|
111
|
1 /* ttest.c -- Test for libbacktrace library
|
|
145
|
2 Copyright (C) 2017-2020 Free Software Foundation, Inc.
|
|
111
|
3 Written by Ian Lance Taylor, Google.
|
|
|
4
|
|
|
5 Redistribution and use in source and binary forms, with or without
|
|
|
6 modification, are permitted provided that the following conditions are
|
|
|
7 met:
|
|
|
8
|
|
|
9 (1) Redistributions of source code must retain the above copyright
|
|
|
10 notice, this list of conditions and the following disclaimer.
|
|
|
11
|
|
|
12 (2) Redistributions in binary form must reproduce the above copyright
|
|
|
13 notice, this list of conditions and the following disclaimer in
|
|
|
14 the documentation and/or other materials provided with the
|
|
|
15 distribution.
|
|
|
16
|
|
|
17 (3) The name of the author may not be used to
|
|
|
18 endorse or promote products derived from this software without
|
|
|
19 specific prior written permission.
|
|
|
20
|
|
|
21 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
|
22 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
|
23 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
|
24 DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
|
|
|
25 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
|
26 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
|
27 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
|
28 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
|
29 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
|
|
30 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
|
31 POSSIBILITY OF SUCH DAMAGE. */
|
|
|
32
|
|
|
33 /* Test using the libbacktrace library from multiple threads. */
|
|
|
34
|
|
|
35 #include <assert.h>
|
|
|
36 #include <stdio.h>
|
|
|
37 #include <stdlib.h>
|
|
|
38 #include <string.h>
|
|
|
39
|
|
|
40 #include <pthread.h>
|
|
|
41
|
|
|
42 #include "filenames.h"
|
|
|
43
|
|
|
44 #include "backtrace.h"
|
|
|
45 #include "backtrace-supported.h"
|
|
|
46
|
|
|
47 #include "testlib.h"
|
|
|
48
|
|
|
49 static int f2 (int) __attribute__ ((noinline));
|
|
|
50 static int f3 (int, int) __attribute__ ((noinline));
|
|
|
51
|
|
|
52 /* Test that a simple backtrace works. This is called via
|
|
|
53 pthread_create. It returns the number of failures, as void *. */
|
|
|
54
|
|
|
55 static void *
|
|
|
56 test1_thread (void *arg ATTRIBUTE_UNUSED)
|
|
|
57 {
|
|
|
58 /* Returning a value here and elsewhere avoids a tailcall which
|
|
|
59 would mess up the backtrace. */
|
|
|
60 return (void *) (uintptr_t) (f2 (__LINE__) - 2);
|
|
|
61 }
|
|
|
62
|
|
|
63 static int
|
|
|
64 f2 (int f1line)
|
|
|
65 {
|
|
|
66 return f3 (f1line, __LINE__) + 2;
|
|
|
67 }
|
|
|
68
|
|
|
69 static int
|
|
|
70 f3 (int f1line, int f2line)
|
|
|
71 {
|
|
|
72 struct info all[20];
|
|
|
73 struct bdata data;
|
|
|
74 int f3line;
|
|
|
75 int i;
|
|
|
76
|
|
|
77 data.all = &all[0];
|
|
|
78 data.index = 0;
|
|
|
79 data.max = 20;
|
|
|
80 data.failed = 0;
|
|
|
81
|
|
|
82 f3line = __LINE__ + 1;
|
|
|
83 i = backtrace_full (state, 0, callback_one, error_callback_one, &data);
|
|
|
84
|
|
|
85 if (i != 0)
|
|
|
86 {
|
|
|
87 fprintf (stderr, "test1: unexpected return value %d\n", i);
|
|
|
88 data.failed = 1;
|
|
|
89 }
|
|
|
90
|
|
|
91 if (data.index < 3)
|
|
|
92 {
|
|
|
93 fprintf (stderr,
|
|
|
94 "test1: not enough frames; got %zu, expected at least 3\n",
|
|
|
95 data.index);
|
|
|
96 data.failed = 1;
|
|
|
97 }
|
|
|
98
|
|
|
99 check ("test1", 0, all, f3line, "f3", "ttest.c", &data.failed);
|
|
|
100 check ("test1", 1, all, f2line, "f2", "ttest.c", &data.failed);
|
|
|
101 check ("test1", 2, all, f1line, "test1_thread", "ttest.c", &data.failed);
|
|
|
102
|
|
|
103 return data.failed;
|
|
|
104 }
|
|
|
105
|
|
|
106 /* Run the test with 10 threads simultaneously. */
|
|
|
107
|
|
|
108 #define THREAD_COUNT 10
|
|
|
109
|
|
|
110 static void test1 (void) __attribute__ ((unused));
|
|
|
111
|
|
|
112 static void
|
|
|
113 test1 (void)
|
|
|
114 {
|
|
|
115 pthread_t atid[THREAD_COUNT];
|
|
|
116 int i;
|
|
|
117 int errnum;
|
|
|
118 int this_fail;
|
|
|
119 void *ret;
|
|
|
120
|
|
|
121 for (i = 0; i < THREAD_COUNT; i++)
|
|
|
122 {
|
|
|
123 errnum = pthread_create (&atid[i], NULL, test1_thread, NULL);
|
|
|
124 if (errnum != 0)
|
|
|
125 {
|
|
|
126 fprintf (stderr, "pthread_create %d: %s\n", i, strerror (errnum));
|
|
|
127 exit (EXIT_FAILURE);
|
|
|
128 }
|
|
|
129 }
|
|
|
130
|
|
|
131 this_fail = 0;
|
|
|
132 for (i = 0; i < THREAD_COUNT; i++)
|
|
|
133 {
|
|
|
134 errnum = pthread_join (atid[i], &ret);
|
|
|
135 if (errnum != 0)
|
|
|
136 {
|
|
|
137 fprintf (stderr, "pthread_join %d: %s\n", i, strerror (errnum));
|
|
|
138 exit (EXIT_FAILURE);
|
|
|
139 }
|
|
|
140 this_fail += (int) (uintptr_t) ret;
|
|
|
141 }
|
|
|
142
|
|
|
143 printf ("%s: threaded backtrace_full noinline\n", this_fail > 0 ? "FAIL" : "PASS");
|
|
|
144
|
|
|
145 failures += this_fail;
|
|
|
146 }
|
|
|
147
|
|
|
148 int
|
|
|
149 main (int argc ATTRIBUTE_UNUSED, char **argv)
|
|
|
150 {
|
|
|
151 state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS,
|
|
|
152 error_callback_create, NULL);
|
|
|
153
|
|
|
154 #if BACKTRACE_SUPPORTED
|
|
|
155 #if BACKTRACE_SUPPORTS_THREADS
|
|
|
156 test1 ();
|
|
|
157 #endif
|
|
|
158 #endif
|
|
|
159
|
|
|
160 exit (failures ? EXIT_FAILURE : EXIT_SUCCESS);
|
|
|
161 }
|
