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d665cd9b | 1 | /* allocfail.c -- Test for libbacktrace library |
99dee823 | 2 | Copyright (C) 2018-2021 Free Software Foundation, Inc. |
d665cd9b TV |
3 | |
4 | Redistribution and use in source and binary forms, with or without | |
5 | modification, are permitted provided that the following conditions are | |
6 | met: | |
7 | ||
8 | (1) Redistributions of source code must retain the above copyright | |
9 | notice, this list of conditions and the following disclaimer. | |
10 | ||
11 | (2) Redistributions in binary form must reproduce the above copyright | |
12 | notice, this list of conditions and the following disclaimer in | |
13 | the documentation and/or other materials provided with the | |
14 | distribution. | |
15 | ||
16 | (3) The name of the author may not be used to | |
17 | endorse or promote products derived from this software without | |
18 | specific prior written permission. | |
19 | ||
20 | THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
21 | IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
22 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
23 | DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, | |
24 | INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
25 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
26 | SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
27 | HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
28 | STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
29 | IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
30 | POSSIBILITY OF SUCH DAMAGE. */ | |
31 | ||
32 | #include <assert.h> | |
33 | #include <stdio.h> | |
34 | #include <stdlib.h> | |
35 | #include <string.h> | |
36 | #include <unistd.h> | |
37 | ||
38 | #include "filenames.h" | |
39 | ||
40 | #include "backtrace.h" | |
41 | #include "backtrace-supported.h" | |
42 | ||
43 | #include "testlib.h" | |
44 | ||
45 | extern uint64_t get_nr_allocs (void); | |
46 | extern void set_fail_at_alloc (uint64_t); | |
47 | extern int at_fail_alloc_p (void); | |
48 | ||
49 | static int test1 (void) __attribute__ ((noinline, unused)); | |
50 | static int f2 (int) __attribute__ ((noinline)); | |
51 | static int f3 (int, int) __attribute__ ((noinline)); | |
52 | ||
53 | static unsigned callback_errors = 0; | |
54 | ||
55 | static void | |
56 | error_callback_full (void *vdata ATTRIBUTE_UNUSED, | |
57 | const char *msg ATTRIBUTE_UNUSED, | |
58 | int errnum ATTRIBUTE_UNUSED) | |
59 | { | |
60 | if (at_fail_alloc_p ()) | |
61 | { | |
62 | set_fail_at_alloc (0); | |
63 | return; | |
64 | } | |
65 | ||
66 | callback_errors++; | |
67 | } | |
68 | ||
69 | static int | |
70 | callback_full (void *vdata ATTRIBUTE_UNUSED, uintptr_t pc ATTRIBUTE_UNUSED, | |
71 | const char *filename ATTRIBUTE_UNUSED, | |
72 | int lineno ATTRIBUTE_UNUSED, | |
73 | const char *function ATTRIBUTE_UNUSED) | |
74 | { | |
75 | ||
76 | return 0; | |
77 | } | |
78 | ||
79 | static int | |
80 | test1 (void) | |
81 | { | |
82 | return f2 (__LINE__) + 1; | |
83 | } | |
84 | ||
85 | static int | |
86 | f2 (int f1line) | |
87 | { | |
88 | return f3 (f1line, __LINE__) + 2; | |
89 | } | |
90 | ||
91 | static int | |
92 | f3 (int f1line ATTRIBUTE_UNUSED, int f2line ATTRIBUTE_UNUSED) | |
93 | { | |
94 | int i; | |
95 | ||
96 | i = backtrace_full (state, 0, callback_full, error_callback_full, NULL); | |
97 | ||
98 | if (i != 0) | |
99 | { | |
100 | fprintf (stderr, "test1: unexpected return value %d\n", i); | |
101 | ++failures; | |
102 | } | |
103 | ||
104 | if (callback_errors) | |
105 | ++failures; | |
106 | ||
107 | return failures; | |
108 | } | |
109 | ||
110 | /* Run all the tests. */ | |
111 | ||
112 | int | |
113 | main (int argc, char **argv) | |
114 | { | |
115 | uint64_t fail_at = 0; | |
116 | ||
117 | if (argc == 2) | |
118 | { | |
119 | fail_at = atoi (argv[1]); | |
120 | set_fail_at_alloc (fail_at); | |
121 | } | |
122 | ||
123 | state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS, | |
124 | error_callback_full, NULL); | |
125 | if (state == NULL) | |
126 | exit (failures ? EXIT_FAILURE : EXIT_SUCCESS); | |
127 | ||
128 | #if BACKTRACE_SUPPORTED | |
129 | test1 (); | |
130 | #endif | |
131 | ||
132 | if (argc == 1) | |
5e2a7241 | 133 | fprintf (stderr, "%llu\n", (long long unsigned) get_nr_allocs ()); |
d665cd9b TV |
134 | |
135 | exit (failures ? EXIT_FAILURE : EXIT_SUCCESS); | |
136 | } |