1/*
2Copyright (c) 2012, Broadcom Europe Ltd
3All rights reserved.
4
5Redistribution and use in source and binary forms, with or without
6modification, are permitted provided that the following conditions are met:
7 * Redistributions of source code must retain the above copyright
8 notice, this list of conditions and the following disclaimer.
9 * Redistributions in binary form must reproduce the above copyright
10 notice, this list of conditions and the following disclaimer in the
11 documentation and/or other materials provided with the distribution.
12 * Neither the name of the copyright holder nor the
13 names of its contributors may be used to endorse or promote products
14 derived from this software without specific prior written permission.
15
16THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
20DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26*/
27
28#include "interface/vcos/vcos.h"
29#ifdef __VIDEOCORE__
30#include "host_support/include/vc_debug_sym.h"
31#include "vcfw/vclib/vclib.h"
32#endif
33#include <stdlib.h>
34
35
36int vcos_verify_bkpts = 0;
37#ifdef __VIDEOCORE__
38VC_DEBUG_VAR(vcos_verify_bkpts);
39#endif
40
41int vcos_verify_bkpts_enabled(void)
42{
43 return vcos_verify_bkpts;
44}
45
46int vcos_verify_bkpts_enable(int enable)
47{
48 int old = vcos_verify_bkpts;
49 vcos_verify_bkpts = enable;
50 return old;
51}
52
53/**
54 * Call the fatal error handler.
55 */
56void vcos_abort(void)
57{
58 VCOS_ALERT("vcos_abort: Halting");
59
60#ifdef __VIDEOCORE__
61 _bkpt();
62#endif
63
64#if defined(VCOS_HAVE_BACKTRACE) && !defined(NDEBUG)
65 vcos_backtrace_self();
66#endif
67
68#ifdef __VIDEOCORE__
69 /* Flush the cache to help with postmortem RAM-dump debugging */
70 vclib_cache_flush();
71#endif
72
73#ifdef PLATFORM_RASPBERRYPI
74 extern void pattern(int);
75 while(1)
76 pattern(8);
77#endif
78
79 /* Insert chosen fatal error handler here */
80#if defined __VIDEOCORE__ && !defined(NDEBUG)
81 while(1); /* allow us to attach a debugger after the fact and see where we came from. */
82#else
83 abort(); /* on vc this ends up in _exit_halt which doesn't give us any stack backtrace */
84#endif
85}
86