powerpc: Fix macro usage of htm builtins
[glibc.git] / debug / tst-backtrace2.c
blobd139c106383c4071ecf2580eee8f1d3d65b172af
1 /* Test backtrace and backtrace_symbols.
2 Copyright (C) 2009-2016 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #include <execinfo.h>
20 #include <search.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
25 #include "tst-backtrace.h"
27 static int do_test (void);
28 #define TEST_FUNCTION do_test ()
29 #include "../test-skeleton.c"
31 /* The backtrace should include at least f1, f2, f3, and do_test. */
32 #define NUM_FUNCTIONS 4
34 NO_INLINE void
35 fn1 (void)
37 void *addresses[NUM_FUNCTIONS];
38 char **symbols;
39 int n;
40 int i;
42 /* Get the backtrace addresses. */
43 n = backtrace (addresses, sizeof (addresses) / sizeof (addresses[0]));
44 printf ("Obtained backtrace with %d functions\n", n);
45 /* Check that there are at least four functions. */
46 if (n < NUM_FUNCTIONS)
48 FAIL ();
49 return;
51 /* Convert them to symbols. */
52 symbols = backtrace_symbols (addresses, n);
53 /* Check that symbols were obtained. */
54 if (symbols == NULL)
56 FAIL ();
57 return;
59 for (i = 0; i < n; ++i)
60 printf ("Function %d: %s\n", i, symbols[i]);
61 /* Check that the function names obtained are accurate. */
62 if (!match (symbols[0], "fn1"))
64 FAIL ();
65 return;
67 /* Symbol names are not available for static functions, so we do not
68 check f2. */
69 if (!match (symbols[2], "fn3"))
71 FAIL ();
72 return;
74 /* Symbol names are not available for static functions, so we do not
75 check do_test. */
78 NO_INLINE static int
79 fn2 (void)
81 fn1 ();
82 /* Prevent tail calls. */
83 return x;
86 NO_INLINE int
87 fn3 (void)
89 fn2();
90 /* Prevent tail calls. */
91 return x;
94 NO_INLINE static int
95 do_test (void)
97 /* Test BZ #18084. */
98 void *buffer[1];
100 if (backtrace (buffer, 0) != 0)
101 FAIL ();
103 fn3 ();
104 return ret;