
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