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eff02e4f | 1 | /* unknown.c -- used when backtrace configury does not know file format. |
99dee823 | 2 | Copyright (C) 2012-2021 Free Software Foundation, Inc. |
eff02e4f ILT |
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 | |
84ebf639 | 10 | notice, this list of conditions and the following disclaimer. |
eff02e4f ILT |
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 | |
84ebf639 CL |
15 | distribution. |
16 | ||
eff02e4f ILT |
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 | #include "config.h" | |
34 | ||
35 | #include <sys/types.h> | |
36 | ||
37 | #include "backtrace.h" | |
38 | #include "internal.h" | |
39 | ||
40 | /* A trivial routine that always fails to find fileline data. */ | |
41 | ||
42 | static int | |
f588eb27 | 43 | unknown_fileline (struct backtrace_state *state ATTRIBUTE_UNUSED, |
eff02e4f | 44 | uintptr_t pc, backtrace_full_callback callback, |
f588eb27 | 45 | backtrace_error_callback error_callback ATTRIBUTE_UNUSED, |
eff02e4f ILT |
46 | void *data) |
47 | ||
48 | { | |
49 | return callback (data, pc, NULL, 0, NULL); | |
50 | } | |
51 | ||
52 | /* Initialize the backtrace data when we don't know how to read the | |
53 | debug info. */ | |
54 | ||
55 | int | |
f588eb27 | 56 | backtrace_initialize (struct backtrace_state *state ATTRIBUTE_UNUSED, |
9283471b | 57 | const char *filename ATTRIBUTE_UNUSED, |
f588eb27 | 58 | int descriptor ATTRIBUTE_UNUSED, |
eff02e4f | 59 | backtrace_error_callback error_callback ATTRIBUTE_UNUSED, |
f588eb27 | 60 | void *data ATTRIBUTE_UNUSED, fileline *fileline_fn) |
eff02e4f | 61 | { |
f588eb27 | 62 | state->fileline_data = NULL; |
eff02e4f | 63 | *fileline_fn = unknown_fileline; |
eff02e4f ILT |
64 | return 1; |
65 | } |