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1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
4 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 2010 Dreamhost | |
7 | * | |
8 | * This is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License version 2.1, as published by the Free Software | |
11 | * Foundation. See file COPYING. | |
12 | * | |
13 | */ | |
14 | ||
15 | /* | |
16 | * TestSignalHandlers | |
17 | * | |
18 | * Test the Ceph signal handlers | |
19 | */ | |
20 | #include "common/ceph_argparse.h" | |
21 | #include "global/global_init.h" | |
22 | #include "common/errno.h" | |
23 | #include "common/debug.h" | |
24 | #include "common/config.h" | |
25 | ||
26 | #include <errno.h> | |
27 | #include <iostream> | |
28 | #include <sstream> | |
29 | #include <string> | |
30 | ||
31 | #define dout_context g_ceph_context | |
20effc67 TL |
32 | |
33 | using namespace std; | |
7c673cae FG |
34 | |
35 | // avoid compiler warning about dereferencing NULL pointer | |
36 | static int* get_null() | |
37 | { | |
38 | return 0; | |
39 | } | |
40 | ||
41 | static void simple_segv_test() | |
42 | { | |
43 | generic_dout(-1) << "triggering SIGSEGV..." << dendl; | |
44 | // cppcheck-suppress nullPointer | |
45 | int i = *get_null(); | |
46 | std::cout << "i = " << i << std::endl; | |
47 | } | |
48 | ||
49 | // Given the name of the function, we can be pretty sure this is intentional. | |
50 | ||
1e59de90 TL |
51 | #pragma GCC diagnostic push |
52 | #pragma GCC diagnostic ignored "-Winfinite-recursion" | |
7c673cae | 53 | |
1e59de90 | 54 | #pragma clang diagnostic push |
7c673cae FG |
55 | #pragma clang diagnostic ignored "-Winfinite-recursion" |
56 | ||
57 | static void infinite_recursion_test_impl() | |
58 | { | |
59 | infinite_recursion_test_impl(); | |
60 | } | |
61 | ||
1e59de90 | 62 | #pragma GCC diagnostic pop |
7c673cae FG |
63 | #pragma clang diagnostic pop |
64 | ||
65 | static void infinite_recursion_test() | |
66 | { | |
67 | generic_dout(0) << "triggering SIGSEGV with infinite recursion..." << dendl; | |
68 | infinite_recursion_test_impl(); | |
69 | } | |
70 | ||
71 | static void usage() | |
72 | { | |
11fdf7f2 TL |
73 | cout << "usage: TestSignalHandlers [test]" << std::endl; |
74 | cout << "--simple_segv: run simple_segv test" << std::endl; | |
75 | cout << "--infinite_recursion: run infinite_recursion test" << std::endl; | |
76 | generic_client_usage(); | |
7c673cae FG |
77 | } |
78 | ||
79 | typedef void (*test_fn_t)(void); | |
80 | ||
81 | int main(int argc, const char **argv) | |
82 | { | |
20effc67 | 83 | auto args = argv_to_vec(argc, argv); |
11fdf7f2 TL |
84 | if (args.empty()) { |
85 | cerr << argv[0] << ": -h or --help for usage" << std::endl; | |
86 | exit(1); | |
87 | } | |
88 | if (ceph_argparse_need_usage(args)) { | |
89 | usage(); | |
90 | exit(0); | |
91 | } | |
7c673cae FG |
92 | |
93 | auto cct = global_init(NULL, args, CEPH_ENTITY_TYPE_CLIENT, | |
11fdf7f2 TL |
94 | CODE_ENVIRONMENT_UTILITY, |
95 | CINIT_FLAG_NO_DEFAULT_CONFIG_FILE); | |
7c673cae FG |
96 | common_init_finish(g_ceph_context); |
97 | ||
98 | test_fn_t fn = NULL; | |
99 | for (std::vector<const char*>::iterator i = args.begin(); i != args.end(); ) { | |
100 | if (ceph_argparse_double_dash(args, i)) { | |
101 | break; | |
7c673cae FG |
102 | } else if (ceph_argparse_flag(args, i, "--infinite_recursion", (char*)NULL)) { |
103 | fn = infinite_recursion_test; | |
104 | } else if (ceph_argparse_flag(args, i, "-s", "--simple_segv", (char*)NULL)) { | |
105 | fn = simple_segv_test; | |
106 | } else { | |
11fdf7f2 TL |
107 | cerr << "unrecognized argument: " << *i << std::endl; |
108 | exit(1); | |
7c673cae FG |
109 | } |
110 | } | |
111 | if (!fn) { | |
112 | std::cerr << "Please select a test to run. Type -h for help." << std::endl; | |
11fdf7f2 | 113 | exit(1); |
7c673cae FG |
114 | } |
115 | fn(); | |
116 | return 0; | |
117 | } |