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108 lines
3.5 KiB
C++
108 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: set ts=8 sw=4 et tw=99 ft=cpp:
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at:
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Code.
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*
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* The Initial Developer of the Original Code is
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* The Mozilla Foundation
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* Portions created by the Initial Developer are Copyright (C) 2012
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Mike Hommey <mh@glandium.org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "mozilla/Attributes.h"
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#include "mozilla/Types.h"
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#include <cstdio>
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#include <cstdlib>
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#ifndef WIN32
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#include <signal.h>
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#endif
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#ifdef ANDROID
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#include <android/log.h>
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#endif
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/* Implementations of runtime and static assertion macros for C and C++. */
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extern "C" {
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MOZ_EXPORT_API(void)
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MOZ_Crash()
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{
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/*
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* We write 123 here so that the machine code for this function is
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* unique. Otherwise the linker, trying to be smart, might use the
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* same code for MOZ_Crash and for some other function. That
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* messes up the signature in minidumps.
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*/
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#if defined(WIN32)
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/*
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* We used to call DebugBreak() on Windows, but amazingly, it causes
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* the MSVS 2010 debugger not to be able to recover a call stack.
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*/
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*((volatile int *) NULL) = 123;
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exit(3);
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#elif defined(ANDROID)
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/*
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* On Android, raise(SIGABRT) is handled asynchronously. Seg fault now
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* so we crash immediately and capture the current call stack.
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*/
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*((volatile int *) NULL) = 123;
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abort();
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#elif defined(__APPLE__)
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/*
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* On Mac OS X, Breakpad ignores signals. Only real Mach exceptions are
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* trapped.
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*/
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*((volatile int *) NULL) = 123; /* To continue from here in GDB: "return" then "continue". */
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raise(SIGABRT); /* In case above statement gets nixed by the optimizer. */
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#else
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raise(SIGABRT); /* To continue from here in GDB: "signal 0". */
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#endif
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}
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MOZ_EXPORT_API(void)
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MOZ_Assert(const char* s, const char* file, int ln)
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{
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#ifdef ANDROID
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__android_log_print(ANDROID_LOG_FATAL, "MOZ_Assert",
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"Assertion failure: %s, at %s:%d\n", s, file, ln);
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#else
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fprintf(stderr, "Assertion failure: %s, at %s:%d\n", s, file, ln);
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fflush(stderr);
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#endif
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MOZ_Crash();
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}
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}
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